Re: dbench regression in 2.6

[Steven Pratt <slpratt@austin.ibm.com>]

Hans Reiser wrote:

> Steven Pratt wrote:
>
>> Ok, first let me start with appologies as this turns out to be a wild 
>> goose chase.  It seems that I am running the version of reiserfsprogs 
>> that ships with SLES 8.0 (3.6.2) which has a hardcoded check for 
>> kernel versions 2.2, 2.4 and 2.5, but does not know about 2.6 and 
>> thus the mkfs.resiserfs is failing.  Since all of this testing is 
>> automated this failure was not caught, and the dbench numbers 
>> reported were actually for the last filesystem run on that drive, in 
>> this case XFS (which is why it looks so bad :-) ).  I have fixed the 
>> scripts to force the format to 3.6 and all seems to be well.  If I 
>> get the chance I will go backfill all of the numbers.  Sorry for the 
>> confusion but I run these regresion tests in my spare time and don't 
>> always have time to crawl through the output, although a simple look 
>> in the captured /proc/mounts, or even the fstype file I create in the 
>> benchmark directory would have saved us all a lot of time.
>> Again, sorry for the confusion, keep up the good work.
>>
>> Steve
>>
>>
>>
> Steve, thanks a lot for making this effort.  I would be interested in 
> your results.  Do you think it might be possible for us to test and 
> profile reiser4 scalability on your 8-way?  We designed reiser4 to be 
> highly scalable, but of course one always finds a few unexpected 
> scalability issues when one tests for the first time.

Yes, I definitely plan on doing reiser4 benchmarking.  Just a matter of 
finding some time to do it.

Steve