On Fri, Jul 07, 2023 at 01:49:24PM +0900, Michael Paquier wrote: > Hmm. If we go down this road I would make the choice of simplicity > and remove entirely a column, then, generating the snakecase from the > camelcase or vice-versa (say like a $string =~ s/([a-z]+)/$1_/g;), > even if it means having slightly incompatible strings showing to the > users. And I'd rather minimize the number of exceptions we need to > handle in this automation (aka no exception rules for some keywords > like "SSL" or "WAL", etc.).
After pondering more about that, the attached patch set does exactly that. Patch 0001 includes an update of the wait event names so as these are more consistent with the enum elements generated. With this change, users can apply lower() or upper() across monitoring queries and still get the same results as before. An exception was the message queue events, which the enums used "MQ" but the event names used "MessageQueue", but this concerns only four lines of code in the backend. The newly-generated enum elements match with the existing ones, except for MQ. Patch 0002 introduces a set of simplifications for the format of wait_event_names.txt: - Removal of the first column for the enums. - Removal of the quotes for the event name. We have a single keyword for these, so that's kind of annoying to cope with that for new entries. - Build of the enum elements using the event names, by applying a rebuild as simple as that: + $waiteventenumname =~ s/([a-z])([A-Z])/$1_$2/g; + $waiteventenumname = uc($waiteventenumname); Thoughts? -- Michael
From 30dff3cc8ab825bc968ecfed13eecee6725f6a80 Mon Sep 17 00:00:00 2001 From: Michael Paquier <mich...@paquier.xyz> Date: Sun, 9 Jul 2023 13:24:54 +0900 Subject: [PATCH 1/2] Rename wait events with more consistent camelcase style This will help in the introduction of more simplifications with the generation of wait event data using wait_event_names.txt. The event names used the same case-insensitive characters, hence applying lower() or upper() to the monitoring queries allows the detection of the same events as before this change. --- src/backend/libpq/pqmq.c | 2 +- src/backend/storage/ipc/shm_mq.c | 6 +- .../utils/activity/wait_event_names.txt | 90 +++++++++---------- 3 files changed, 49 insertions(+), 49 deletions(-) diff --git a/src/backend/libpq/pqmq.c b/src/backend/libpq/pqmq.c index 39e77ef945..87b8570a42 100644 --- a/src/backend/libpq/pqmq.c +++ b/src/backend/libpq/pqmq.c @@ -182,7 +182,7 @@ mq_putmessage(char msgtype, const char *s, size_t len) break; (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0, - WAIT_EVENT_MQ_PUT_MESSAGE); + WAIT_EVENT_MESSAGE_QUEUE_PUT_MESSAGE); ResetLatch(MyLatch); CHECK_FOR_INTERRUPTS(); } diff --git a/src/backend/storage/ipc/shm_mq.c b/src/backend/storage/ipc/shm_mq.c index d134a09a19..06d6b73527 100644 --- a/src/backend/storage/ipc/shm_mq.c +++ b/src/backend/storage/ipc/shm_mq.c @@ -1017,7 +1017,7 @@ shm_mq_send_bytes(shm_mq_handle *mqh, Size nbytes, const void *data, * cheaper than setting one that has been reset. */ (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0, - WAIT_EVENT_MQ_SEND); + WAIT_EVENT_MESSAGE_QUEUE_SEND); /* Reset the latch so we don't spin. */ ResetLatch(MyLatch); @@ -1163,7 +1163,7 @@ shm_mq_receive_bytes(shm_mq_handle *mqh, Size bytes_needed, bool nowait, * setting one that has been reset. */ (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0, - WAIT_EVENT_MQ_RECEIVE); + WAIT_EVENT_MESSAGE_QUEUE_RECEIVE); /* Reset the latch so we don't spin. */ ResetLatch(MyLatch); @@ -1252,7 +1252,7 @@ shm_mq_wait_internal(shm_mq *mq, PGPROC **ptr, BackgroundWorkerHandle *handle) /* Wait to be signaled. */ (void) WaitLatch(MyLatch, WL_LATCH_SET | WL_EXIT_ON_PM_DEATH, 0, - WAIT_EVENT_MQ_INTERNAL); + WAIT_EVENT_MESSAGE_QUEUE_INTERNAL); /* Reset the latch so we don't spin. */ ResetLatch(MyLatch); diff --git a/src/backend/utils/activity/wait_event_names.txt b/src/backend/utils/activity/wait_event_names.txt index 7af1a61f95..e706dfd8f3 100644 --- a/src/backend/utils/activity/wait_event_names.txt +++ b/src/backend/utils/activity/wait_event_names.txt @@ -45,15 +45,15 @@ Section: ClassName - WaitEventActivity WAIT_EVENT_ARCHIVER_MAIN "ArchiverMain" "Waiting in main loop of archiver process." -WAIT_EVENT_AUTOVACUUM_MAIN "AutoVacuumMain" "Waiting in main loop of autovacuum launcher process." -WAIT_EVENT_BGWRITER_HIBERNATE "BgWriterHibernate" "Waiting in background writer process, hibernating." -WAIT_EVENT_BGWRITER_MAIN "BgWriterMain" "Waiting in main loop of background writer process." +WAIT_EVENT_AUTOVACUUM_MAIN "AutovacuumMain" "Waiting in main loop of autovacuum launcher process." +WAIT_EVENT_BGWRITER_HIBERNATE "BgwriterHibernate" "Waiting in background writer process, hibernating." +WAIT_EVENT_BGWRITER_MAIN "BgwriterMain" "Waiting in main loop of background writer process." WAIT_EVENT_CHECKPOINTER_MAIN "CheckpointerMain" "Waiting in main loop of checkpointer process." WAIT_EVENT_LOGICAL_APPLY_MAIN "LogicalApplyMain" "Waiting in main loop of logical replication apply process." WAIT_EVENT_LOGICAL_LAUNCHER_MAIN "LogicalLauncherMain" "Waiting in main loop of logical replication launcher process." WAIT_EVENT_LOGICAL_PARALLEL_APPLY_MAIN "LogicalParallelApplyMain" "Waiting in main loop of logical replication parallel apply process." WAIT_EVENT_RECOVERY_WAL_STREAM "RecoveryWalStream" "Waiting in main loop of startup process for WAL to arrive, during streaming recovery." -WAIT_EVENT_SYSLOGGER_MAIN "SysLoggerMain" "Waiting in main loop of syslogger process." +WAIT_EVENT_SYSLOGGER_MAIN "SysloggerMain" "Waiting in main loop of syslogger process." WAIT_EVENT_WAL_RECEIVER_MAIN "WalReceiverMain" "Waiting in main loop of WAL receiver process." WAIT_EVENT_WAL_SENDER_MAIN "WalSenderMain" "Waiting in main loop of WAL sender process." WAIT_EVENT_WAL_WRITER_MAIN "WalWriterMain" "Waiting in main loop of WAL writer process." @@ -71,11 +71,11 @@ Section: ClassName - WaitEventClient WAIT_EVENT_CLIENT_READ "ClientRead" "Waiting to read data from the client." WAIT_EVENT_CLIENT_WRITE "ClientWrite" "Waiting to write data to the client." -WAIT_EVENT_GSS_OPEN_SERVER "GSSOpenServer" "Waiting to read data from the client while establishing a GSSAPI session." -WAIT_EVENT_LIBPQWALRECEIVER_CONNECT "LibPQWalReceiverConnect" "Waiting in WAL receiver to establish connection to remote server." -WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE "LibPQWalReceiverReceive" "Waiting in WAL receiver to receive data from remote server." -WAIT_EVENT_SSL_OPEN_SERVER "SSLOpenServer" "Waiting for SSL while attempting connection." -WAIT_EVENT_WAL_SENDER_WAIT_WAL "WalSenderWaitForWAL" "Waiting for WAL to be flushed in WAL sender process." +WAIT_EVENT_GSS_OPEN_SERVER "GssOpenServer" "Waiting to read data from the client while establishing a GSSAPI session." +WAIT_EVENT_LIBPQWALRECEIVER_CONNECT "LibpqwalreceiverConnect" "Waiting in WAL receiver to establish connection to remote server." +WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE "LibpqwalreceiverReceive" "Waiting in WAL receiver to receive data from remote server." +WAIT_EVENT_SSL_OPEN_SERVER "SslOpenServer" "Waiting for SSL while attempting connection." +WAIT_EVENT_WAL_SENDER_WAIT_WAL "WalSenderWaitWal" "Waiting for WAL to be flushed in WAL sender process." WAIT_EVENT_WAL_SENDER_WRITE_DATA "WalSenderWriteData" "Waiting for any activity when processing replies from WAL receiver in WAL sender process." @@ -93,10 +93,10 @@ WAIT_EVENT_ARCHIVE_CLEANUP_COMMAND "ArchiveCleanupCommand" "Waiting for <xref li WAIT_EVENT_ARCHIVE_COMMAND "ArchiveCommand" "Waiting for <xref linkend="guc-archive-command"/> to complete." WAIT_EVENT_BACKEND_TERMINATION "BackendTermination" "Waiting for the termination of another backend." WAIT_EVENT_BACKUP_WAIT_WAL_ARCHIVE "BackupWaitWalArchive" "Waiting for WAL files required for a backup to be successfully archived." -WAIT_EVENT_BGWORKER_SHUTDOWN "BgWorkerShutdown" "Waiting for background worker to shut down." -WAIT_EVENT_BGWORKER_STARTUP "BgWorkerStartup" "Waiting for background worker to start up." +WAIT_EVENT_BGWORKER_SHUTDOWN "BgworkerShutdown" "Waiting for background worker to shut down." +WAIT_EVENT_BGWORKER_STARTUP "BgworkerStartup" "Waiting for background worker to start up." WAIT_EVENT_BTREE_PAGE "BtreePage" "Waiting for the page number needed to continue a parallel B-tree scan to become available." -WAIT_EVENT_BUFFER_IO "BufferIO" "Waiting for buffer I/O to complete." +WAIT_EVENT_BUFFER_IO "BufferIo" "Waiting for buffer I/O to complete." WAIT_EVENT_CHECKPOINT_DONE "CheckpointDone" "Waiting for a checkpoint to complete." WAIT_EVENT_CHECKPOINT_START "CheckpointStart" "Waiting for a checkpoint to start." WAIT_EVENT_EXECUTE_GATHER "ExecuteGather" "Waiting for activity from a child process while executing a <literal>Gather</literal> plan node." @@ -119,14 +119,14 @@ WAIT_EVENT_LOGICAL_APPLY_SEND_DATA "LogicalApplySendData" "Waiting for a logical WAIT_EVENT_LOGICAL_PARALLEL_APPLY_STATE_CHANGE "LogicalParallelApplyStateChange" "Waiting for a logical replication parallel apply process to change