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Re: Performance increase with elevator=deadline - Mailing list pgsql-performance

From Gregory Stark
Subject Re: Performance increase with elevator=deadline
Date
Msg-id 878wzkh2iy.fsf@oxford.xeocode.com
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In response to Performance increase with elevator=deadline  ("Albe Laurenz" <laurenz.albe@wien.gv.at>)
List pgsql-performance
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"Albe Laurenz" <laurenz.albe@wien.gv.at> writes:

> This refers to the performance problem reported in
> http://archives.postgresql.org/pgsql-performance/2008-04/msg00052.php
>
> After some time of trial and error we found that changing the I/O scheduling
> algorithm to "deadline" improved I/O performance by a factor 4 (!) for
> this specific load test.

What was the algorithm before?

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  Gregory Stark
  EnterpriseDB          http://www.enterprisedb.com
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