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From: Andy Bennett <andyjpb@ashurst.eu.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: Disk spin down
Date: Sun, 12 Feb 2012 21:15:11 +0000	[thread overview]
Message-ID: <4F382BDF.3070901@ashurst.eu.org> (raw)
In-Reply-To: <20120212200647.GI12836@dastard>

Hi,

> Seems to me that something is still dirtying an inode regularly.
> 
> Perhaps you need to look at the XFS and writeback event traces to
> find out what process is dirtying the inode. trace-cmd is your
> friend...

Something like this?

-----
echo 1 > /sys/kernel/debug/tracing/events/xfs/enable

echo 0 > /sys/kernel/debug/tracing/events/xfs/enable

more /sys/kernel/debug/tracing/trace
-----


I tried recreating the situation of the last 2 days (clean boot, stopped
services) and it's currently quiescing nicely. :-(

I'll keep an eye on it and try to catch it in the act but every time I
turn the tracing on the HDD light stays firmly off. :-(







Regards,
@ndy

-- 
andyjpb@ashurst.eu.org
http://www.ashurst.eu.org/
0x7EBA75FF

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  reply	other threads:[~2012-02-12 21:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-12 18:23 Disk spin down Andy Bennett
2012-02-12 20:06 ` Dave Chinner
2012-02-12 21:15   ` Andy Bennett [this message]
2012-02-12 21:28     ` Andy Bennett
2012-02-12 22:35       ` Dave Chinner
2012-02-12 22:57         ` Andy Bennett
2012-02-13  8:36 ` Brian Candler
2012-02-13 23:41   ` Dave Chinner

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