state." WAIT_EVENT_LOGICAL_SYNC_DATA "LogicalSyncData" "Waiting for a logical replication remote server to send data for initial table synchronization." WAIT_EVENT_LOGICAL_SYNC_STATE_CHANGE "LogicalSyncStateChange" "Waiting for a logical replication remote server to change state." -WAIT_EVENT_MQ_INTERNAL "MessageQueueInternal" "Waiting for another process to be attached to a shared message queue." -WAIT_EVENT_MQ_PUT_MESSAGE "MessageQueuePutMessage" "Waiting to write a protocol message to a shared message queue." -WAIT_EVENT_MQ_RECEIVE "MessageQueueReceive" "Waiting to receive bytes from a shared message queue." -WAIT_EVENT_MQ_SEND "MessageQueueSend" "Waiting to send bytes to a shared message queue." +WAIT_EVENT_MESSAGE_QUEUE_INTERNAL "MessageQueueInternal" "Waiting for another process to be attached to a shared message queue." +WAIT_EVENT_MESSAGE_QUEUE_PUT_MESSAGE "MessageQueuePutMessage" "Waiting to write a protocol message to a shared message queue." +WAIT_EVENT_MESSAGE_QUEUE_RECEIVE "MessageQueueReceive" "Waiting to receive bytes from a shared message queue." +WAIT_EVENT_MESSAGE_QUEUE_SEND "MessageQueueSend" "Waiting to send bytes to a shared message queue." WAIT_EVENT_PARALLEL_BITMAP_SCAN "ParallelBitmapScan" "Waiting for parallel bitmap scan to become initialized." WAIT_EVENT_PARALLEL_CREATE_INDEX_SCAN "ParallelCreateIndexScan" "Waiting for parallel <command>CREATE INDEX</command> workers to finish heap scan." WAIT_EVENT_PARALLEL_FINISH "ParallelFinish" "Waiting for parallel workers to finish computing." -WAIT_EVENT_PROCARRAY_GROUP_UPDATE "ProcArrayGroupUpdate" "Waiting for the group leader to clear the transaction ID at end of a parallel operation." +WAIT_EVENT_PROCARRAY_GROUP_UPDATE "ProcarrayGroupUpdate" "Waiting for the group leader to clear the transaction ID at end of a parallel operation." WAIT_EVENT_PROC_SIGNAL_BARRIER "ProcSignalBarrier" "Waiting for a barrier event to be processed by all backends." WAIT_EVENT_PROMOTE "Promote" "Waiting for standby promotion." WAIT_EVENT_RECOVERY_CONFLICT_SNAPSHOT "RecoveryConflictSnapshot" "Waiting for recovery conflict resolution for a vacuum cleanup." @@ -170,12 +170,12 @@ WAIT_EVENT_VACUUM_TRUNCATE "VacuumTruncate" "Waiting to acquire an exclusive loc Section: ClassName - WaitEventIO -WAIT_EVENT_BASEBACKUP_READ "BaseBackupRead" "Waiting for base backup to read from a file." -WAIT_EVENT_BASEBACKUP_SYNC "BaseBackupSync" "Waiting for data written by a base backup to reach durable storage." -WAIT_EVENT_BASEBACKUP_WRITE "BaseBackupWrite" "Waiting for base backup to write to a file." -WAIT_EVENT_BUFFILE_READ "BufFileRead" "Waiting for a read from a buffered file." -WAIT_EVENT_BUFFILE_WRITE "BufFileWrite" "Waiting for a write to a buffered file." -WAIT_EVENT_BUFFILE_TRUNCATE "BufFileTruncate" "Waiting for a buffered file to be truncated." +WAIT_EVENT_BASEBACKUP_READ "BasebackupRead" "Waiting for base backup to read from a file." +WAIT_EVENT_BASEBACKUP_SYNC "BasebackupSync" "Waiting for data written by a base backup to reach durable storage." +WAIT_EVENT_BASEBACKUP_WRITE "BasebackupWrite" "Waiting for base backup to write to a file." +WAIT_EVENT_BUFFILE_READ "BuffileRead" "Waiting for a read from a buffered file." +WAIT_EVENT_BUFFILE_WRITE "BuffileWrite" "Waiting for a write to a buffered file." +WAIT_EVENT_BUFFILE_TRUNCATE "BuffileTruncate" "Waiting for a buffered file to be truncated." WAIT_EVENT_CONTROL_FILE_READ "ControlFileRead" "Waiting for a read from the <filename>pg_control</filename> file." WAIT_EVENT_CONTROL_FILE_SYNC "ControlFileSync" "Waiting for the <filename>pg_control</filename> file to reach durable storage. Waiting for an update to the <filename>pg_control</filename> file to reach durable storage." WAIT_EVENT_CONTROL_FILE_SYNC_UPDATE "ControlFileSyncUpdate" "Waiting for an update to the <filename>pg_control</filename> file to reach durable storage." @@ -191,15 +191,15 @@ WAIT_EVENT_DATA_FILE_READ "DataFileRead" "Waiting for a read from a relation dat WAIT_EVENT_DATA_FILE_SYNC "DataFileSync" "Waiting for changes to a relation data file to reach durable storage." WAIT_EVENT_DATA_FILE_TRUNCATE "DataFileTruncate" "Waiting for a relation data file to be truncated." WAIT_EVENT_DATA_FILE_WRITE "DataFileWrite" "Waiting for a write to a relation data file." -WAIT_EVENT_DSM_ALLOCATE "DSMAllocate" "Waiting for a dynamic shared memory segment to be allocated." -WAIT_EVENT_DSM_FILL_ZERO_WRITE "DSMFillZeroWrite" "Waiting to fill a dynamic shared memory backing file with zeroes." -WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ "LockFileAddToDataDirRead" "Waiting for a read while adding a line to the data directory lock file." -WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC "LockFileAddToDataDirSync" "Waiting for data to reach durable storage while adding a line to the data directory lock file." -WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE "LockFileAddToDataDirWrite" "Waiting for a write while adding a line to the data directory lock file." +WAIT_EVENT_DSM_ALLOCATE "DsmAllocate" "Waiting for a dynamic shared memory segment to be allocated." +WAIT_EVENT_DSM_FILL_ZERO_WRITE "DsmFillZeroWrite" "Waiting to fill a dynamic shared memory backing file with zeroes." +WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ "LockFileAddtodatadirRead" "Waiting for a read while adding a line to the data directory lock file." +WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC "LockFileAddtodatadirSync" "Waiting for data to reach durable storage while adding a line to the data directory lock file." +WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE "LockFileAddtodatadirWrite" "Waiting for a write while adding a line to the data directory lock file." WAIT_EVENT_LOCK_FILE_CREATE_READ "LockFileCreateRead" "Waiting to read while creating the data directory lock file." WAIT_EVENT_LOCK_FILE_CREATE_SYNC "LockFileCreateSync" "Waiting for data to reach durable storage while creating the data directory lock file." WAIT_EVENT_LOCK_FILE_CREATE_WRITE "LockFileCreateWrite" "Waiting for a write while creating the data directory lock file." -WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ "LockFileReCheckDataDirRead" "Waiting for a read during recheck of the data directory lock file." +WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ "LockFileRecheckdatadirRead" "Waiting for a read during recheck of the data directory lock file." WAIT_EVENT_LOGICAL_REWRITE_CHECKPOINT_SYNC "LogicalRewriteCheckpointSync" "Waiting for logical rewrite mappings to reach durable storage during a checkpoint." WAIT_EVENT_LOGICAL_REWRITE_MAPPING_SYNC "LogicalRewriteMappingSync" "Waiting for mapping data to reach durable storage during a logical rewrite." WAIT_EVENT_LOGICAL_REWRITE_MAPPING_WRITE "LogicalRewriteMappingWrite" "Waiting for a write of mapping data during a logical rewrite." @@ -216,10 +216,10 @@ WAIT_EVENT_REPLICATION_SLOT_READ "ReplicationSlotRead" "Waiting for a read from WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC "ReplicationSlotRestoreSync" "Waiting for a replication slot control file to reach durable storage while restoring it to memory." WAIT_EVENT_REPLICATION_SLOT_SYNC "ReplicationSlotSync" "Waiting for a replication slot control file to reach durable storage." WAIT_EVENT_REPLICATION_SLOT_WRITE "ReplicationSlotWrite" "Waiting for a write to a replication slot control file." -WAIT_EVENT_SLRU_FLUSH_SYNC "SLRUFlushSync" "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown." -WAIT_EVENT_SLRU_READ "SLRURead" "Waiting for a read of an SLRU page." -WAIT_EVENT_SLRU_SYNC "SLRUSync" "Waiting for SLRU data to reach durable storage following a page write." -WAIT_EVENT_SLRU_WRITE "SLRUWrite" "Waiting for a write of an SLRU page." +WAIT_EVENT_SLRU_FLUSH_SYNC "SlruFlushSync" "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown." +WAIT_EVENT_SLRU_READ "SlruRead" "Waiting for a read of an SLRU page." +WAIT_EVENT_SLRU_SYNC "SlruSync" "Waiting for SLRU data to reach durable storage following a page write." +WAIT_EVENT_SLRU_WRITE "SlruWrite" "Waiting for a write of an SLRU page." WAIT_EVENT_SNAPBUILD_READ "SnapbuildRead" "Waiting for a read of a serialized historical catalog snapshot." WAIT_EVENT_SNAPBUILD_SYNC "SnapbuildSync" "Waiting for a serialized historical catalog snapshot to reach durable storage." WAIT_EVENT_SNAPBUILD_WRITE "SnapbuildWrite" "Waiting for a write of a serialized historical catalog snapshot." @@ -232,18 +232,18 @@ WAIT_EVENT_TWOPHASE_FILE_READ "TwophaseFileRead" "Waiting for a read of a two ph WAIT_EVENT_TWOPHASE_FILE_SYNC "TwophaseFileSync" "Waiting for a two phase state file to reach durable storage." WAIT_EVENT_TWOPHASE_FILE_WRITE "TwophaseFileWrite" "Waiting for a write of a two phase state file." WAIT_EVENT_VERSION_FILE_WRITE "VersionFileWrite" "Waiting for the version file to be written while creating a database." -WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ "WALSenderTimelineHistoryRead" "Waiting for a read from a timeline history file during a walsender timeline command." -WAIT_EVENT_WAL_BOOTSTRAP_SYNC "WALBootstrapSync" "Waiting for WAL to reach