[Ocfs2-users] OCFS2 performance - disk random access time problem

[Angelo McComis]

Cory-  is it appropriate to say that the fix will not be backported to
the 2.6.16.60.x.x kernels for 10-sp3?


- Angelo

{via mobile device}

On Jun 2, 2010, at 8:43 AM, Coly Li <coly.li at suse.de> wrote:

>
>
> On 06/02/2010 08:19 PM, Tao Ma Wrote:
>> Add Mark Fasheh <mfasheh at suse.com> and Coly Li <coly.li at suse.de> to
>> cc
>> since they know what
>> ocfs2 kernel version SUSE uses.
>> Angelo McComis wrote:
>>>
>>>> On 01/06/10 22:34, Sunil Mushran wrote:
>>>>> The kernel is old. We fixed this issue in 2.6.30. We have also
>>>    backported
>>>>> it to the 1.4 production tree.
>>>>>
>>>>> The problem was that the inodes being created did not have
>>> locality
>>>>> leading to a directory having inodes that were spaced far apart
>>>    from
>>>>> each other. The one place where it really affected performance
>>>    was "rm".
>>>>
>>>> Thank you for reply!
>>>
>>>
>>> I've seen this rm problem in the production version of SLES 10.3
>>> +updates.
>>>
>>> Is this fix available in the SLES Enterprise kernels yet? 10.3.x or
>>> 11.1.x (11.1 officially releases today, btw).
>>>
>
> I guess you meant SLES10 SP3 and SLES11 SP1. For SLES11 SP1, the
> kernel is 2.6.32 based, the fix Sunil mentioned (which
> was included in 2.6.30) should be in SLES11 SP1 kernel.
>
> --
> Coly Li
> SuSE Labs