| From: | Robert Creager <Robert_Creager(at)LogicalChaos(dot)org> |
|---|---|
| To: | pg(at)fastcrypt(dot)com |
| Cc: | Josh Berkus <josh(at)agliodbs(dot)com>, Dirk_Lutzebäck <lutzeb(at)aeccom(dot)com>, ohp(at)pyrenet(dot)fr, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Joe Conway <mail(at)joeconway(dot)com>, "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, pgsql-performance(at)postgresql(dot)org, Neil Conway <neilc(at)samurai(dot)com> |
| Subject: | Re: Wierd context-switching issue on Xeon |
| Date: | 2004-05-02 21:46:49 |
| Message-ID: | 20040502154649.3cb2f283@thunder.mshome.net |
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| Lists: | pgsql-performance |
When grilled further on (Sun, 02 May 2004 11:39:22 -0400),
Dave Cramer <pg(at)fastcrypt(dot)com> confessed:
> Robert,
>
> The real question is does it help under real life circumstances ?
I'm not yet at the point where the CS's are causing appreciable delays. I
should get there early this week and will be able to measure the relief your
patch may provide.
>
> Did you do the tests with Tom's sql code that is designed to create high
> context switchs ?
No, I'm using my queries/data.
Cheers,
Rob
--
10:44:58 up 3 days, 17:30, 4 users, load average: 2.00, 2.04, 2.01
Linux 2.6.5-01 #7 SMP Fri Apr 16 22:45:31 MDT 2004
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