Re: AutoVacuum starvation from sinval messages - Mailing list pgsql-hackers

From Tom Lane
Subject Re: AutoVacuum starvation from sinval messages
Date
Msg-id 20832.1352413492@sss.pgh.pa.us
Whole thread Raw
In response to Re: AutoVacuum starvation from sinval messages  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: AutoVacuum starvation from sinval messages
List pgsql-hackers
I wrote:
> Jeff Janes <jeff.janes@gmail.com> writes:
>> When the poll() gets EINTR by SIGUSR1 for the invalidation, it
>> restarts at the full timeout (60 seconds in this case) with no
>> accounting for the time already waited.

> Hmm.  That seems like a problem, all right, but I don't believe the
> claim that it applies only to the poll() code path.  On many platforms
> the select() path would have the same issue.

BTW, doesn't win32_latch.c have the identical problem?  I don't see it
updating the timeout after a signal, either.
        regards, tom lane



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