| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Sailer, Denis (YBUSA-CDR)" <Denis(dot)Sailer(at)Yellowbook(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: context-switching issue on Xeon |
| Date: | 2005-07-19 18:40:46 |
| Message-ID: | 8216.1121798446@sss.pgh.pa.us |
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| Lists: | pgsql-performance |
"Sailer, Denis (YBUSA-CDR)" <Denis(dot)Sailer(at)Yellowbook(dot)com> writes:
> http://archives.postgresql.org/pgsql-performance/2004-04/msg00280.php
> The last messages on this subject are from April of 2005. Has there
> been any successful ways to significantly reduce the impact this has to
> multi-processing?
CVS tip should largely fix the problem as far as buffer manager
contention goes.
> I haven't been able to find anything showing a
> resolution of some kind.
Look at the Feb/March threads concerning buffer manager rewrite, clock
sweep, etc ... eg
http://archives.postgresql.org/pgsql-patches/2005-03/msg00015.php
regards, tom lane
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