Re: Ext4 benchmarks

[Jean-Pierre Dion <jean-pierre.dion@bull.net>]

Hi Jose,

I have to check with the team here.
Will tell you.

Thanks.

jean-pierre


Jose R. Santos wrote:
> Jean-Pierre Dion wrote:
>> Hi Jose,
>>
>> thank you for the feedback.
>>
>> We took your remarks into account and we are doing some perfs with
>> iozone (close to desktop activity, mono-thread) and ffsb (allows to 
>> run benchs
>> in a multi-thread activity like a server does, different blocks 
>> sizes...).
>>
>> We compare ext3 and ext4 (with extents, w/ and w/o del alloc...)...
>>
>> We will publish the results on bullopensource.org
>>   
>
> Hi Jean-Pierre,
>
> While it may be to late for the purposes of your OLS paper, one thing 
> that doesn't seem to be getting much attention is the performance of a 
> file system while doing many meta-data operations or throughput 
> testing during heavy journal log activity.  I believe that IOzone is 
> very limited in testing this and FFSB isn't much better at it either.  
> Eventually, I plan to add support in FFSB to create workload profile 
> were one can select a weight balance of these types of operations.
>
> Is this something that you are already doing for this round of testing?
>
> -JRS
>