Hi,
On 9/5/23 7:44 AM, Michael Paquier wrote:
On Mon, Sep 04, 2023 at 02:14:58PM +0200, Drouvot, Bertrand wrote:
# Build the descriptions. There are in camel-case.
# LWLock and Lock classes do not need any modifications.
Nit: 2 whitespaces before "There are in camel"
The whitespaces are intentional,
Oh ok, out of curiosity, why are 2 whitespaces intentional?
Then, the only diff is:
< Client,WalSenderWaitWal,Waiting for WAL to be flushed in WAL sender process
---
Client,WalSenderWaitForWAL,Waiting for WAL to be flushed in WAL sender process
That said, it looks good to me.
Ah, good catch. I did not think about cross-checking the data in the
new view before and after the patch set. This rename needs to happen
in 0001.
Please find v5 attached. How does that look?
Thanks!
That looks good. I just noticed that v5 did re-introduce the "issue" that
was fixed in 00e49233a9.
Also, v5 needs a rebase due to f691f5b80a.
Attaching v6 taking care of the 2 points mentioned above.
Regards,
--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com
From 6a94fc1a00ae784b12e15f498a5afba4020377f9 Mon Sep 17 00:00:00 2001
From: Michael Paquier <mich...@paquier.xyz>
Date: Tue, 5 Sep 2023 14:32:37 +0900
Subject: [PATCH v6 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/replication/walsender.c | 2 +-
src/backend/storage/ipc/shm_mq.c | 6 +-
.../utils/activity/wait_event_names.txt | 90 +++++++++----------
4 files changed, 50 insertions(+), 50 deletions(-)
3.2% src/backend/storage/ipc/
93.3% src/backend/utils/activity/
3.3% src/backend/
diff --git a/src/backend/libpq/pqmq.c b/src/backend/libpq/pqmq.c
index 253181f47a..38b042804c 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/replication/walsender.c
b/src/backend/replication/walsender.c
index 46e48492ac..e250b0567e 100644
--- a/src/backend/replication/walsender.c
+++ b/src/backend/replication/walsender.c
@@ -1654,7 +1654,7 @@ WalSndWaitForWal(XLogRecPtr loc)
if (pq_is_send_pending())
wakeEvents |= WL_SOCKET_WRITEABLE;
- WalSndWait(wakeEvents, sleeptime,
WAIT_EVENT_WAL_SENDER_WAIT_WAL);
+ WalSndWait(wakeEvents, sleeptime,
WAIT_EVENT_WAL_SENDER_WAIT_FOR_WAL);
}
/* reactivate latch so WalSndLoop knows to continue */
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 06a1a3df9b..ca28d9e764 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_FOR_WAL WalSenderWaitForWal "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 link
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 r
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 lock
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."
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 data
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 a
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 phas
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."
-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."
+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."
+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."
#
--
2.34.1
From 6e32a44cf27ddde43445a67a2b3f5e2adad6170c Mon Sep 17 00:00:00 2001
From: Michael Paquier <mich...@paquier.xyz>
Date: Tue, 5 Sep 2023 14:39:58 +0900
Subject: [PATCH v6 2/2] Remove column for wait event names in
wait_event_names.txt
This file is now made of two columns, removing the column listing the
descriptions for each wait event class:
- Typedef enum definition, without the prefix "WAIT_EVENT_", for
simplicity.
- Description in the documentation.
The wait event names are generated from the enum objects in camelcase, with
the underscores removed.
---
.../activity/generate-wait_event_types.pl | 40 +-
.../utils/activity/wait_event_names.txt | 502 +++++++++---------
2 files changed, 279 insertions(+), 263 deletions(-)
100.0% src/backend/utils/activity/
diff --git a/src/backend/utils/activity/generate-wait_event_types.pl
b/src/backend/utils/activity/generate-wait_event_types.pl
index 23eb3b1f57..046be2cb70 100644
--- a/src/backend/utils/activity/generate-wait_event_types.pl
+++ b/src/backend/utils/activity/generate-wait_event_types.pl
@@ -65,29 +65,45 @@ while (<$wait_event_names>)
push(@lines, $section_name . "\t" . $_);
}
-# Sort the lines based on the third column.
