From:
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:
Sean Chittenden <sean(at)chittenden(dot)org>
Cc:
Neil Conway <neilc(at)samurai(dot)com>,Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>,"Marc G(dot) Fournier" <scrappy(at)hub(dot)org>, pgsql-committers(at)postgresql(dot)org
Subject:
Re: pgsql-server/ /configure /configure.in rc/incl ...
Date:
2003-03-11 05:06:14
Message-ID:
2773.1047359174@sss.pgh.pa.us (view raw or flat )
Thread:
2003-03-06 03:16:56 from tgl(at)postgresql(dot)org (Tom Lane)
2003-03-06 03:30:11 from "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
2003-03-06 03:34:27 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2003-03-06 03:42:42 from "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
2003-03-06 03:47:51 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2003-03-06 04:33:36 from Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
2003-03-06 09:41:17 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-06 15:25:36 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2003-03-07 00:36:40 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-07 00:47:52 from Neil Conway <neilc(at)samurai(dot)com>
2003-03-07 06:04:12 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-07 14:29:46 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2003-03-07 21:46:30 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-11 02:50:59 from "Marc G(dot) Fournier" <scrappy(at)hub(dot)org>
2003-03-11 04:11:33 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-11 04:17:46 from "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
2003-03-11 04:42:35 from Neil Conway <neilc(at)samurai(dot)com>
2003-03-11 04:53:01 from "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
2003-03-11 04:56:10 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-11 05:06:14 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2003-03-11 05:30:33 from Sean Chittenden <sean(at)chittenden(dot)org>
2003-03-06 04:19:16 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Lists:
pgsql-committers pgsql-performance
Sean Chittenden <sean(at)chittenden(dot)org> writes:
> That said, what was the performance gain of moving
> from select() to poll()? It wasn't the biggest optimization in
> PostgreSQL history, nor the smallest, but it was a step forward. -sc
That change was not sold as a performance improvement; I doubt that it
is one. It was sold as not failing when libpq runs inside an
application that has thousands of open files (i.e., more than select()
can cope with). "Faster" is debatable, "fails" is not...
regards, tom lane
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