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From: "Gordon Mckeown" <ml_lkml@thefluffyone.net>
To: LKML <linux-kernel@vger.kernel.org>
Cc: "Tomasz Chmielewski" <mangoo@wpkg.org>
Subject: Re: Very high IOWait during all disk activity
Date: Sat, 1 Mar 2008 19:41:51 +0000	[thread overview]
Message-ID: <74d8fc520803011141q74ec01e4j2185fad3f0073a16@mail.gmail.com> (raw)
In-Reply-To: <74d8fc520803010531h3453ca91m4521f6bd94b1f5ad@mail.gmail.com>

On Sat, Mar 1, 2008 at 1:31 PM, I wrote:
>  I'll run some more tests with different filesystems to see if this is
>  related to the use of EXT3 specifically.

Much of the system CPU usage does appear to be due to the use of EXT3;
the load with EXT2 is around half that with EXT3.

See graph of results: http://www.ubergeek.org.uk/cpu_usage.png

For Windows, the graph shows total CPU usage as reported by the OS.
For Linux, the combined User+System figure was used.

Regards,

Gordon.

  reply	other threads:[~2008-03-01 19:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-29 15:18 Tomasz Chmielewski
2008-02-29 15:47 ` Gordon Mckeown
2008-02-29 16:00   ` Tomasz Chmielewski
2008-03-01 13:31     ` Gordon Mckeown
2008-03-01 19:41       ` Gordon Mckeown [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-02-29 14:16 Gordon Mckeown

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