+# Sort the lines based on the second column.
# uc() is being used to force the comparison to be case-insensitive.
my @lines_sorted =
- sort { uc((split(/\t/, $a))[2]) cmp uc((split(/\t/, $b))[2]) } @lines;
+ sort { uc((split(/\t/, $a))[1]) cmp uc((split(/\t/, $b))[1]) } @lines;
# Read the sorted lines and populate the hash table
foreach my $line (@lines_sorted)
{
die "unable to parse wait_event_names.txt for line $line\n"
- unless $line =~ /^(\w+)\t+(\w+)\t+(\w+)\t+("\w.*\.")$/;
+ unless $line =~ /^(\w+)\t+(\w+)\t+("\w.*\.")$/;
- ( my $waitclassname,
- my $waiteventenumname,
- my $waiteventdescription,
- my $waitevendocsentence) = split(/\t/, $line);
+ (my $waitclassname, my $waiteventname, my $waitevendocsentence) =
+ split(/\t/, $line);
+ # Generate the element name for the enums based on the
+ # description. The C symbols are prefixed with "WAIT_EVENT_".
+ my $waiteventenumname = "WAIT_EVENT_$waiteventname";
+
+ # Build the descriptions. These are in camel-case.
+ # LWLock and Lock classes do not need any modifications.
+ my $waiteventdescription = '';
+ if ( $waitclassname eq 'WaitEventLWLock'
+ || $waitclassname eq 'WaitEventLock')
+ {
+ $waiteventdescription = $waiteventname;
+ }
+ else
+ {
+ my @waiteventparts = split("_", $waiteventname);
+ foreach my $waiteventpart (@waiteventparts)
+ {
+ $waiteventdescription .= substr($waiteventpart, 0, 1)
+ . lc(substr($waiteventpart, 1,
length($waiteventpart)));
+ }
+ }
+
+ # Store the event into the list for each class.
my @waiteventlist =
[ $waiteventenumname, $waiteventdescription, $waitevendocsentence ];
- my $trimmedwaiteventname = $waiteventenumname;
- $trimmedwaiteventname =~ s/^WAIT_EVENT_//;
-
- die "wait event names must start with 'WAIT_EVENT_'"
- if ($trimmedwaiteventname eq $waiteventenumname);
push(@{ $hashwe{$waitclassname} }, @waiteventlist);
}
diff --git a/src/backend/utils/activity/wait_event_names.txt
b/src/backend/utils/activity/wait_event_names.txt
index ca28d9e764..9c5fdeb3ca 100644
--- a/src/backend/utils/activity/wait_event_names.txt
+++ b/src/backend/utils/activity/wait_event_names.txt
@@ -7,6 +7,11 @@
# This list serves as the basis for generating source and documentation files
# related to wait events.
#
+# This file defines one wait event per line, with the following
+# tab-separated fields:
+#
+# "Typedef enum definitions" "description in the docs"
+#
# The files generated from this one are:
#
# src/backend/utils/activity/wait_event_types.h
@@ -18,11 +23,6 @@
# src/backend/utils/activity/wait_event_types.sgml
# SGML tables of wait events for inclusion in the documentation.
#
-# 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"
-#
# 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."
+ARCHIVER_MAIN "Waiting in main loop of archiver process."
+AUTOVACUUM_MAIN "Waiting in main loop of autovacuum launcher process."
+BGWRITER_HIBERNATE "Waiting in background writer process, hibernating."
+BGWRITER_MAIN "Waiting in main loop of background writer process."
+CHECKPOINTER_MAIN "Waiting in main loop of checkpointer process."
+LOGICAL_APPLY_MAIN "Waiting in main loop of logical replication apply
process."
+LOGICAL_LAUNCHER_MAIN "Waiting in main loop of logical replication launcher
process."
+LOGICAL_PARALLEL_APPLY_MAIN "Waiting in main loop of logical replication
parallel apply process."
+RECOVERY_WAL_STREAM "Waiting in main loop of startup process for WAL to
arrive, during streaming recovery."
+SYSLOGGER_MAIN "Waiting in main loop of syslogger process."
+WAL_RECEIVER_MAIN "Waiting in main loop of WAL receiver process."
+WAL_SENDER_MAIN "Waiting in main loop of WAL sender process."
+WAL_WRITER_MAIN "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 pro
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_FOR_WAL WalSenderWaitForWal "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."
+CLIENT_READ "Waiting to read data from the client."
+CLIENT_WRITE "Waiting to write data to the client."
+GSS_OPEN_SERVER "Waiting to read data from the client while
establishing a GSSAPI session."
+LIBPQWALRECEIVER_CONNECT "Waiting in WAL receiver to establish
connection to remote server."
+LIBPQWALRECEIVER_RECEIVE "Waiting in WAL receiver to receive data from
remote server."
+SSL_OPEN_SERVER "Waiting for SSL while attempting connection."
+WAL_SENDER_WAIT_FOR_WAL "Waiting for WAL to be flushed in WAL sender
process."
+WAL_SENDER_WRITE_DATA "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 wh
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."
-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."
+APPEND_READY "Waiting for subplan nodes of an <literal>Append</literal> plan
node to be ready."
+ARCHIVE_CLEANUP_COMMAND "Waiting for <xref
linkend="guc-archive-cleanup-command"/> to complete."
+ARCHIVE_COMMAND "Waiting for <xref linkend="guc-archive-command"/> to
complete."
+BACKEND_TERMINATION "Waiting for the termination of another backend."
+BACKUP_WAIT_WAL_ARCHIVE "Waiting for WAL files required for a backup to
be successfully archived."
+BGWORKER_SHUTDOWN "Waiting for background worker to shut down."
+BGWORKER_STARTUP "Waiting for background worker to start up."
+BTREE_PAGE "Waiting for the page number needed to continue a parallel
B-tree scan to become available."
+BUFFER_IO "Waiting for buffer I/O to complete."
+CHECKPOINT_DONE "Waiting for a checkpoint to complete."
+CHECKPOINT_START "Waiting for a checkpoint to start."
+EXECUTE_GATHER "Waiting for activity from a child process while executing a
<literal>Gather</literal> plan node."
+HASH_BATCH_ALLOCATE "Waiting for an elected Parallel Hash participant to
allocate a hash table."
+HASH_BATCH_ELECT "Waiting to elect a Parallel Hash participant to
allocate a hash table."
+HASH_BATCH_LOAD "Waiting for other Parallel Hash participants to finish
loading a hash table."
+HASH_BUILD_ALLOCATE "Waiting for an elected Parallel Hash participant to
allocate the initial hash table."
+HASH_BUILD_ELECT "Waiting to elect a Parallel Hash participant to
allocate the initial hash table."
+HASH_BUILD_HASH_INNER "Waiting for other Parallel Hash participants to finish
hashing the inner relation."
+HASH_BUILD_HASH_OUTER "Waiting for other Parallel Hash participants to finish
partitioning the outer relation."
+HASH_GROW_BATCHES_DECIDE "Waiting to elect a Parallel Hash participant
to decide on future batch growth."
+HASH_GROW_BATCHES_ELECT "Waiting to elect a Parallel Hash participant
to allocate more batches."
+HASH_GROW_BATCHES_FINISH "Waiting for an elected Parallel Hash
participant to decide on future batch growth."
+HASH_GROW_BATCHES_REALLOCATE "Waiting for an elected Parallel Hash
participant to allocate more batches."
+HASH_GROW_BATCHES_REPARTITION "Waiting for other Parallel Hash participants
to finish repartitioning."
+HASH_GROW_BUCKETS_ELECT "Waiting to elect a Parallel Hash participant
to allocate more buckets."
+HASH_GROW_BUCKETS_REALLOCATE "Waiting for an elected Parallel Hash
participant to finish allocating more buckets."