durable storage during bootstrapping." -WAIT_EVENT_WAL_BOOTSTRAP_WRITE "WALBootstrapWrite" "Waiting for a write of a WAL page during bootstrapping." -WAIT_EVENT_WAL_COPY_READ "WALCopyRead" "Waiting for a read when creating a new WAL segment by copying an existing one." -WAIT_EVENT_WAL_COPY_SYNC "WALCopySync" "Waiting for a new WAL segment created by copying an existing one to reach durable storage." -WAIT_EVENT_WAL_COPY_WRITE "WALCopyWrite" "Waiting for a write when creating a new WAL segment by copying an existing one." -WAIT_EVENT_WAL_INIT_SYNC "WALInitSync" "Waiting for a newly initialized WAL file to reach durable storage." -WAIT_EVENT_WAL_INIT_WRITE "WALInitWrite" "Waiting for a write while initializing a new WAL file." -WAIT_EVENT_WAL_READ "WALRead" "Waiting for a read from a WAL file." -WAIT_EVENT_WAL_SYNC "WALSync" "Waiting for a WAL file to reach durable storage. Waiting for data to reach durable storage while assigning a new WAL sync method." -WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN "WALSyncMethodAssign" "Waiting for data to reach durable storage while assigning a new WAL sync method." -WAIT_EVENT_WAL_WRITE "WALWrite" "Waiting for a write to a WAL file. Waiting for WAL buffers to be written to disk." +WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ "WalsenderTimelineHistoryRead" "Waiting for a read from a timeline history file during a walsender timeline command." +WAIT_EVENT_WAL_BOOTSTRAP_SYNC "WalBootstrapSync" "Waiting for WAL to reach durable storage during bootstrapping." +WAIT_EVENT_WAL_BOOTSTRAP_WRITE "WalBootstrapWrite" "Waiting for a write of a WAL page during bootstrapping." +WAIT_EVENT_WAL_COPY_READ "WalCopyRead" "Waiting for a read when creating a new WAL segment by copying an existing one." +WAIT_EVENT_WAL_COPY_SYNC "WalCopySync" "Waiting for a new WAL segment created by copying an existing one to reach durable storage." +WAIT_EVENT_WAL_COPY_WRITE "WalCopyWrite" "Waiting for a write when creating a new WAL segment by copying an existing one." +WAIT_EVENT_WAL_INIT_SYNC "WalInitSync" "Waiting for a newly initialized WAL file to reach durable storage." +WAIT_EVENT_WAL_INIT_WRITE "WalInitWrite" "Waiting for a write while initializing a new WAL file." +WAIT_EVENT_WAL_READ "WalRead" "Waiting for a read from a WAL file." +WAIT_EVENT_WAL_SYNC "WalSync" "Waiting for a WAL file to reach durable storage. Waiting for data to reach durable storage while assigning a new WAL sync method." +WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN "WalSyncMethodAssign" "Waiting for data to reach durable storage while assigning a new WAL sync method." +WAIT_EVENT_WAL_WRITE "WalWrite" "Waiting for a write to a WAL file. Waiting for WAL buffers to be written to disk." # -- 2.40.1
From f4646efad35f565f0482f057142ea985c7faa44f Mon Sep 17 00:00:00 2001
From: Michael Paquier <mich...@paquier.xyz>
Date: Sun, 9 Jul 2023 13:21:17 +0900
Subject: [PATCH 2/2] Simplify format of wait_event_names.txt
This file is now made of two columns, removing the column listing the
enum elements for each wait event class:
- Camelcase event name used in pg_stat_activity. There are now
unquoted.
- Description of the documentation.
While on it, add more information in generate-wait_event_types.pl about
the location of any parsing failure.
---
.../activity/generate-wait_event_types.pl | 34 +-
.../utils/activity/wait_event_names.txt | 492 +++++++++---------
2 files changed, 265 insertions(+), 261 deletions(-)
diff --git a/src/backend/utils/activity/generate-wait_event_types.pl b/src/backend/utils/activity/generate-wait_event_types.pl
index 6d1a2af42a..2f8de3af85 100644
--- a/src/backend/utils/activity/generate-wait_event_types.pl
+++ b/src/backend/utils/activity/generate-wait_event_types.pl
@@ -72,25 +72,27 @@ my @lines_sorted =
# Read the sorted lines and populate the hash table
foreach my $line (@lines_sorted)
{
- die "unable to parse wait_event_names.txt"
- unless $line =~ /^(\w+)\t+(\w+)\t+("\w+")\t+("\w.*\.")$/;
+ die "unable to parse wait_event_names.txt for line $line\n"
+ unless $line =~ /^(\w+)\t+(\w+)\t+("\w.*\.")$/;
- ( my $waitclassname,
- my $waiteventenumname,
- my $waiteventdescription,
- my $waitevendocsentence) = split(/\t/, $line);
+ (my $waitclassname, my $waiteventdescription, my $waitevendocsentence) =
+ split(/\t/, $line);
+ # Generate the element name for the enums based on the
+ # description. Camelcase strings like "WaitEventName"
+ # are converted to WAIT_EVENT_WAIT_EVENT_NAME.
+ my $waiteventenumname = $waiteventdescription;
+ # Add underscores between sequences of lower-case and upper-case
+ # characters, then upper-case the whole.
+ $waiteventenumname =~ s/([a-z])([A-Z])/$1_$2/g;
+ $waiteventenumname = uc($waiteventenumname);
+ $waiteventenumname = "WAIT_EVENT_$waiteventenumname";
+
+ # Store the event into the list for each class.
my @waiteventlist =
[ $waiteventenumname, $waiteventdescription, $waitevendocsentence ];
my $trimmedwaiteventname = $waiteventenumname;
- $trimmedwaiteventname =~ s/^WAIT_EVENT_//;
- # An exception is required for LWLock and Lock as these don't require
- # any C and header files generated.
- die "wait event names must start with 'WAIT_EVENT_'"
- if ( $trimmedwaiteventname eq $waiteventenumname
- && $waiteventenumname !~ /^LWLock/
- && $waiteventenumname !~ /^Lock/);
$continue = ",\n";
push(@{ $hashwe{$waitclassname} }, @waiteventlist);
}
@@ -173,7 +175,9 @@ if ($gen_code)
$firstpass = 0;
printf $c "\t\t case %s:\n", $wev->[0];
- printf $c "\t\t\t event_name = %s;\n\t\t\t break;\n", $wev->[1];
+ # Apply quotes to the wait event name string.
+ printf $c "\t\t\t event_name = \"%s\";\n\t\t\t break;\n",
+ $wev->[1];
}
printf $h "\n} $waitclass;\n\n";
@@ -226,7 +230,7 @@ elsif ($gen_docs)
{
printf $s " <row>\n";
printf $s " <entry><literal>%s</literal></entry>\n",
- substr $wev->[1], 1, -1;
+ $wev->[1];
printf $s " <entry>%s</entry>\n", substr $wev->[2], 1, -1;
printf $s " </row>\n";
}
diff --git a/src/backend/utils/activity/wait_event_names.txt b/src/backend/utils/activity/wait_event_names.txt
index e706dfd8f3..5286b37328 100644
--- a/src/backend/utils/activity/wait_event_names.txt
+++ b/src/backend/utils/activity/wait_event_names.txt
@@ -21,7 +21,7 @@
# This file defines one wait event per line, with the following
# tab-separated fields:
#
-# "C symbol in enums" "format in the system views" "description in the docs"
+# "format in the system views" "description in the docs"
#
# When adding a new wait event, make sure it is placed in the appropriate
# ClassName section.
@@ -44,19 +44,19 @@
Section: ClassName - WaitEventActivity
-WAIT_EVENT_ARCHIVER_MAIN "ArchiverMain" "Waiting in main loop of archiver process."
-WAIT_EVENT_AUTOVACUUM_MAIN "AutovacuumMain" "Waiting in main loop of autovacuum launcher process."
-WAIT_EVENT_BGWRITER_HIBERNATE "BgwriterHibernate" "Waiting in background writer process, hibernating."
-WAIT_EVENT_BGWRITER_MAIN "BgwriterMain" "Waiting in main loop of background writer process."
-WAIT_EVENT_CHECKPOINTER_MAIN "CheckpointerMain" "Waiting in main loop of checkpointer process."
-WAIT_EVENT_LOGICAL_APPLY_MAIN "LogicalApplyMain" "Waiting in main loop of logical replication apply process."
-WAIT_EVENT_LOGICAL_LAUNCHER_MAIN "LogicalLauncherMain" "Waiting in main loop of logical replication launcher process."
-WAIT_EVENT_LOGICAL_PARALLEL_APPLY_MAIN "LogicalParallelApplyMain" "Waiting in main loop of logical replication parallel apply process."
-WAIT_EVENT_RECOVERY_WAL_STREAM "RecoveryWalStream" "Waiting in main loop of startup process for WAL to arrive, during streaming recovery."
-WAIT_EVENT_SYSLOGGER_MAIN "SysloggerMain" "Waiting in main loop of syslogger process."
-WAIT_EVENT_WAL_RECEIVER_MAIN "WalReceiverMain" "Waiting in main loop of WAL receiver process."
-WAIT_EVENT_WAL_SENDER_MAIN "WalSenderMain" "Waiting in main loop of WAL sender process."
-WAIT_EVENT_WAL_WRITER_MAIN "WalWriterMain" "Waiting in main loop of WAL writer process."
+ArchiverMain "Waiting in main loop of archiver process."
+AutovacuumMain "Waiting in main loop of autovacuum launcher process."
+BgwriterHibernate "Waiting in background writer process, hibernating."
+BgwriterMain "Waiting in main loop of background writer process."
+CheckpointerMain "Waiting in main loop of checkpointer process."
+LogicalApplyMain "Waiting in main loop of logical replication apply process."
+LogicalLauncherMain "Waiting in main loop of logical replication launcher process."
+LogicalParallelApplyMain "Waiting in main loop of logical replication parallel apply process."
+RecoveryWalStream "Waiting in main loop of startup process for WAL to arrive, during streaming recovery."
+SysloggerMain "Waiting in main loop of syslogger process."
+WalReceiverMain "Waiting in main loop of WAL receiver process."
+WalSenderMain "Waiting in main loop of WAL sender process."
+WalWriterMain "Waiting in main loop of WAL writer process."
#
@@ -69,14 +69,14 @@ WAIT_EVENT_WAL_WRITER_MAIN "WalWriterMain" "Waiting in main loop of WAL writer p
Section: ClassName - WaitEventClient
-WAIT_EVENT_CLIENT_READ "ClientRead" "Waiting to read data from the client."
