linux-ext4 - Re: [PATCH 0/2] ext3: Reduce calling ext3_mark_inode

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Message-ID: <4F28F962.2040209@sx.jp.nec.com>
Date:	Wed, 01 Feb 2012 17:35:46 +0900
From:	Kazuya Mio <k-mio@...jp.nec.com>
To:	Andreas Dilger <adilger@...ger.ca>
CC:	ext4 <linux-ext4@...r.kernel.org>, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH 0/2] ext3: Reduce calling ext3_mark_inode_dirty() for
 speedup

2012/01/31 5:36, Andreas Dilger wrote:
> Can you please run this same measurement on ext4 formatted and running
> with the default options?  I'd like to know if this is still a problem
> in ext4 or not.

I performed the same measurement on ext4 with the default options.
Here is its result:

    filesystem        time(sec)  call extX_mark_inode_dirty(times)
    ---
    ext3              220.5      50,338,104
    ext3 (patched)    196.3      25,169,658
    ext4 (*1)         190.3      28,465,799
    ext4 (*2)         201.5      27,963,473
    ext4 (default)    223.3      14,026,118

    *1 disable ext4-specific options (delalloc, extent, and so on)
    *2 disable only delalloc option

Regards,
Kazuya Mio
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