The postcopy thread names on dest QEMU are slightly confusing, partly I'll
need to blame myself on 36f62f11e4 ("migration: Postcopy preemption
preparation on channel creation"). E.g., "fault-fast" reads like a fast
version of "fault-default", but it's actually the fast version of
"postcopy/listen".
Taking this chance, rename all the migration threads with proper rules.
Considering we only have 15 chars usable, prefix all threads with "mig/",
meanwhile identify src/dst threads properly this time. So now most thread
names will look like "mig/DIR/xxx", where DIR will be "src"/"dst", except
the bg-snapshot thread which doesn't have a direction.
For multifd threads, making them "mig/{src|dst}/{send|recv}_%d".
We used to have "live_migration" thread for a very long time, now it's
called "mig/src/main". We may hope to have "mig/dst/main" soon but not
yet.
Signed-off-by: Peter Xu <pet...@redhat.com>
---
migration/colo.c | 2 +-
migration/migration.c | 6 +++---
migration/multifd.c | 6 +++---
migration/postcopy-ram.c | 4 ++--
migration/savevm.c | 2 +-
5 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/migration/colo.c b/migration/colo.c
index f96c2ee069..6449490221 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -935,7 +935,7 @@ void coroutine_fn colo_incoming_co(void)
assert(bql_locked());
assert(migration_incoming_colo_enabled());
- qemu_thread_create(&th, "COLO incoming", colo_process_incoming_thread,
+ qemu_thread_create(&th, "mig/dst/colo", colo_process_incoming_thread,
mis, QEMU_THREAD_JOINABLE);
mis->colo_incoming_co = qemu_coroutine_self();
diff --git a/migration/migration.c b/migration/migration.c
index e1b269624c..d41e00ed4c 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2408,7 +2408,7 @@ static int open_return_path_on_source(MigrationState *ms)
trace_open_return_path_on_source();
- qemu_thread_create(&ms->rp_state.rp_thread, "return path",
+ qemu_thread_create(&ms->rp_state.rp_thread, "mig/src/rp-thr",
source_return_path_thread, ms, QEMU_THREAD_JOINABLE);
ms->rp_state.rp_thread_created = true;
@@ -3747,10 +3747,10 @@ void migrate_fd_connect(MigrationState *s, Error
*error_in)
}
if (migrate_background_snapshot()) {
- qemu_thread_create(&s->thread, "bg_snapshot",
+ qemu_thread_create(&s->thread, "mig/snapshot",
bg_migration_thread, s, QEMU_THREAD_JOINABLE);
} else {
- qemu_thread_create(&s->thread, "live_migration",
+ qemu_thread_create(&s->thread, "mig/src/main",
migration_thread, s, QEMU_THREAD_JOINABLE);
}
s->migration_thread_running = true;
diff --git a/migration/multifd.c b/migration/multifd.c
index f317bff077..7afc0965f6 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -1059,7 +1059,7 @@ static bool multifd_tls_channel_connect(MultiFDSendParams
*p,
args->p = p;
p->tls_thread_created = true;
- qemu_thread_create(&p->tls_thread, "multifd-tls-handshake-worker",
+ qemu_thread_create(&p->tls_thread, "mig/src/tls",
multifd_tls_handshake_thread, args,
QEMU_THREAD_JOINABLE);
return true;
@@ -1185,7 +1185,7 @@ bool multifd_send_setup(void)
} else {
p->iov = g_new0(struct iovec, page_count);
}
- p->name = g_strdup_printf("multifdsend_%d", i);
+ p->name = g_strdup_printf("mig/src/send_%d", i);
p->page_size = qemu_target_page_size();
p->page_count = page_count;
p->write_flags = 0;
@@ -1601,7 +1601,7 @@ int multifd_recv_setup(Error **errp)
+ sizeof(uint64_t) * page_count;
p->packet = g_malloc0(p->packet_len);
}
- p->name = g_strdup_printf("multifdrecv_%d", i);
+ p->name = g_strdup_printf("mig/dst/recv_%d", i);
p->iov = g_new0(struct iovec, page_count);
p->normal = g_new0(ram_addr_t, page_count);
p->zero = g_new0(ram_addr_t, page_count);
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index 3419779548..97701e6bb2 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -1238,7 +1238,7 @@ int postcopy_ram_incoming_setup(MigrationIncomingState
*mis)
return -1;
}
- postcopy_thread_create(mis, &mis->fault_thread, "fault-default",
+ postcopy_thread_create(mis, &mis->fault_thread, "mig/dst/fault",
postcopy_ram_fault_thread, QEMU_THREAD_JOINABLE);
mis->have_fault_thread = true;
@@ -1258,7 +1258,7 @@ int postcopy_ram_incoming_setup(MigrationIncomingState
*mis)
* This thread needs to be created after the temp pages because
* it'll fetch RAM_CHANNEL_POSTCOPY PostcopyTmpPage immediately.
*/
- postcopy_thread_create(mis, &mis->postcopy_prio_thread, "fault-fast",
+ postcopy_thread_create(mis, &mis->postcopy_prio_thread,
"mig/dst/preempt",
postcopy_preempt_thread, QEMU_THREAD_JOINABLE);
mis->preempt_thread_status = PREEMPT_THREAD_CREATED;
}
diff --git a/migration/savevm.c b/migration/savevm.c
index c621f2359b..e71410d8c1 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2129,7 +2129,7 @@ static int
loadvm_postcopy_handle_listen(MigrationIncomingState *mis)
}
mis->have_listen_thread = true;
- postcopy_thread_create(mis, &mis->listen_thread, "postcopy/listen",
+ postcopy_thread_create(mis, &mis->listen_thread, "mig/dst/listen",
postcopy_ram_listen_thread, QEMU_THREAD_DETACHED);
trace_loadvm_postcopy_handle_listen("return");
--
2.45.0
