| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
| Cc: | Kris Kennaway <kris(at)obsecurity(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Marc G(dot) Fournier" <scrappy(at)hub(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: postgresql and process titles |
| Date: | 2006-06-13 19:28:28 |
| Message-ID: | 200606131928.k5DJSSE09137@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Jim C. Nasby wrote:
> On Tue, Jun 13, 2006 at 02:10:15PM -0400, Bruce Momjian wrote:
> > Jim C. Nasby wrote:
> > > FWIW, getting turning off stats_command_string substantially reduced
> > > this contention, so it appears the issue is somewhere in the stats code.
> > > This code sends stats messages to a different process via a socket (or
> > > is it UDP?), with the intention that if the system gets heavily loaded
> > > we'll lose some stats in the interest of not bogging down all the
> > > backends. It seems that doesn't work so hot on FreeBSD. :(
> >
> > I am working on a patch for 8.2 to fix that for all platforms.
>
> Excellent. Did I miss discussion of that or have you not mentioned it?
> I'm curious as to how you're fixing it...
The patches are in the hold queue:
http://momjian.postgresql.org/cgi-bin/pgpatches_hold
Title is "Stats collector performance improvement". I need someone to
test my patches on a non-BSD platform to move forward.
--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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