Re: Wierd context-switching issue on Xeon patch for 7.4.1 - Mailing list pgsql-performance

From Josh Berkus
Subject Re: Wierd context-switching issue on Xeon patch for 7.4.1
Date
Msg-id 200404271105.00395.josh@agliodbs.com
Whole thread Raw
In response to Re: Wierd context-switching issue on Xeon patch for 7.4.1  (Dave Cramer <pg@fastcrypt.com>)
Responses Re: Wierd context-switching issue on Xeon patch for 7.4.1  (Dave Cramer <pg@fastcrypt.com>)
List pgsql-performance
Dave,

> Are you testing this with Tom's code, you need to do a baseline
> measurement with 10 and then increase it, you will still get lots of cs,
> but it will be less.

No, that was just a test of 1000 straight up.    Tom outlined a method, but I
didn't see any code that would help me find a better level, other than just
trying each +100 increase one at a time.   This would take days of testing
...
--
Josh Berkus
Aglio Database Solutions
San Francisco

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