-WAIT_EVENT_CLIENT_WRITE "ClientWrite" "Waiting to write data to the client."
-WAIT_EVENT_GSS_OPEN_SERVER "GssOpenServer" "Waiting to read data from the client while establishing a GSSAPI session."
-WAIT_EVENT_LIBPQWALRECEIVER_CONNECT "LibpqwalreceiverConnect" "Waiting in WAL receiver to establish connection to remote server."
-WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE "LibpqwalreceiverReceive" "Waiting in WAL receiver to receive data from remote server."
-WAIT_EVENT_SSL_OPEN_SERVER "SslOpenServer" "Waiting for SSL while attempting connection."
-WAIT_EVENT_WAL_SENDER_WAIT_WAL "WalSenderWaitWal" "Waiting for WAL to be flushed in WAL sender process."
-WAIT_EVENT_WAL_SENDER_WRITE_DATA "WalSenderWriteData" "Waiting for any activity when processing replies from WAL receiver in WAL sender process."
+ClientRead "Waiting to read data from the client."
+ClientWrite "Waiting to write data to the client."
+GssOpenServer "Waiting to read data from the client while establishing a GSSAPI session."
+LibpqwalreceiverConnect "Waiting in WAL receiver to establish connection to remote server."
+LibpqwalreceiverReceive "Waiting in WAL receiver to receive data from remote server."
+SslOpenServer "Waiting for SSL while attempting connection."
+WalSenderWaitWal "Waiting for WAL to be flushed in WAL sender process."
+WalSenderWriteData "Waiting for any activity when processing replies from WAL receiver in WAL sender process."
#
@@ -88,59 +88,59 @@ WAIT_EVENT_WAL_SENDER_WRITE_DATA "WalSenderWriteData" "Waiting for any activity
Section: ClassName - WaitEventIPC
-WAIT_EVENT_APPEND_READY "AppendReady" "Waiting for subplan nodes of an <literal>Append</literal> plan node to be ready."
-WAIT_EVENT_ARCHIVE_CLEANUP_COMMAND "ArchiveCleanupCommand" "Waiting for <xref linkend="guc-archive-cleanup-command"/> to complete."
-WAIT_EVENT_ARCHIVE_COMMAND "ArchiveCommand" "Waiting for <xref linkend="guc-archive-command"/> to complete."
-WAIT_EVENT_BACKEND_TERMINATION "BackendTermination" "Waiting for the termination of another backend."
-WAIT_EVENT_BACKUP_WAIT_WAL_ARCHIVE "BackupWaitWalArchive" "Waiting for WAL files required for a backup to be successfully archived."
-WAIT_EVENT_BGWORKER_SHUTDOWN "BgworkerShutdown" "Waiting for background worker to shut down."
-WAIT_EVENT_BGWORKER_STARTUP "BgworkerStartup" "Waiting for background worker to start up."
-WAIT_EVENT_BTREE_PAGE "BtreePage" "Waiting for the page number needed to continue a parallel B-tree scan to become available."
-WAIT_EVENT_BUFFER_IO "BufferIo" "Waiting for buffer I/O to complete."
-WAIT_EVENT_CHECKPOINT_DONE "CheckpointDone" "Waiting for a checkpoint to complete."
-WAIT_EVENT_CHECKPOINT_START "CheckpointStart" "Waiting for a checkpoint to start."
-WAIT_EVENT_EXECUTE_GATHER "ExecuteGather" "Waiting for activity from a child process while executing a <literal>Gather</literal> plan node."
-WAIT_EVENT_HASH_BATCH_ALLOCATE "HashBatchAllocate" "Waiting for an elected Parallel Hash participant to allocate a hash table."
-WAIT_EVENT_HASH_BATCH_ELECT "HashBatchElect" "Waiting to elect a Parallel Hash participant to allocate a hash table."
-WAIT_EVENT_HASH_BATCH_LOAD "HashBatchLoad" "Waiting for other Parallel Hash participants to finish loading a hash table."
-WAIT_EVENT_HASH_BUILD_ALLOCATE "HashBuildAllocate" "Waiting for an elected Parallel Hash participant to allocate the initial hash table."
-WAIT_EVENT_HASH_BUILD_ELECT "HashBuildElect" "Waiting to elect a Parallel Hash participant to allocate the initial hash table."
-WAIT_EVENT_HASH_BUILD_HASH_INNER "HashBuildHashInner" "Waiting for other Parallel Hash participants to finish hashing the inner relation."
-WAIT_EVENT_HASH_BUILD_HASH_OUTER "HashBuildHashOuter" "Waiting for other Parallel Hash participants to finish partitioning the outer relation."
-WAIT_EVENT_HASH_GROW_BATCHES_DECIDE "HashGrowBatchesDecide" "Waiting to elect a Parallel Hash participant to decide on future batch growth."
-WAIT_EVENT_HASH_GROW_BATCHES_ELECT "HashGrowBatchesElect" "Waiting to elect a Parallel Hash participant to allocate more batches."
-WAIT_EVENT_HASH_GROW_BATCHES_FINISH "HashGrowBatchesFinish" "Waiting for an elected Parallel Hash participant to decide on future batch growth."
-WAIT_EVENT_HASH_GROW_BATCHES_REALLOCATE "HashGrowBatchesReallocate" "Waiting for an elected Parallel Hash participant to allocate more batches."
-WAIT_EVENT_HASH_GROW_BATCHES_REPARTITION "HashGrowBatchesRepartition" "Waiting for other Parallel Hash participants to finish repartitioning."
-WAIT_EVENT_HASH_GROW_BUCKETS_ELECT "HashGrowBucketsElect" "Waiting to elect a Parallel Hash participant to allocate more buckets."
-WAIT_EVENT_HASH_GROW_BUCKETS_REALLOCATE "HashGrowBucketsReallocate" "Waiting for an elected Parallel Hash participant to finish allocating more buckets."
-WAIT_EVENT_HASH_GROW_BUCKETS_REINSERT "HashGrowBucketsReinsert" "Waiting for other Parallel Hash participants to finish inserting tuples into new buckets."
-WAIT_EVENT_LOGICAL_APPLY_SEND_DATA "LogicalApplySendData" "Waiting for a logical replication leader apply process to send data to a parallel apply process."
-WAIT_EVENT_LOGICAL_PARALLEL_APPLY_STATE_CHANGE "LogicalParallelApplyStateChange" "Waiting for a logical replication parallel apply process to change state."
-WAIT_EVENT_LOGICAL_SYNC_DATA "LogicalSyncData" "Waiting for a logical replication remote server to send data for initial table synchronization."
-WAIT_EVENT_LOGICAL_SYNC_STATE_CHANGE "LogicalSyncStateChange" "Waiting for a logical replication remote server to change state."
-WAIT_EVENT_MESSAGE_QUEUE_INTERNAL "MessageQueueInternal" "Waiting for another process to be attached to a shared message queue."
-WAIT_EVENT_MESSAGE_QUEUE_PUT_MESSAGE "MessageQueuePutMessage" "Waiting to write a protocol message to a shared message queue."
-WAIT_EVENT_MESSAGE_QUEUE_RECEIVE "MessageQueueReceive" "Waiting to receive bytes from a shared message queue."
-WAIT_EVENT_MESSAGE_QUEUE_SEND "MessageQueueSend" "Waiting to send bytes to a shared message queue."
-WAIT_EVENT_PARALLEL_BITMAP_SCAN "ParallelBitmapScan" "Waiting for parallel bitmap scan to become initialized."
-WAIT_EVENT_PARALLEL_CREATE_INDEX_SCAN "ParallelCreateIndexScan" "Waiting for parallel <command>CREATE INDEX</command> workers to finish heap scan."
-WAIT_EVENT_PARALLEL_FINISH "ParallelFinish" "Waiting for parallel workers to finish computing."
-WAIT_EVENT_PROCARRAY_GROUP_UPDATE "ProcarrayGroupUpdate" "Waiting for the group leader to clear the transaction ID at end of a parallel operation."
-WAIT_EVENT_PROC_SIGNAL_BARRIER "ProcSignalBarrier" "Waiting for a barrier event to be processed by all backends."
-WAIT_EVENT_PROMOTE "Promote" "Waiting for standby promotion."
-WAIT_EVENT_RECOVERY_CONFLICT_SNAPSHOT "RecoveryConflictSnapshot" "Waiting for recovery conflict resolution for a vacuum cleanup."
-WAIT_EVENT_RECOVERY_CONFLICT_TABLESPACE "RecoveryConflictTablespace" "Waiting for recovery conflict resolution for dropping a tablespace."
-WAIT_EVENT_RECOVERY_END_COMMAND "RecoveryEndCommand" "Waiting for <xref linkend="guc-recovery-end-command"/> to complete."
-WAIT_EVENT_RECOVERY_PAUSE "RecoveryPause" "Waiting for recovery to be resumed."
-WAIT_EVENT_REPLICATION_ORIGIN_DROP "ReplicationOriginDrop" "Waiting for a replication origin to become inactive so it can be dropped."
-WAIT_EVENT_REPLICATION_SLOT_DROP "ReplicationSlotDrop" "Waiting for a replication slot to become inactive so it can be dropped."
-WAIT_EVENT_RESTORE_COMMAND "RestoreCommand" "Waiting for <xref linkend="guc-restore-command"/> to complete."
-WAIT_EVENT_SAFE_SNAPSHOT "SafeSnapshot" "Waiting to obtain a valid snapshot for a <literal>READ ONLY DEFERRABLE</literal> transaction."
-WAIT_EVENT_SYNC_REP "SyncRep" "Waiting for confirmation from a remote server during synchronous replication. Waiting to read or update information about the state of synchronous replication."
-WAIT_EVENT_WAL_RECEIVER_EXIT "WalReceiverExit" "Waiting for the WAL receiver to exit."
-WAIT_EVENT_WAL_RECEIVER_WAIT_START "WalReceiverWaitStart" "Waiting for startup process to send initial data for streaming replication."
-WAIT_EVENT_XACT_GROUP_UPDATE "XactGroupUpdate" "Waiting for the group leader to update transaction status at end of a parallel operation."
+AppendReady "Waiting for subplan nodes of an <literal>Append</literal> plan node to be ready."
+ArchiveCleanupCommand "Waiting for <xref linkend="guc-archive-cleanup-command"/> to complete."
+ArchiveCommand "Waiting for <xref linkend="guc-archive-command"/> to complete."
+BackendTermination "Waiting for the termination of another backend."
+BackupWaitWalArchive "Waiting for WAL files required for a backup to be successfully archived."
+BgworkerShutdown "Waiting for background worker to shut down."
+BgworkerStartup "Waiting for background worker to start up."
+BtreePage "Waiting for the page number needed to continue a parallel B-tree scan to become available."
+BufferIo "Waiting for buffer I/O to complete."
+CheckpointDone "Waiting for a checkpoint to complete."
+CheckpointStart "Waiting for a checkpoint to start."
+ExecuteGather "Waiting for activity from a child process while executing a <literal>Gather</literal> plan node."
+HashBatchAllocate "Waiting for an elected Parallel Hash participant to allocate a hash table."
+HashBatchElect "Waiting to elect a Parallel Hash participant to allocate a hash table."
+HashBatchLoad "Waiting for other Parallel Hash participants to finish loading a hash table."
+HashBuildAllocate "Waiting for an elected Parallel Hash participant to allocate the initial hash table."
+HashBuildElect "Waiting to elect a Parallel Hash participant to allocate the initial hash table."
+HashBuildHashInner "Waiting for other Parallel Hash participants to finish hashing the inner relation."
+HashBuildHashOuter "Waiting for other Parallel Hash participants to finish partitioning the outer relation."
+HashGrowBatchesDecide "Waiting to elect a Parallel Hash participant to decide on future batch growth."
+HashGrowBatchesElect "Waiting to elect a Parallel Hash participant to allocate more batches."
+HashGrowBatchesFinish "Waiting for an elected Parallel Hash participant to decide on future batch growth."
+HashGrowBatchesReallocate "Waiting for an elected Parallel Hash participant to allocate more batches."
+HashGrowBatchesRepartition "Waiting for other Parallel Hash participants to finish repartitioning."
+HashGrowBucketsElect "Waiting to elect a Parallel Hash participant to allocate more buckets."
+HashGrowBucketsReallocate "Waiting for an elected Parallel Hash participant to finish allocating more buckets."
+HashGrowBucketsReinsert "Waiting for other Parallel Hash participants to finish inserting tuples into new buckets."
+LogicalApplySendData "Waiting for a logical replication leader apply process to send data to a parallel apply process."
+LogicalParallelApplyStateChange "Waiting for a logical replication parallel apply process to change state."
+LogicalSyncData "Waiting for a logical replication remote server to send data for initial table synchronization."
+LogicalSyncStateChange "Waiting for a logical replication remote server to change state."
+MessageQueueInternal "Waiting for another process to be attached to a shared message queue."
+MessageQueuePutMessage "Waiting to write a protocol message to a shared message queue."
+MessageQueueReceive "Waiting to receive bytes from a shared message queue."
+MessageQueueSend "Waiting to send bytes to a shared message queue."
+ParallelBitmapScan "Waiting for parallel bitmap scan to become initialized."
+ParallelCreateIndexScan "Waiting for parallel <command>CREATE INDEX</command> workers to finish heap scan."
+ParallelFinish "Waiting for parallel workers to finish computing."
+ProcarrayGroupUpdate "Waiting for the group leader to clear the transaction ID at end of a parallel operation."
+ProcSignalBarrier "Waiting for a barrier event to be processed by all backends."
+Promote "Waiting for standby promotion."
+RecoveryConflictSnapshot "Waiting for recovery conflict resolution for a vacuum cleanup."
+RecoveryConflictTablespace "Waiting for recovery conflict resolution for dropping a tablespace."
+RecoveryEndCommand "Waiting for <xref linkend="guc-recovery-end-command"/> to complete."
+RecoveryPause "Waiting for recovery to be resumed."
+ReplicationOriginDrop "Waiting for a replication origin to become inactive so it can be dropped."
+ReplicationSlotDrop "Waiting for a replication slot to become inactive so it can be dropped."
+RestoreCommand "Waiting for <xref linkend="guc-restore-command"/> to complete."
+SafeSnapshot "Waiting to obtain a valid snapshot for a <literal>READ ONLY DEFERRABLE</literal> transaction."
+SyncRep "Waiting for confirmation from a remote server during synchronous replication. Waiting to read or update information about the state of synchronous replication."
+WalReceiverExit "Waiting for the WAL receiver to exit."
+WalReceiverWaitStart "Waiting for startup process to send initial data for streaming replication."
+XactGroupUpdate "Waiting for the group leader to update transaction status at end of a parallel operation."
#
@@ -151,15 +151,15 @@ WAIT_EVENT_XACT_GROUP_UPDATE "XactGroupUpdate" "Waiting for the group leader to
Section: ClassName - WaitEventTimeout
-WAIT_EVENT_BASE_BACKUP_THROTTLE "BaseBackupThrottle" "Waiting during base backup when throttling activity."
-WAIT_EVENT_CHECKPOINT_WRITE_DELAY "CheckpointWriteDelay" "Waiting between writes while performing a checkpoint."
-WAIT_EVENT_PG_SLEEP "PgSleep" "Waiting due to a call to <function>pg_sleep</function> or a sibling function."
-WAIT_EVENT_RECOVERY_APPLY_DELAY "RecoveryApplyDelay" "Waiting to apply WAL during recovery because of a delay setting."
-WAIT_EVENT_RECOVERY_RETRIEVE_RETRY_INTERVAL "RecoveryRetrieveRetryInterval" "Waiting during recovery when WAL data is not available from any source (<filename>pg_wal</filename>, archive or stream)."
-WAIT_EVENT_REGISTER_SYNC_REQUEST "RegisterSyncRequest" "Waiting while sending synchronization requests to the checkpointer, because the request queue is full."
-WAIT_EVENT_SPIN_DELAY "SpinDelay" "Waiting while acquiring a contended spinlock."
-WAIT_EVENT_VACUUM_DELAY "VacuumDelay" "Waiting in a cost-based vacuum delay point."
-WAIT_EVENT_VACUUM_TRUNCATE "VacuumTruncate" "Waiting to acquire an exclusive lock to truncate off any empty pages at the end of a table vacuumed."
+BaseBackupThrottle "Waiting during base backup when throttling activity."
+CheckpointWriteDelay "Waiting between writes while performing a checkpoint."
+PgSleep "Waiting due to a call to <function>pg_sleep</function> or a sibling function."
+RecoveryApplyDelay "Waiting to apply WAL during recovery because of a delay setting."
+RecoveryRetrieveRetryInterval "Waiting during recovery when WAL data is not available from any source (<filename>pg_wal</filename>, archive or stream)."
+RegisterSyncRequest "Waiting while sending synchronization requests to the checkpointer, because the request queue is full."
+SpinDelay "Waiting while acquiring a contended spinlock."
+VacuumDelay "Waiting in a cost-based vacuum delay point."
+VacuumTruncate "Waiting to acquire an exclusive lock to truncate off any empty pages at the end of a table vacuumed."
#
@@ -170,80 +170,80 @@ WAIT_EVENT_VACUUM_TRUNCATE "VacuumTruncate" "Waiting to acquire an exclusive loc
Section: ClassName - WaitEventIO
-WAIT_EVENT_BASEBACKUP_READ "BasebackupRead" "Waiting for base backup to read from a file."
-WAIT_EVENT_BASEBACKUP_SYNC "BasebackupSync" "Waiting for data written by a base backup to reach durable storage."
-WAIT_EVENT_BASEBACKUP_WRITE "BasebackupWrite" "Waiting for base backup to write to a file."
-WAIT_EVENT_BUFFILE_READ "BuffileRead" "Waiting for a read from a buffered file."
-WAIT_EVENT_BUFFILE_WRITE "BuffileWrite" "Waiting for a write to a buffered file."
-WAIT_EVENT_BUFFILE_TRUNCATE "BuffileTruncate" "Waiting for a buffered file to be truncated."
-WAIT_EVENT_CONTROL_FILE_READ "ControlFileRead" "Waiting for a read from the <filename>pg_control</filename> file."
-WAIT_EVENT_CONTROL_FILE_SYNC "ControlFileSync" "Waiting for the <filename>pg_control</filename> file to reach durable storage. Waiting for an update to the <filename>pg_control</filename> file to reach durable storage."
-WAIT_EVENT_CONTROL_FILE_SYNC_UPDATE "ControlFileSyncUpdate" "Waiting for an update to the <filename>pg_control</filename> file to reach durable storage."
-WAIT_EVENT_CONTROL_FILE_WRITE "ControlFileWrite" "Waiting for a write to the <filename>pg_control</filename> file. Waiting for a write to update the <filename>pg_control</filename> file."
-WAIT_EVENT_CONTROL_FILE_WRITE_UPDATE "ControlFileWriteUpdate" "Waiting for a write to update the <filename>pg_control</filename> file."
-WAIT_EVENT_COPY_FILE_READ "CopyFileRead" "Waiting for a read during a file copy operation."
-WAIT_EVENT_COPY_FILE_WRITE "CopyFileWrite" "Waiting for a write during a file copy operation."
-WAIT_EVENT_DATA_FILE_EXTEND "DataFileExtend" "Waiting for a relation data file to be extended."
-WAIT_EVENT_DATA_FILE_FLUSH "DataFileFlush" "Waiting for a relation data file to reach durable storage."
-WAIT_EVENT_DATA_FILE_IMMEDIATE_SYNC "DataFileImmediateSync" "Waiting for an immediate synchronization of a relation data file to durable storage."
-WAIT_EVENT_DATA_FILE_PREFETCH "DataFilePrefetch" "Waiting for an asynchronous prefetch from a relation data file."
-WAIT_EVENT_DATA_FILE_READ "DataFileRead" "Waiting for a read from a relation data file."
-WAIT_EVENT_DATA_FILE_SYNC "DataFileSync" "Waiting for changes to a relation data file to reach durable storage."
-WAIT_EVENT_DATA_FILE_TRUNCATE "DataFileTruncate" "Waiting for a relation data file to be truncated."
-WAIT_EVENT_DATA_FILE_WRITE "DataFileWrite" "Waiting for a write to a relation data file."
-WAIT_EVENT_DSM_ALLOCATE "DsmAllocate" "Waiting for a dynamic shared memory segment to be allocated."
-WAIT_EVENT_DSM_FILL_ZERO_WRITE "DsmFillZeroWrite" "Waiting to fill a dynamic shared memory backing file with zeroes."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_READ "LockFileAddtodatadirRead" "Waiting for a read while adding a line to the data directory lock file."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_SYNC "LockFileAddtodatadirSync" "Waiting for data to reach durable storage while adding a line to the data directory lock file."
-WAIT_EVENT_LOCK_FILE_ADDTODATADIR_WRITE "LockFileAddtodatadirWrite" "Waiting for a write while adding a line to the data directory lock file."
-WAIT_EVENT_LOCK_FILE_CREATE_READ "LockFileCreateRead" "Waiting to read while creating the data directory lock file."
