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context-switching issue on Xeon

From: "Sailer, Denis (YBUSA-CDR)" <Denis(dot)Sailer(at)Yellowbook(dot)com>
To: <pgsql-performance(at)postgresql(dot)org>
Subject: context-switching issue on Xeon
Date: 2005-07-19 18:23:25
Message-ID: (view raw or whole thread)
Lists: pgsql-performance
The thread below has the test case that we were able to use to reproduce
the issue.


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?  I haven't been able to find anything showing a
resolution of some kind.


We are seeing this on two of our machines:


Quad 3.0 GHz XEON with 3GB of memory running PG 7.4.3 with SuSE kernel


Dual 2.8 GHz XEON with 2GB of memory running PG 8.0.0 with SuSE kernel





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Subject: Re: context-switching issue on Xeon
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