[Ocfs2-users] ocfs2 vs ext3?
Tao Ma
tao.ma at oracle.com
Tue Apr 28 23:22:32 PDT 2009
Hi Andrew,
I just checked max-features, it doesn't include "local" which means
that you still need to create dlm lock in your local node which will
cost some delay. You can check whether your volume enable "local" by command
echo 'stats'|debugfs.ocfs2 /dev/sdX|grep "Incompat"
If the volume is mkfsed to used as local disk, you should see "local".
Otherwise you need to add "--fs-features=local" to your mkfs.
Regards,
Tao
Andrew (Anything) wrote:
>
>
> Hi
>
>
>
> I’ve seen in various places that ocfs2 on a single node can perform
> almost as well as en ext3 partition.
>
>
> However on any test I do with bonnie++ my ocfs2 test is 10x slower than
> ext3.
>
>
>
> ext3: 15000+ random file creations
>
> ocfs2: 1500 random file creations.
>
>
>
> I created the ext3 disk with defaults, and the ocfs2 disk with T mail
> --fs-feature-level=max-features, and mounted with data=writeback,noatime.
>
> I updated to 2.6.29.1 before I ran any tests in case it helped.
>
>
>
> Can someone tell me where I am going wrong?
>
>
>
>
>
> Andy..
>
>
>
>
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