-WAIT_EVENT_LOCK_FILE_CREATE_SYNC "LockFileCreateSync" "Waiting for data to reach durable storage while creating the data directory lock file."
-WAIT_EVENT_LOCK_FILE_CREATE_WRITE "LockFileCreateWrite" "Waiting for a write while creating the data directory lock file."
-WAIT_EVENT_LOCK_FILE_RECHECKDATADIR_READ "LockFileRecheckdatadirRead" "Waiting for a read during recheck of the data directory lock file."
-WAIT_EVENT_LOGICAL_REWRITE_CHECKPOINT_SYNC "LogicalRewriteCheckpointSync" "Waiting for logical rewrite mappings to reach durable storage during a checkpoint."
-WAIT_EVENT_LOGICAL_REWRITE_MAPPING_SYNC "LogicalRewriteMappingSync" "Waiting for mapping data to reach durable storage during a logical rewrite."
-WAIT_EVENT_LOGICAL_REWRITE_MAPPING_WRITE "LogicalRewriteMappingWrite" "Waiting for a write of mapping data during a logical rewrite."
-WAIT_EVENT_LOGICAL_REWRITE_SYNC "LogicalRewriteSync" "Waiting for logical rewrite mappings to reach durable storage."
-WAIT_EVENT_LOGICAL_REWRITE_TRUNCATE "LogicalRewriteTruncate" "Waiting for truncate of mapping data during a logical rewrite."
-WAIT_EVENT_LOGICAL_REWRITE_WRITE "LogicalRewriteWrite" "Waiting for a write of logical rewrite mappings."
-WAIT_EVENT_RELATION_MAP_READ "RelationMapRead" "Waiting for a read of the relation map file."
-WAIT_EVENT_RELATION_MAP_REPLACE "RelationMapReplace" "Waiting for durable replacement of a relation map file."
-WAIT_EVENT_RELATION_MAP_WRITE "RelationMapWrite" "Waiting for a write to the relation map file."
-WAIT_EVENT_REORDER_BUFFER_READ "ReorderBufferRead" "Waiting for a read during reorder buffer management."
-WAIT_EVENT_REORDER_BUFFER_WRITE "ReorderBufferWrite" "Waiting for a write during reorder buffer management."
-WAIT_EVENT_REORDER_LOGICAL_MAPPING_READ "ReorderLogicalMappingRead" "Waiting for a read of a logical mapping during reorder buffer management."
-WAIT_EVENT_REPLICATION_SLOT_READ "ReplicationSlotRead" "Waiting for a read from a replication slot control file."
-WAIT_EVENT_REPLICATION_SLOT_RESTORE_SYNC "ReplicationSlotRestoreSync" "Waiting for a replication slot control file to reach durable storage while restoring it to memory."
-WAIT_EVENT_REPLICATION_SLOT_SYNC "ReplicationSlotSync" "Waiting for a replication slot control file to reach durable storage."
-WAIT_EVENT_REPLICATION_SLOT_WRITE "ReplicationSlotWrite" "Waiting for a write to a replication slot control file."
-WAIT_EVENT_SLRU_FLUSH_SYNC "SlruFlushSync" "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown."
-WAIT_EVENT_SLRU_READ "SlruRead" "Waiting for a read of an SLRU page."
-WAIT_EVENT_SLRU_SYNC "SlruSync" "Waiting for SLRU data to reach durable storage following a page write."
-WAIT_EVENT_SLRU_WRITE "SlruWrite" "Waiting for a write of an SLRU page."
-WAIT_EVENT_SNAPBUILD_READ "SnapbuildRead" "Waiting for a read of a serialized historical catalog snapshot."
-WAIT_EVENT_SNAPBUILD_SYNC "SnapbuildSync" "Waiting for a serialized historical catalog snapshot to reach durable storage."
-WAIT_EVENT_SNAPBUILD_WRITE "SnapbuildWrite" "Waiting for a write of a serialized historical catalog snapshot."
-WAIT_EVENT_TIMELINE_HISTORY_FILE_SYNC "TimelineHistoryFileSync" "Waiting for a timeline history file received via streaming replication to reach durable storage."
-WAIT_EVENT_TIMELINE_HISTORY_FILE_WRITE "TimelineHistoryFileWrite" "Waiting for a write of a timeline history file received via streaming replication."
-WAIT_EVENT_TIMELINE_HISTORY_READ "TimelineHistoryRead" "Waiting for a read of a timeline history file."
-WAIT_EVENT_TIMELINE_HISTORY_SYNC "TimelineHistorySync" "Waiting for a newly created timeline history file to reach durable storage."
-WAIT_EVENT_TIMELINE_HISTORY_WRITE "TimelineHistoryWrite" "Waiting for a write of a newly created timeline history file."
-WAIT_EVENT_TWOPHASE_FILE_READ "TwophaseFileRead" "Waiting for a read of a two phase state file."
-WAIT_EVENT_TWOPHASE_FILE_SYNC "TwophaseFileSync" "Waiting for a two phase state file to reach durable storage."
-WAIT_EVENT_TWOPHASE_FILE_WRITE "TwophaseFileWrite" "Waiting for a write of a two phase state file."
-WAIT_EVENT_VERSION_FILE_WRITE "VersionFileWrite" "Waiting for the version file to be written while creating a database."
-WAIT_EVENT_WALSENDER_TIMELINE_HISTORY_READ "WalsenderTimelineHistoryRead" "Waiting for a read from a timeline history file during a walsender timeline command."
-WAIT_EVENT_WAL_BOOTSTRAP_SYNC "WalBootstrapSync" "Waiting for WAL to reach durable storage during bootstrapping."
-WAIT_EVENT_WAL_BOOTSTRAP_WRITE "WalBootstrapWrite" "Waiting for a write of a WAL page during bootstrapping."
-WAIT_EVENT_WAL_COPY_READ "WalCopyRead" "Waiting for a read when creating a new WAL segment by copying an existing one."
-WAIT_EVENT_WAL_COPY_SYNC "WalCopySync" "Waiting for a new WAL segment created by copying an existing one to reach durable storage."
-WAIT_EVENT_WAL_COPY_WRITE "WalCopyWrite" "Waiting for a write when creating a new WAL segment by copying an existing one."
-WAIT_EVENT_WAL_INIT_SYNC "WalInitSync" "Waiting for a newly initialized WAL file to reach durable storage."
-WAIT_EVENT_WAL_INIT_WRITE "WalInitWrite" "Waiting for a write while initializing a new WAL file."
-WAIT_EVENT_WAL_READ "WalRead" "Waiting for a read from a WAL file."
-WAIT_EVENT_WAL_SYNC "WalSync" "Waiting for a WAL file to reach durable storage. Waiting for data to reach durable storage while assigning a new WAL sync method."
-WAIT_EVENT_WAL_SYNC_METHOD_ASSIGN "WalSyncMethodAssign" "Waiting for data to reach durable storage while assigning a new WAL sync method."
-WAIT_EVENT_WAL_WRITE "WalWrite" "Waiting for a write to a WAL file. Waiting for WAL buffers to be written to disk."
+BasebackupRead "Waiting for base backup to read from a file."
+BasebackupSync "Waiting for data written by a base backup to reach durable storage."
+BasebackupWrite "Waiting for base backup to write to a file."
+BuffileRead "Waiting for a read from a buffered file."
+BuffileWrite "Waiting for a write to a buffered file."
+BuffileTruncate "Waiting for a buffered file to be truncated."
+ControlFileRead "Waiting for a read from the <filename>pg_control</filename> file."
+ControlFileSync "Waiting for the <filename>pg_control</filename> file to reach durable storage. Waiting for an update to the <filename>pg_control</filename> file to reach durable storage."
+ControlFileSyncUpdate "Waiting for an update to the <filename>pg_control</filename> file to reach durable storage."
+ControlFileWrite "Waiting for a write to the <filename>pg_control</filename> file. Waiting for a write to update the <filename>pg_control</filename> file."
+ControlFileWriteUpdate "Waiting for a write to update the <filename>pg_control</filename> file."
+CopyFileRead "Waiting for a read during a file copy operation."
+CopyFileWrite "Waiting for a write during a file copy operation."
+DataFileExtend "Waiting for a relation data file to be extended."
+DataFileFlush "Waiting for a relation data file to reach durable storage."
+DataFileImmediateSync "Waiting for an immediate synchronization of a relation data file to durable storage."
+DataFilePrefetch "Waiting for an asynchronous prefetch from a relation data file."
+DataFileRead "Waiting for a read from a relation data file."
+DataFileSync "Waiting for changes to a relation data file to reach durable storage."
+DataFileTruncate "Waiting for a relation data file to be truncated."
+DataFileWrite "Waiting for a write to a relation data file."
+DsmAllocate "Waiting for a dynamic shared memory segment to be allocated."
+DsmFillZeroWrite "Waiting to fill a dynamic shared memory backing file with zeroes."
+LockFileAddtodatadirRead "Waiting for a read while adding a line to the data directory lock file."
+LockFileAddtodatadirSync "Waiting for data to reach durable storage while adding a line to the data directory lock file."
+LockFileAddtodatadirWrite "Waiting for a write while adding a line to the data directory lock file."
+LockFileCreateRead "Waiting to read while creating the data directory lock file."
+LockFileCreateSync "Waiting for data to reach durable storage while creating the data directory lock file."
+LockFileCreateWrite "Waiting for a write while creating the data directory lock file."
+LockFileRecheckdatadirRead "Waiting for a read during recheck of the data directory lock file."
+LogicalRewriteCheckpointSync "Waiting for logical rewrite mappings to reach durable storage during a checkpoint."
+LogicalRewriteMappingSync "Waiting for mapping data to reach durable storage during a logical rewrite."
+LogicalRewriteMappingWrite "Waiting for a write of mapping data during a logical rewrite."
+LogicalRewriteSync "Waiting for logical rewrite mappings to reach durable storage."
+LogicalRewriteTruncate "Waiting for truncate of mapping data during a logical rewrite."
+LogicalRewriteWrite "Waiting for a write of logical rewrite mappings."
+RelationMapRead "Waiting for a read of the relation map file."
+RelationMapReplace "Waiting for durable replacement of a relation map file."
+RelationMapWrite "Waiting for a write to the relation map file."
+ReorderBufferRead "Waiting for a read during reorder buffer management."
+ReorderBufferWrite "Waiting for a write during reorder buffer management."
+ReorderLogicalMappingRead "Waiting for a read of a logical mapping during reorder buffer management."
+ReplicationSlotRead "Waiting for a read from a replication slot control file."
