Horton

Re: file system and raid performance

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Mark Wong <markwkm@gmail.com>
Cc: david@lang.hm, pgsql-performance@postgresql.org, Gabrielle Roth <gorthx@gmail.com>
Date: 2008-08-15T19:22:59Z
Lists: pgsql-performance 
Mark Wong wrote:
> On Mon, Aug 4, 2008 at 10:04 PM,  <david@lang.hm> wrote:
> > On Mon, 4 Aug 2008, Mark Wong wrote:
> >
> >> Hi all,
> >>
> >> We've thrown together some results from simple i/o tests on Linux
> >> comparing various file systems, hardware and software raid with a
> >> little bit of volume management:
> >>
> >> http://wiki.postgresql.org/wiki/HP_ProLiant_DL380_G5_Tuning_Guide

Mark, very useful analysis.  I am curious why you didn't test
'data=writeback' on ext3;  'data=writeback' is the recommended mount
method for that file system, though I see that is not mentioned in our
official documentation.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +