[Gluster-users] performance tuning?

Jeff White jaw171 at pitt.edu
Wed Dec 21 14:26:37 UTC 2011

You didn't provide your current config or what version you are running 
but you may find this useful:


I'd be interested to hear what happens if you repeat your tests with 
some performance settings changed.  I will be configuring Gluster in an 
HPC cluster with ~83 million files and I'm going to run into the 'lots 
of small files on replica sucks' problem.

Also, here's my testing but it was on a very limited network (stuck on a 
100Mb switch): 

Jeff White - Linux/Unix Systems Engineer
University of Pittsburgh - CSSD

On 12/21/2011 03:09 AM, Ulli Horlacher wrote:
> I have set up my first 2 node gluster with 1 GbE for testing.
> Thanks to very good documentation, it was easy.
> My aim is to use gluster for LXC VM replication.
> Write performance is a critical issue for me.
> Test case 1: copying 22000 files with 1 GB totally
> local disc/filesystem: 47 MB/s
> NFS3:                  13 MB/s
> glusterfs:              4 MB/s
> Test case 2: writing one file with 1 GB
> local disc/filesystem: 123 MB/s
> NFS3:                   95 MB/s
> glusterfs:              67 MB/s
> Especially the result of test case 1 is very disappointing. Is there a way
> of tuning it up?

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