+ReplicationSlotRestoreSync "Waiting for a replication slot control file to reach durable storage while restoring it to memory."
+ReplicationSlotSync "Waiting for a replication slot control file to reach durable storage."
+ReplicationSlotWrite "Waiting for a write to a replication slot control file."
+SlruFlushSync "Waiting for SLRU data to reach durable storage during a checkpoint or database shutdown."
+SlruRead "Waiting for a read of an SLRU page."
+SlruSync "Waiting for SLRU data to reach durable storage following a page write."
+SlruWrite "Waiting for a write of an SLRU page."
+SnapbuildRead "Waiting for a read of a serialized historical catalog snapshot."
+SnapbuildSync "Waiting for a serialized historical catalog snapshot to reach durable storage."
+SnapbuildWrite "Waiting for a write of a serialized historical catalog snapshot."
+TimelineHistoryFileSync "Waiting for a timeline history file received via streaming replication to reach durable storage."
+TimelineHistoryFileWrite "Waiting for a write of a timeline history file received via streaming replication."
+TimelineHistoryRead "Waiting for a read of a timeline history file."
+TimelineHistorySync "Waiting for a newly created timeline history file to reach durable storage."
+TimelineHistoryWrite "Waiting for a write of a newly created timeline history file."
+TwophaseFileRead "Waiting for a read of a two phase state file."
+TwophaseFileSync "Waiting for a two phase state file to reach durable storage."
+TwophaseFileWrite "Waiting for a write of a two phase state file."
+VersionFileWrite "Waiting for the version file to be written while creating a database."
+WalsenderTimelineHistoryRead "Waiting for a read from a timeline history file during a walsender timeline command."
+WalBootstrapSync "Waiting for WAL to reach durable storage during bootstrapping."
+WalBootstrapWrite "Waiting for a write of a WAL page during bootstrapping."
+WalCopyRead "Waiting for a read when creating a new WAL segment by copying an existing one."
+WalCopySync "Waiting for a new WAL segment created by copying an existing one to reach durable storage."
+WalCopyWrite "Waiting for a write when creating a new WAL segment by copying an existing one."
+WalInitSync "Waiting for a newly initialized WAL file to reach durable storage."
+WalInitWrite "Waiting for a write while initializing a new WAL file."
+WalRead "Waiting for a read from a WAL file."
+WalSync "Waiting for a WAL file to reach durable storage. Waiting for data to reach durable storage while assigning a new WAL sync method."
+WalSyncMethodAssign "Waiting for data to reach durable storage while assigning a new WAL sync method."
+WalWrite "Waiting for a write to a WAL file. Waiting for WAL buffers to be written to disk."
#
@@ -252,7 +252,7 @@ WAIT_EVENT_WAL_WRITE "WalWrite" "Waiting for a write to a WAL file. Waiting for
Section: ClassName - WaitEventBufferPin
-WAIT_EVENT_BUFFER_PIN "BufferPin" "Waiting to acquire an exclusive pin on a buffer."
+BufferPin "Waiting to acquire an exclusive pin on a buffer."
#
@@ -261,7 +261,7 @@ WAIT_EVENT_BUFFER_PIN "BufferPin" "Waiting to acquire an exclusive pin on a buff
Section: ClassName - WaitEventExtension
-WAIT_EVENT_EXTENSION "Extension" "Waiting in an extension."
+Extension "Waiting in an extension."
#
# Wait events - LWLock
@@ -272,81 +272,81 @@ WAIT_EVENT_EXTENSION "Extension" "Waiting in an extension."
Section: ClassName - WaitEventLWLock
-WAIT_EVENT_DOCONLY "ShmemIndex" "Waiting to find or allocate space in shared memory."
-WAIT_EVENT_DOCONLY "OidGen" "Waiting to allocate a new OID."
-WAIT_EVENT_DOCONLY "XidGen" "Waiting to allocate a new transaction ID."
-WAIT_EVENT_DOCONLY "ProcArray" "Waiting to access the shared per-process data structures (typically, to get a snapshot or report a session's transaction ID)."
-WAIT_EVENT_DOCONLY "SInvalRead" "Waiting to retrieve messages from the shared catalog invalidation queue."
-WAIT_EVENT_DOCONLY "SInvalWrite" "Waiting to add a message to the shared catalog invalidation queue."
-WAIT_EVENT_DOCONLY "WALBufMapping" "Waiting to replace a page in WAL buffers."
-WAIT_EVENT_DOCONLY "WALWrite" "Waiting for WAL buffers to be written to disk."
-WAIT_EVENT_DOCONLY "ControlFile" "Waiting to read or update the <filename>pg_control</filename> file or create a new WAL file."
-WAIT_EVENT_DOCONLY "XactSLRU" "Waiting to access the transaction status SLRU cache."
-WAIT_EVENT_DOCONLY "SubtransSLRU" "Waiting to access the sub-transaction SLRU cache."
-WAIT_EVENT_DOCONLY "MultiXactGen" "Waiting to read or update shared multixact state."
-WAIT_EVENT_DOCONLY "MultiXactOffsetSLRU" "Waiting to access the multixact offset SLRU cache."
-WAIT_EVENT_DOCONLY "MultiXactMemberSLRU" "Waiting to access the multixact member SLRU cache."
-WAIT_EVENT_DOCONLY "RelCacheInit" "Waiting to read or update a <filename>pg_internal.init</filename> relation cache initialization file."
-WAIT_EVENT_DOCONLY "CheckpointerComm" "Waiting to manage fsync requests."
-WAIT_EVENT_DOCONLY "TwoPhaseState" "Waiting to read or update the state of prepared transactions."
-WAIT_EVENT_DOCONLY "TablespaceCreate" "Waiting to create or drop a tablespace."
-WAIT_EVENT_DOCONLY "BtreeVacuum" "Waiting to read or update vacuum-related information for a B-tree index."
-WAIT_EVENT_DOCONLY "AddinShmemInit" "Waiting to manage an extension's space allocation in shared memory."
-WAIT_EVENT_DOCONLY "Autovacuum" "Waiting to read or update the current state of autovacuum workers."
-WAIT_EVENT_DOCONLY "AutovacuumSchedule" "Waiting to ensure that a table selected for autovacuum still needs vacuuming."
-WAIT_EVENT_DOCONLY "SyncScan" "Waiting to select the starting location of a synchronized table scan."
-WAIT_EVENT_DOCONLY "RelationMapping" "Waiting to read or update a <filename>pg_filenode.map</filename> file (used to track the filenode assignments of certain system catalogs)."
-WAIT_EVENT_DOCONLY "NotifySLRU" "Waiting to access the <command>NOTIFY</command> message SLRU cache."
-WAIT_EVENT_DOCONLY "NotifyQueue" "Waiting to read or update <command>NOTIFY</command> messages."
-WAIT_EVENT_DOCONLY "SerializableXactHash" "Waiting to read or update information about serializable transactions."
-WAIT_EVENT_DOCONLY "SerializableFinishedList" "Waiting to access the list of finished serializable transactions."
-WAIT_EVENT_DOCONLY "SerializablePredicateList" "Waiting to access the list of predicate locks held by serializable transactions."
-WAIT_EVENT_DOCONLY "SerialSLRU" "Waiting to access the serializable transaction conflict SLRU cache."
-WAIT_EVENT_DOCONLY "SyncRep" "Waiting to read or update information about the state of synchronous replication."
-WAIT_EVENT_DOCONLY "BackgroundWorker" "Waiting to read or update background worker state."
-WAIT_EVENT_DOCONLY "DynamicSharedMemoryControl" "Waiting to read or update dynamic shared memory allocation information."
-WAIT_EVENT_DOCONLY "AutoFile" "Waiting to update the <filename>postgresql.auto.conf</filename> file."
-WAIT_EVENT_DOCONLY "ReplicationSlotAllocation" "Waiting to allocate or free a replication slot."
-WAIT_EVENT_DOCONLY "ReplicationSlotControl" "Waiting to read or update replication slot state."
-WAIT_EVENT_DOCONLY "CommitTsSLRU" "Waiting to access the commit timestamp SLRU cache."
-WAIT_EVENT_DOCONLY "CommitTs" "Waiting to read or update the last value set for a transaction commit timestamp."
-WAIT_EVENT_DOCONLY "ReplicationOrigin" "Waiting to create, drop or use a replication origin."
-WAIT_EVENT_DOCONLY "MultiXactTruncation" "Waiting to read or truncate multixact information."
-WAIT_EVENT_DOCONLY "OldSnapshotTimeMap" "Waiting to read or update old snapshot control information."
-WAIT_EVENT_DOCONLY "LogicalRepWorker" "Waiting to read or update the state of logical replication workers."
-WAIT_EVENT_DOCONLY "XactTruncation" "Waiting to execute <function>pg_xact_status</function> or update the oldest transaction ID available to it."
-WAIT_EVENT_DOCONLY "WrapLimitsVacuum" "Waiting to update limits on transaction id and multixact consumption."
-WAIT_EVENT_DOCONLY "NotifyQueueTail" "Waiting to update limit on <command>NOTIFY</command> message storage."
+ShmemIndex "Waiting to find or allocate space in shared memory."
+OidGen "Waiting to allocate a new OID."
+XidGen "Waiting to allocate a new transaction ID."
+ProcArray "Waiting to access the shared per-process data structures (typically, to get a snapshot or report a session's transaction ID)."
+SInvalRead "Waiting to retrieve messages from the shared catalog invalidation queue."
+SInvalWrite "Waiting to add a message to the shared catalog invalidation queue."
+WALBufMapping "Waiting to replace a page in WAL buffers."
+WALWrite "Waiting for WAL buffers to be written to disk."
+ControlFile "Waiting to read or update the <filename>pg_control</filename> file or create a new WAL file."
+XactSLRU "Waiting to access the transaction status SLRU cache."
+SubtransSLRU "Waiting to access the sub-transaction SLRU cache."
+MultiXactGen "Waiting to read or update shared multixact state."
+MultiXactOffsetSLRU "Waiting to access the multixact offset SLRU cache."
+MultiXactMemberSLRU "Waiting to access the multixact member SLRU cache."
+RelCacheInit "Waiting to read or update a <filename>pg_internal.init</filename> relation cache initialization file."
+CheckpointerComm "Waiting to manage fsync requests."
+TwoPhaseState "Waiting to read or update the state of prepared transactions."
+TablespaceCreate "Waiting to create or drop a tablespace."
+BtreeVacuum "Waiting to read or update vacuum-related information for a B-tree index."
+AddinShmemInit "Waiting to manage an extension's space allocation in shared memory."
