Re: resier4 performance with dbt-2

[Carl-Daniel Hailfinger <c-d.hailfinger.kernel.2004@gmx.net>]

markw@osdl.org wrote:
> On 14 Feb, Dieter Nützel wrote:
> 
>>Am Freitag, 13. Februar 2004 18:31 schrieb markw@osdl.org:
>>
>>>http://developer.osdl.org/markw/fs/dbt2_stp_results.html
>>>
>>>I have some data (at the link above) with the reiser4 2004.02.06
>>>snapshot applied to linux-2.6.2 with our DBT-2 (OLTP) workload on 4-way
>>>and 8-way systems.  On the 4-way systems, the results of the workload
>>>seem comparable to other filesystems.  On the 8-way systems, the results
>>>of the workload drop about 28%.
>>>
>>>I have readprofile and oprofile (w/ annotated assembly) data with the
>>>results.  If there's anything else I can provide let me know.
>>
>>Where are the ReiserFS 3.xx plus data-logging results?
>>Several sites have them in production.
> 
> 
> Unfortunitely we've been running into linux kernel problems that we
> think is more of the fault of the aacraid driver on our systems than the
> reiserfs 3.xx, so I don't have any results for that.  It's just odd that
> only reiserfs 3.xx triggers it.  I'll copy that here for reference:

I know several admins who will not use adaptec cards even if they receive
death threats. Regardless how high/low the load is, the machines will
eventually lock up when using adaptec SCSI controllers. No idea whether it
is the driver or the hardware, but replacing the controller with the same
model didn't fix it while exchanging it against another brand always fixed it.

Buggy hardware, buggy driver, I don't care. If it doesn't work out of the
box, another manufacturer gets the money next time.


Carl-Daniel