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Re: 7.4.6 FC2 MUCH slower from 2.6.9-1.11 to 2.6.10-1.8 - Mailing list pgsql-general

From Clodoaldo Pinto
Subject Re: 7.4.6 FC2 MUCH slower from 2.6.9-1.11 to 2.6.10-1.8
Date
Msg-id 20050220153502.30487.qmail@web40906.mail.yahoo.com
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In response to Re: 7.4.6 FC2 MUCH slower from 2.6.9-1.11 to 2.6.10-1.8  (Clodoaldo Pinto <clodoaldo_pinto@yahoo.com.br>)
Responses Re: 7.4.6 FC2 MUCH slower from 2.6.9-1.11 to 2.6.10-1.8  (Clodoaldo Pinto <clodoaldo.pinto@gmail.com>)
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I made the same experience now with PG 8.01, FC3 and 512MB memory. The previous
was PG 7.4.6, FC2 and 1GB.

The difference in performance between kernels 2.6.9-1.724 and 2.6.10-1.766 is
still huge.

I notice that in 2.6.10 the function accesses the disk much more.

Does anyone know what changes from 2.6.9 to 2.6.10 could cause this drop in
performance?

Regards, Clodoaldo Pinto






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