Re: Using WaitEventSet in the postmaster

From: Andres Freund <andres(at)anarazel(dot)de>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Using WaitEventSet in the postmaster
Date: 2022-12-06 23:12:30
Views: Raw Message | Whole Thread | Download mbox | Resend email
Lists: pgsql-hackers

On 2022-12-07 00:58:06 +1300, Thomas Munro wrote:
> One way to fix that for the epoll version is to EPOLL_CTL_DEL and
> EPOLL_CTL_ADD, whenever transitioning to/from a zero event mask.
> Tried like that in this version. Another approach would be to
> (finally) write DeleteWaitEvent() to do the same thing at a higher
> level... seems overkill for this.

What about just recreating the WES during crash restart?

> > This seems to hardcode the specific wait events we're waiting for based on
> > latch.c infrastructure. Not really convinced that's a good idea.
> What are you objecting to? The assumption that the first socket is at
> position 1? The use of GetNumRegisteredWaitEvents()?

The latter.

In response to


Browse pgsql-hackers by date

  From Date Subject
Next Message Andres Freund 2022-12-06 23:16:39 Re: Allow pageinspect's bt_page_stats function to return a set of rows instead of a single row
Previous Message Pavel Borisov 2022-12-06 22:26:55 Re: Allow placeholders in ALTER ROLE w/o superuser