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From: ching <lsching17@gmail.com>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	dave@jikos.cz
Cc: Liu Bo <bo.li.liu@oracle.com>
Subject: Re: enquiry about autodefrag option
Date: Fri, 21 Sep 2012 05:03:41 +0800	[thread overview]
Message-ID: <505B84AD.7010808@gmail.com> (raw)
In-Reply-To: <20120920115111.GJ17430@twin.jikos.cz>


>> Is there any io niceness control for autodefrag process too? it will
>> be nice if the idle class is used.
> No. Autodefrag will mark file data dirty and they'll be written back to
> the storage in the same way as any other write through the worker
> threads.
>
>

AFAIK, the autodefrag will read related extents and mark them dirty, io niceness should be applicable to the read operation

  reply	other threads:[~2012-09-20 21:03 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-17 11:15 enquiry about autodefrag option (resent) ching
2012-09-19 11:28 ` enquiry about autodefrag option ching
2012-09-19 14:12   ` Liu Bo
2012-09-19 17:39     ` Martin Steigerwald
2012-09-20 14:05       ` David Sterba
2012-09-19 23:36     ` ching
2012-09-20 11:51       ` David Sterba
2012-09-20 21:03         ` ching [this message]
2012-09-24 15:50           ` David Sterba
  -- strict thread matches above, loose matches on Subject: below --
2012-09-17  6:12 ching lu

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