| From: | Rod Taylor <pg(at)rbt(dot)ca> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Josh Berkus <josh(at)agliodbs(dot)com>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, pg(at)fastcrypt(dot)com, Paul Tuckfield <paul(at)tuckfield(dot)com>, Anjan Dave <adave(at)vantage(dot)com>, Neil Conway <neilc(at)samurai(dot)com>, Dirk Lutzebäck <lutzeb(at)aeccom(dot)com>, Postgresql Performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Wierd context-switching issue on Xeon patch for 7.4.1 |
| Date: | 2004-04-22 21:22:11 |
| Message-ID: | 1082668930.94537.0.camel@jester |
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| Thread: | |
| Lists: | pgsql-performance |
On Thu, 2004-04-22 at 13:55, Tom Lane wrote:
> Josh Berkus <josh(at)agliodbs(dot)com> writes:
> > This may be a moot point, since you've stated that changing the loop timing
> > won't solve the problem, but what about making the test part of make? I
> > don't think too many systems are going to change processor architectures once
> > in production, and those that do can be told to re-compile.
>
> Having to recompile to run on single- vs dual-processor machines doesn't
> seem like it would fly.
Is it something the postmaster could quickly determine and set a global
during the startup cycle?
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