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| author | Thomas Munro <tmunro@postgresql.org> | 2020-01-31 17:21:47 +1300 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2020-01-31 17:29:41 +1300 |
| commit | ef02fb15a35ab7bd74a79afebf35572ed82b5e9f (patch) | |
| tree | 83a6c8db87805bbb7e4d8fea7f865f448c3dcd14 /src/backend/storage/ipc/dsm_impl.c | |
| parent | d061ea21fc1cc1c657bb5c742f5c4a1564e82ee2 (diff) | |
| download | postgresql-ef02fb15a35ab7bd74a79afebf35572ed82b5e9f.tar.gz postgresql-ef02fb15a35ab7bd74a79afebf35572ed82b5e9f.zip | |
Report time spent in posix_fallocate() as a wait event.
When allocating DSM segments with posix_fallocate() on Linux (see commit
899bd785), report this activity as a wait event exactly as we would if
we were using file-backed DSM rather than shm_open()-backed DSM.
Author: Thomas Munro
Discussion: https://postgr.es/m/CA%2BhUKGKCSh4GARZrJrQZwqs5SYp0xDMRr9Bvb%2BHQzJKvRgL6ZA%40mail.gmail.com
Diffstat (limited to 'src/backend/storage/ipc/dsm_impl.c')
| -rw-r--r-- | src/backend/storage/ipc/dsm_impl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/backend/storage/ipc/dsm_impl.c b/src/backend/storage/ipc/dsm_impl.c index 3f7a8a4fa08..138bdec47e9 100644 --- a/src/backend/storage/ipc/dsm_impl.c +++ b/src/backend/storage/ipc/dsm_impl.c @@ -371,10 +371,12 @@ dsm_impl_posix_resize(int fd, off_t size) * interrupt pending. This avoids the possibility of looping forever * if another backend is repeatedly trying to interrupt us. */ + pgstat_report_wait_start(WAIT_EVENT_DSM_FILL_ZERO_WRITE); do { rc = posix_fallocate(fd, 0, size); } while (rc == EINTR && !(ProcDiePending || QueryCancelPending)); + pgstat_report_wait_end(); /* * The caller expects errno to be set, but posix_fallocate() doesn't |