From: Mark Wong <markwkm@gmail.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Cc: Gabrielle Roth <gorthx@gmail.com>
Cc: Selena Deckelmann <selenamarie@gmail.com>
Subject: Effects of setting linux block device readahead size
Date: Tue, 9 Sep 2008 23:53:17 -0700
Message-ID: <70c01d1d0809092353r4ae687a3ycf3d99d43a5680cf@mail.gmail.com> (raw)
Hi all,
I've started to display the effects of changing the Linux block device
readahead buffer to the sequential read performance using fio. There
are lots of raw data buried in the page, but this is what I've
distilled thus far. Please have a look and let me know what you
think:
http://wiki.postgresql.org/wiki/HP_ProLiant_DL380_G5_Tuning_Guide#Readahead_Buffer_Size
Regards,
Mark
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: markwkm@gmail.com, gorthx@gmail.com, selenamarie@gmail.com
Subject: Re: Effects of setting linux block device readahead size
In-Reply-To: <70c01d1d0809092353r4ae687a3ycf3d99d43a5680cf@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox