linux-ext4 - Re: [PATCH 11/26] ext4: Stop messing with nr_to_write in ext4_da

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Message-ID: <20130604164943.GB3030@thunk.org>
Date:	Tue, 4 Jun 2013 12:49:43 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 11/26] ext4: Stop messing with nr_to_write in
 ext4_da_writepages()

On Fri, May 31, 2013 at 11:42:44AM +0200, Jan Kara wrote:
> Writeback code got better in how it submits IO and now the number of
> pages requested to be written is usually higher than original 1024. The
> number is now dynamically computed based on observed throughput and is
> set to be about 0.5 s worth of writeback. E.g. on ordinary SATA drive
> this ends up somewhere around 10000 as my testing shows. So remove the
> unnecessary smarts from ext4_da_writepages().
> 
> Reviewed-by: Zheng Liu <wenqing.lz@...bao.com>
> Signed-off-by: Jan Kara <jack@...e.cz>

Thanks, applied.

					- Ted
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