+Autovacuum "Waiting to read or update the current state of autovacuum workers."
+AutovacuumSchedule "Waiting to ensure that a table selected for autovacuum still needs vacuuming."
+SyncScan "Waiting to select the starting location of a synchronized table scan."
+RelationMapping "Waiting to read or update a <filename>pg_filenode.map</filename> file (used to track the filenode assignments of certain system catalogs)."
+NotifySLRU "Waiting to access the <command>NOTIFY</command> message SLRU cache."
+NotifyQueue "Waiting to read or update <command>NOTIFY</command> messages."
+SerializableXactHash "Waiting to read or update information about serializable transactions."
+SerializableFinishedList "Waiting to access the list of finished serializable transactions."
+SerializablePredicateList "Waiting to access the list of predicate locks held by serializable transactions."
+SerialSLRU "Waiting to access the serializable transaction conflict SLRU cache."
+SyncRep "Waiting to read or update information about the state of synchronous replication."
+BackgroundWorker "Waiting to read or update background worker state."
+DynamicSharedMemoryControl "Waiting to read or update dynamic shared memory allocation information."
+AutoFile "Waiting to update the <filename>postgresql.auto.conf</filename> file."
+ReplicationSlotAllocation "Waiting to allocate or free a replication slot."
+ReplicationSlotControl "Waiting to read or update replication slot state."
+CommitTsSLRU "Waiting to access the commit timestamp SLRU cache."
+CommitTs "Waiting to read or update the last value set for a transaction commit timestamp."
+ReplicationOrigin "Waiting to create, drop or use a replication origin."
+MultiXactTruncation "Waiting to read or truncate multixact information."
+OldSnapshotTimeMap "Waiting to read or update old snapshot control information."
+LogicalRepWorker "Waiting to read or update the state of logical replication workers."
+XactTruncation "Waiting to execute <function>pg_xact_status</function> or update the oldest transaction ID available to it."
+WrapLimitsVacuum "Waiting to update limits on transaction id and multixact consumption."
+NotifyQueueTail "Waiting to update limit on <command>NOTIFY</command> message storage."
-WAIT_EVENT_DOCONLY "XactBuffer" "Waiting for I/O on a transaction status SLRU buffer."
-WAIT_EVENT_DOCONLY "CommitTsBuffer" "Waiting for I/O on a commit timestamp SLRU buffer."
-WAIT_EVENT_DOCONLY "SubtransBuffer" "Waiting for I/O on a sub-transaction SLRU buffer."
-WAIT_EVENT_DOCONLY "MultiXactOffsetBuffer" "Waiting for I/O on a multixact offset SLRU buffer."
-WAIT_EVENT_DOCONLY "MultiXactMemberBuffer" "Waiting for I/O on a multixact member SLRU buffer."
-WAIT_EVENT_DOCONLY "NotifyBuffer" "Waiting for I/O on a <command>NOTIFY</command> message SLRU buffer."
-WAIT_EVENT_DOCONLY "SerialBuffer" "Waiting for I/O on a serializable transaction conflict SLRU buffer."
-WAIT_EVENT_DOCONLY "WALInsert" "Waiting to insert WAL data into a memory buffer."
-WAIT_EVENT_DOCONLY "BufferContent" "Waiting to access a data page in memory."
-WAIT_EVENT_DOCONLY "ReplicationOriginState" "Waiting to read or update the progress of one replication origin."
-WAIT_EVENT_DOCONLY "ReplicationSlotIO" "Waiting for I/O on a replication slot."
-WAIT_EVENT_DOCONLY "LockFastPath" "Waiting to read or update a process' fast-path lock information."
-WAIT_EVENT_DOCONLY "BufferMapping" "Waiting to associate a data block with a buffer in the buffer pool."
-WAIT_EVENT_DOCONLY "LockManager" "Waiting to read or update information about <quote>heavyweight</quote> locks."
-WAIT_EVENT_DOCONLY "PredicateLockManager" "Waiting to access predicate lock information used by serializable transactions."
-WAIT_EVENT_DOCONLY "ParallelHashJoin" "Waiting to synchronize workers during Parallel Hash Join plan execution."
-WAIT_EVENT_DOCONLY "ParallelQueryDSA" "Waiting for parallel query dynamic shared memory allocation."
-WAIT_EVENT_DOCONLY "PerSessionDSA" "Waiting for parallel query dynamic shared memory allocation."
-WAIT_EVENT_DOCONLY "PerSessionRecordType" "Waiting to access a parallel query's information about composite types."
-WAIT_EVENT_DOCONLY "PerSessionRecordTypmod" "Waiting to access a parallel query's information about type modifiers that identify anonymous record types."
-WAIT_EVENT_DOCONLY "SharedTupleStore" "Waiting to access a shared tuple store during parallel query."
-WAIT_EVENT_DOCONLY "SharedTidBitmap" "Waiting to access a shared TID bitmap during a parallel bitmap index scan."
-WAIT_EVENT_DOCONLY "ParallelAppend" "Waiting to choose the next subplan during Parallel Append plan execution."
-WAIT_EVENT_DOCONLY "PerXactPredicateList" "Waiting to access the list of predicate locks held by the current serializable transaction during a parallel query."
-WAIT_EVENT_DOCONLY "PgStatsDSA" "Waiting for stats dynamic shared memory allocator access."
-WAIT_EVENT_DOCONLY "PgStatsHash" "Waiting for stats shared memory hash table access."
-WAIT_EVENT_DOCONLY "PgStatsData" "Waiting for shared memory stats data access."
-WAIT_EVENT_DOCONLY "LogicalRepLauncherDSA" "Waiting to access logical replication launcher's dynamic shared memory allocator."
-WAIT_EVENT_DOCONLY "LogicalRepLauncherHash" "Waiting to access logical replication launcher's shared hash table."
+XactBuffer "Waiting for I/O on a transaction status SLRU buffer."
+CommitTsBuffer "Waiting for I/O on a commit timestamp SLRU buffer."
+SubtransBuffer "Waiting for I/O on a sub-transaction SLRU buffer."
+MultiXactOffsetBuffer "Waiting for I/O on a multixact offset SLRU buffer."
+MultiXactMemberBuffer "Waiting for I/O on a multixact member SLRU buffer."
+NotifyBuffer "Waiting for I/O on a <command>NOTIFY</command> message SLRU buffer."
+SerialBuffer "Waiting for I/O on a serializable transaction conflict SLRU buffer."
+WALInsert "Waiting to insert WAL data into a memory buffer."
+BufferContent "Waiting to access a data page in memory."
+ReplicationOriginState "Waiting to read or update the progress of one replication origin."
+ReplicationSlotIO "Waiting for I/O on a replication slot."
+LockFastPath "Waiting to read or update a process' fast-path lock information."
+BufferMapping "Waiting to associate a data block with a buffer in the buffer pool."
+LockManager "Waiting to read or update information about <quote>heavyweight</quote> locks."
+PredicateLockManager "Waiting to access predicate lock information used by serializable transactions."
+ParallelHashJoin "Waiting to synchronize workers during Parallel Hash Join plan execution."
+ParallelQueryDSA "Waiting for parallel query dynamic shared memory allocation."
+PerSessionDSA "Waiting for parallel query dynamic shared memory allocation."
+PerSessionRecordType "Waiting to access a parallel query's information about composite types."
+PerSessionRecordTypmod "Waiting to access a parallel query's information about type modifiers that identify anonymous record types."
+SharedTupleStore "Waiting to access a shared tuple store during parallel query."
+SharedTidBitmap "Waiting to access a shared TID bitmap during a parallel bitmap index scan."
+ParallelAppend "Waiting to choose the next subplan during Parallel Append plan execution."
+PerXactPredicateList "Waiting to access the list of predicate locks held by the current serializable transaction during a parallel query."
+PgStatsDSA "Waiting for stats dynamic shared memory allocator access."
+PgStatsHash "Waiting for stats shared memory hash table access."
+PgStatsData "Waiting for shared memory stats data access."
+LogicalRepLauncherDSA "Waiting to access logical replication launcher's dynamic shared memory allocator."
+LogicalRepLauncherHash "Waiting to access logical replication launcher's shared hash table."
#
# Wait even - Lock
@@ -357,15 +357,15 @@ WAIT_EVENT_DOCONLY "LogicalRepLauncherHash" "Waiting to access logical replicati
Section: ClassName - WaitEventLock
-WAIT_EVENT_DOCONLY "relation" "Waiting to acquire a lock on a relation."
-WAIT_EVENT_DOCONLY "extend" "Waiting to extend a relation."
-WAIT_EVENT_DOCONLY "frozenid" "Waiting to update <structname>pg_database</structname>.<structfield>datfrozenxid</structfield> and <structname>pg_database</structname>.<structfield>datminmxid</structfield>."
-WAIT_EVENT_DOCONLY "page" "Waiting to acquire a lock on a page of a relation."
-WAIT_EVENT_DOCONLY "tuple" "Waiting to acquire a lock on a tuple."
-WAIT_EVENT_DOCONLY "transactionid" "Waiting for a transaction to finish."
-WAIT_EVENT_DOCONLY "virtualxid" "Waiting to acquire a virtual transaction ID lock; see <xref linkend="transaction-id"/>."
-WAIT_EVENT_DOCONLY "spectoken" "Waiting to acquire a speculative insertion lock."
-WAIT_EVENT_DOCONLY "object" "Waiting to acquire a lock on a non-relation database object."
-WAIT_EVENT_DOCONLY "userlock" "Waiting to acquire a user lock."
-WAIT_EVENT_DOCONLY "advisory" "Waiting to acquire an advisory user lock."
-WAIT_EVENT_DOCONLY "applytransaction" "Waiting to acquire a lock on a remote transaction being applied by a logical replication subscriber."
+relation "Waiting to acquire a lock on a relation."
+extend "Waiting to extend a relation."
+frozenid "Waiting to update <structname>pg_database</structname>.<structfield>datfrozenxid</structfield> and <structname>pg_database</structname>.<structfield>datminmxid</structfield>."
+page "Waiting to acquire a lock on a page of a relation."
+tuple "Waiting to acquire a lock on a tuple."
+transactionid "Waiting for a transaction to finish."
+virtualxid "Waiting to acquire a virtual transaction ID lock; see <xref linkend="transaction-id"/>."
+spectoken "Waiting to acquire a speculative insertion lock."
+object "Waiting to acquire a lock on a non-relation database object."
+userlock "Waiting to acquire a user lock."
+advisory "Waiting to acquire an advisory user lock."
+applytransaction "Waiting to acquire a lock on a remote transaction being applied by a logical replication subscriber."
--
2.40.1
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