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context-switching issue on Xeon - Mailing list pgsql-performance

From Sailer, Denis (YBUSA-CDR)
Subject context-switching issue on Xeon
Date
Msg-id 3FB3AAE149F4AD4D8499E15EE8CF41A3460442@YBCDREX01.corp.ybusa.net
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Responses Re: context-switching issue on Xeon
Re: context-switching issue on Xeon
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The thread below has the test case that we were able to use to reproduce the issue.

 

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?  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 2.4

 

Dual 2.8 GHz XEON with 2GB of memory running PG 8.0.0 with SuSE kernel 2.4

 

 

 

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