+HASH_GROW_BUCKETS_REINSERT "Waiting for other Parallel Hash participants
to finish inserting tuples into new buckets."
+LOGICAL_APPLY_SEND_DATA "Waiting for a logical replication leader apply
process to send data to a parallel apply process."
+LOGICAL_PARALLEL_APPLY_STATE_CHANGE "Waiting for a logical replication
parallel apply process to change state."
+LOGICAL_SYNC_DATA "Waiting for a logical replication remote server to
send data for initial table synchronization."
+LOGICAL_SYNC_STATE_CHANGE "Waiting for a logical replication remote
server to change state."
+MESSAGE_QUEUE_INTERNAL "Waiting for another process to be attached to a shared
message queue."
+MESSAGE_QUEUE_PUT_MESSAGE "Waiting to write a protocol message to a
shared message queue."
+MESSAGE_QUEUE_RECEIVE "Waiting to receive bytes from a shared message queue."
+MESSAGE_QUEUE_SEND "Waiting to send bytes to a shared message queue."
+PARALLEL_BITMAP_SCAN "Waiting for parallel bitmap scan to become
initialized."
+PARALLEL_CREATE_INDEX_SCAN "Waiting for parallel <command>CREATE
INDEX</command> workers to finish heap scan."
+PARALLEL_FINISH "Waiting for parallel workers to finish computing."
+PROCARRAY_GROUP_UPDATE "Waiting for the group leader to clear the transaction
ID at end of a parallel operation."
+PROC_SIGNAL_BARRIER "Waiting for a barrier event to be processed by all
backends."
+PROMOTE "Waiting for standby promotion."
+RECOVERY_CONFLICT_SNAPSHOT "Waiting for recovery conflict resolution for a
vacuum cleanup."
+RECOVERY_CONFLICT_TABLESPACE "Waiting for recovery conflict resolution for
dropping a tablespace."
+RECOVERY_END_COMMAND "Waiting for <xref linkend="guc-recovery-end-command"/>
to complete."
+RECOVERY_PAUSE "Waiting for recovery to be resumed."
+REPLICATION_ORIGIN_DROP "Waiting for a replication origin to become
inactive so it can be dropped."
+REPLICATION_SLOT_DROP "Waiting for a replication slot to become inactive so
it can be dropped."
+RESTORE_COMMAND "Waiting for <xref linkend="guc-restore-command"/> to
complete."
+SAFE_SNAPSHOT "Waiting to obtain a valid snapshot for a <literal>READ ONLY
DEFERRABLE</literal> transaction."
+SYNC_REP "Waiting for confirmation from a remote server during
synchronous replication."
+WAL_RECEIVER_EXIT "Waiting for the WAL receiver to exit."
+WAL_RECEIVER_WAIT_START "Waiting for startup process to send initial
data for streaming replication."
+XACT_GROUP_UPDATE "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 up
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."
+BASE_BACKUP_THROTTLE "Waiting during base backup when throttling activity."
+CHECKPOINT_WRITE_DELAY "Waiting between writes while performing a checkpoint."
+PG_SLEEP "Waiting due to a call to <function>pg_sleep</function> or a
sibling function."
+RECOVERY_APPLY_DELAY "Waiting to apply WAL during recovery because of a
delay setting."
+RECOVERY_RETRIEVE_RETRY_INTERVAL "Waiting during recovery when WAL data
is not available from any source (<filename>pg_wal</filename>, archive or
stream)."
+REGISTER_SYNC_REQUEST "Waiting while sending synchronization requests to the
checkpointer, because the request queue is full."
+SPIN_DELAY "Waiting while acquiring a contended spinlock."
+VACUUM_DELAY "Waiting in a cost-based vacuum delay point."
+VACUUM_TRUNCATE "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 lock
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."
-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."
-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."
-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."
+BASEBACKUP_READ "Waiting for base backup to read from a file."
+BASEBACKUP_SYNC "Waiting for data written by a base backup to reach
durable storage."
+BASEBACKUP_WRITE "Waiting for base backup to write to a file."
