Hi, Although the pg_stat_activity has no entry for the sys logger and stats collector (because of no shared memory access), the wait events WAIT_EVENT_SYSLOGGER_MAIN and WAIT_EVENT_PGSTAT_MAIN are defined. They seem to be unnecessary. Passing 0 or some other undefined wait event value to the existing calls of WaitLatch and WaitLatchOrSocket instead of WAIT_EVENT_SYSLOGGER_MAIN/WAIT_EVENT_PGSTAT_MAIN, would work. We can delete these wait events and their info from pgstat.c.
I'm sure this is not so critical, but I'm just checking if someone feels that they should be removed or have some other reasons for keeping them. Thoughts? Regards, Bharath Rupireddy.
