[Btrfs-devel] btrfs stability

[Rekrutacja]

Dongjun Shin wrote:
> On Sun, Mar 9, 2008 at 9:11 AM, Rekrutacja <rekrutacja119 at gmail.com> wrote:
>> Christoph Hellwig wrote:
>>> On Sat, Mar 08, 2008 at 07:50:02PM +0100, Rekrutacja119 wrote:
>>>> same for xfs is:
>>> which version of xfs did you test?  2.6.25-rc has some changes in this
>>> area that should improve metadata intensive workloads dramatically.
>>>
>>>
>> it didnt help, i tried on 2.6.25-rc4 and the results are the same.
>> running postmark with 20k files, 10k transactions, 20k subdirs is giving
>> results of around 200KB/s read and 1MB/s write, which is even slower...
>>
>> i don't know where it comes from, but it is xfs issue i think
>>
>>
> 
> I experienced the same kind of performance degradation when running
> postmark on xfs. How about using 'nobarrier' mount option for xfs?
> 

it doesnt help, setting 'ikeep' neither