+BUFFILE_READ "Waiting for a read from a buffered file."
+BUFFILE_WRITE "Waiting for a write to a buffered file."
+BUFFILE_TRUNCATE "Waiting for a buffered file to be truncated."
+CONTROL_FILE_READ "Waiting for a read from the
<filename>pg_control</filename> file."
+CONTROL_FILE_SYNC "Waiting for the <filename>pg_control</filename> file
to reach durable storage."
+CONTROL_FILE_SYNC_UPDATE "Waiting for an update to the
<filename>pg_control</filename> file to reach durable storage."
+CONTROL_FILE_WRITE "Waiting for a write to the
<filename>pg_control</filename> file."
+CONTROL_FILE_WRITE_UPDATE "Waiting for a write to update the
<filename>pg_control</filename> file."
+COPY_FILE_READ "Waiting for a read during a file copy operation."
+COPY_FILE_WRITE "Waiting for a write during a file copy operation."
+DATA_FILE_EXTEND "Waiting for a relation data file to be extended."
+DATA_FILE_FLUSH "Waiting for a relation data file to reach durable
storage."
+DATA_FILE_IMMEDIATE_SYNC "Waiting for an immediate synchronization of a
relation data file to durable storage."
+DATA_FILE_PREFETCH "Waiting for an asynchronous prefetch from a relation
data file."
+DATA_FILE_READ "Waiting for a read from a relation data file."
+DATA_FILE_SYNC "Waiting for changes to a relation data file to reach durable
storage."
+DATA_FILE_TRUNCATE "Waiting for a relation data file to be truncated."
+DATA_FILE_WRITE "Waiting for a write to a relation data file."
+DSM_ALLOCATE "Waiting for a dynamic shared memory segment to be allocated."
+DSM_FILL_ZERO_WRITE "Waiting to fill a dynamic shared memory backing file
with zeroes."
+LOCK_FILE_ADDTODATADIR_READ "Waiting for a read while adding a line to the
data directory lock file."
+LOCK_FILE_ADDTODATADIR_SYNC "Waiting for data to reach durable storage
while adding a line to the data directory lock file."
+LOCK_FILE_ADDTODATADIR_WRITE "Waiting for a write while adding a line to the
data directory lock file."
+LOCK_FILE_CREATE_READ "Waiting to read while creating the data directory lock
file."
+LOCK_FILE_CREATE_SYNC "Waiting for data to reach durable storage while
creating the data directory lock file."
+LOCK_FILE_CREATE_WRITE "Waiting for a write while creating the data directory
lock file."
+LOCK_FILE_RECHECKDATADIR_READ "Waiting for a read during recheck of the data
directory lock file."
+LOGICAL_REWRITE_CHECKPOINT_SYNC "Waiting for logical rewrite mappings
to reach durable storage during a checkpoint."
+LOGICAL_REWRITE_MAPPING_SYNC "Waiting for mapping data to reach durable
storage during a logical rewrite."
+LOGICAL_REWRITE_MAPPING_WRITE "Waiting for a write of mapping data during a
logical rewrite."
+LOGICAL_REWRITE_SYNC "Waiting for logical rewrite mappings to reach durable
storage."
+LOGICAL_REWRITE_TRUNCATE "Waiting for truncate of mapping data during a
logical rewrite."
+LOGICAL_REWRITE_WRITE "Waiting for a write of logical rewrite mappings."
+RELATION_MAP_READ "Waiting for a read of the relation map file."
+RELATION_MAP_REPLACE "Waiting for durable replacement of a relation map
file."
+RELATION_MAP_WRITE "Waiting for a write to the relation map file."
+REORDER_BUFFER_READ "Waiting for a read during reorder buffer management."
+REORDER_BUFFER_WRITE "Waiting for a write during reorder buffer management."
+REORDER_LOGICAL_MAPPING_READ "Waiting for a read of a logical mapping during
reorder buffer management."
+REPLICATION_SLOT_READ "Waiting for a read from a replication slot control
file."
+REPLICATION_SLOT_RESTORE_SYNC "Waiting for a replication slot control file to
reach durable storage while restoring it to memory."
