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Message-ID: <a769871e0909301244nec4764albeb7bf042495cc1e@mail.gmail.com> Date: Wed, 30 Sep 2009 21:44:04 +0200 From: wbrana@...il.com To: Theodore Tso <tytso@....edu>, linux-kernel@...r.kernel.org Subject: Re: ext4/reiser3/btr directory create/read perf On Wed, Sep 30, 2009 at 9:05 PM, <wbrana@...il.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() -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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