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From: Theodore Tso <tytso@mit.edu>
To: Andreas Dilger <adilger@sun.com>
Cc: Josef Bacik <jbacik@redhat.com>, linux-ext4@vger.kernel.org
Subject: Re: [PATCH] imporve jbd2 fsync batching
Date: Wed, 5 Nov 2008 19:27:27 -0500	[thread overview]
Message-ID: <20081106002727.GB8168@mit.edu> (raw)
In-Reply-To: <20081105231012.GJ3184@webber.adilger.int>

On Wed, Nov 05, 2008 at 04:10:12PM -0700, Andreas Dilger wrote:
> There was no reply to my previous comments about making the maximum sleep
> time be a fixed value (e.g. 15ms) instead of having it arbitrarily based
> on the jiffies value, which may change between 1ms and 10ms.

I know the whole point is to make it be self-tuning, but I wonder if
we should have some knobs to control the min and max sleep times.

   	          	       	    	     	     - Ted

  reply	other threads:[~2008-11-06  0:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-04 16:10 [PATCH] imporve jbd2 fsync batching Josef Bacik
2008-11-04 20:52 ` Theodore Tso
2008-11-04 22:15   ` Leroy van Logchem
2008-11-05 23:10 ` Andreas Dilger
2008-11-06  0:27   ` Theodore Tso [this message]
2008-11-06 12:45     ` Ric Wheeler
2008-11-25 10:22       ` [PATCH] ext4: add fsync batch tuning knobs Theodore Tso
2008-12-02 14:45         ` Aneesh Kumar K.V
2008-11-06 14:35   ` [PATCH] imporve jbd2 fsync batching Josef Bacik
2008-11-25 10:23 ` Theodore Tso
2008-11-25 22:41   ` Andreas Dilger
2008-11-26  5:10     ` Theodore Tso
2008-11-26 13:18       ` Josef Bacik

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