+REPLICATION_SLOT_SYNC "Waiting for a replication slot control file to reach
durable storage."
+REPLICATION_SLOT_WRITE "Waiting for a write to a replication slot control
file."
+SLRU_FLUSH_SYNC "Waiting for SLRU data to reach durable storage during
a checkpoint or database shutdown."
+SLRU_READ "Waiting for a read of an SLRU page."
+SLRU_SYNC "Waiting for SLRU data to reach durable storage following a
page write."
+SLRU_WRITE "Waiting for a write of an SLRU page."
+SNAPBUILD_READ "Waiting for a read of a serialized historical catalog
snapshot."
+SNAPBUILD_SYNC "Waiting for a serialized historical catalog snapshot to reach
durable storage."
+SNAPBUILD_WRITE "Waiting for a write of a serialized historical catalog
snapshot."
+TIMELINE_HISTORY_FILE_SYNC "Waiting for a timeline history file received
via streaming replication to reach durable storage."
+TIMELINE_HISTORY_FILE_WRITE "Waiting for a write of a timeline history file
received via streaming replication."
+TIMELINE_HISTORY_READ "Waiting for a read of a timeline history file."
+TIMELINE_HISTORY_SYNC "Waiting for a newly created timeline history file to
reach durable storage."
+TIMELINE_HISTORY_WRITE "Waiting for a write of a newly created timeline
history file."
+TWOPHASE_FILE_READ "Waiting for a read of a two phase state file."
+TWOPHASE_FILE_SYNC "Waiting for a two phase state file to reach durable
storage."
+TWOPHASE_FILE_WRITE "Waiting for a write of a two phase state file."
+VERSION_FILE_WRITE "Waiting for the version file to be written while
creating a database."
+WALSENDER_TIMELINE_HISTORY_READ "Waiting for a read from a timeline
history file during a walsender timeline command."
+WAL_BOOTSTRAP_SYNC "Waiting for WAL to reach durable storage during
bootstrapping."
+WAL_BOOTSTRAP_WRITE "Waiting for a write of a WAL page during
bootstrapping."
+WAL_COPY_READ "Waiting for a read when creating a new WAL segment by copying
an existing one."
+WAL_COPY_SYNC "Waiting for a new WAL segment created by copying an existing
one to reach durable storage."
+WAL_COPY_WRITE "Waiting for a write when creating a new WAL segment by copying
an existing one."
+WAL_INIT_SYNC "Waiting for a newly initialized WAL file to reach durable
storage."
+WAL_INIT_WRITE "Waiting for a write while initializing a new WAL file."
+WAL_READ "Waiting for a read from a WAL file."
+WAL_SYNC "Waiting for a WAL file to reach durable storage."
+WAL_SYNC_METHOD_ASSIGN "Waiting for data to reach durable storage while
assigning a new WAL sync method."
+WAL_WRITE "Waiting for a write to a WAL file."
#
@@ -252,7 +252,7 @@ WAIT_EVENT_WAL_WRITE WalWrite "Waiting for a
write to a WAL file."
Section: ClassName - WaitEventBufferPin
-WAIT_EVENT_BUFFER_PIN BufferPin "Waiting to acquire an exclusive pin on
a buffer."
+BUFFER_PIN "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 buffer
Section: ClassName - WaitEventExtension
-WAIT_EVENT_DOCONLY Extension "Waiting in an extension."
+Extension "Waiting in an extension."
#
# Wait Events - LWLock
@@ -272,81 +272,81 @@ WAIT_EVENT_DOCONLY 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 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."
-WAIT_EVENT_DOCONLY WaitEventExtension "Waiting to read or update
custom wait events information for extensions."
-
-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."
+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."
+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."
+WaitEventExtension "Waiting to read or update custom wait events
information for extensions."
+
+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 Events - Lock
@@ -357,15 +357,15 @@ WAIT_EVENT_DOCONLY LogicalRepLauncherHash
"Waiting to access logical replication
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."
--
2.34.1
