[Gluster-users] Tuning for small files

[hmlth at t-hamel.fr]

I'm also quite interested by small files performances optimization, but 
I'm a bit confused about the best option between 3.6/3.7.

Ben Turner was saying that 3.6 might give the best performances:
http://www.gluster.org/pipermail/gluster-users/2015-September/023733.html

What kind of gain is expected (with consistent-metadata) if this 
regression is solved?

I tried 3.6.5 (last version for debian jessie), and it's a bit better 
than 3.7.4 but not by much (10-15%).

I was also wondering if there is recommendations for the underlying file 
system of the bricks (xfs, ext4, tuning...).


Regards

Thomas HAMEL

On 2015-09-28 12:04, André Bauer wrote:
> If you're not already on Glusterfs 3.7.x i would recommend an update 
> first.
> 
> Am 25.09.2015 um 17:49 schrieb Thibault Godouet:
>> Hi,
>> 
>> There are quite a few tuning parameters for Gluster (as seen in 
>> Gluster
>> volume XYZ get all), but I didn't find much documentation on those.
>> Some people do seem to set at least some of them, so the knowledge 
>> must
>> be somewhere...
>> 
>> Is there a good source of information to understand what they mean, 
>> and
>> recommendation on how to set them to get a good small file 
>> performance?
>> 
>> Basically what I'm trying to optimize is for svn operations (e.g. svn
>> checkout, or svn branch) on a replicated 2 x 1 volume (hosted on 2 
>> VMs,
>> 16GB ram, 4 cores each, 10Gb/s network tested at full speed), using a
>> NFS mount which appears much faster than fuse in this case (but still
>> much slower than when served by a normal NFS server).
>> Any recommendation for such a setup?
>> 
>> Thanks,
>> Thibault.
>> 
>> 
>> 
>> _______________________________________________
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>> Gluster-users at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-users
>> 
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