From: wbrana@gmail.com
To: Theodore Tso <tytso@mit.edu>, linux-kernel@vger.kernel.org
Subject: Re: ext4/reiser3/btr directory create/read perf
Date: Wed, 30 Sep 2009 21:44:04 +0200 [thread overview]
Message-ID: <a769871e0909301244nec4764albeb7bf042495cc1e@mail.gmail.com> (raw)
In-Reply-To: <a769871e0909301205x771e1fc3y62a25790e1728754@mail.gmail.com>
On Wed, Sep 30, 2009 at 9:05 PM, <wbrana@gmail.com> wrote:
> I reduced benchmark to 10 directories and executed with strace
I meant 5 directories.
>
> Times with 10000 directories and dir_index enabled
>
> /mnt/md8: 64 kB chunks
> ext4
> void cfs::vdirs_create(): 4996 msec
> void cfs::vdirs_read(): 5100 msec
>
Times with 1000 directories and dir_index enabled
/mnt/md8: 64 kB chunks
reiser3
void cfs::vdirs_create(): 973 msec
void cfs::vdirs_read(): 60 msec
ext4
void cfs::vdirs_create(): 2435 msec
void cfs::vdirs_read(): 3326 msec
btrfs
void cfs::vdirs_create(): 1036 msec
void cfs::vdirs_read(): 155 msec
ext4 was 55 times slower than reiser3 in vdirs_read()
next prev parent reply other threads:[~2009-09-30 19:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-27 12:27 wbrana
2009-09-28 14:29 ` Theodore Tso
2009-09-30 19:05 ` wbrana
2009-09-30 19:44 ` wbrana [this message]
2009-09-30 22:34 ` Theodore Tso
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