[Gluster-users] GlusterFS with FUSE slow vs ZFS volume
kiran at fractalio.com
Thu Feb 19 08:52:00 UTC 2015
We are using fio(https://github.com/axboe/fio) for load/stress testing.
We have not done performance check on a single node.
I will try to verify it.
On Thu, Feb 5, 2015 at 4:47 PM, Pranith Kumar Karampuri
<pkarampu at redhat.com> wrote:
> +Kiran Patil may know about this.
> On 02/03/2015 12:56 AM, ML mail wrote:
>> I am testing GlusterFS for the first time and have installed the latest
>> GlusterFS 3.5 stable version on Debian 7 on brand new SuperMicro hardware
>> with ZFS instead of hardware RAID. My ZFS pool is a RAIDZ-2 with 6 SATA
>> disks of 2 TB each.
>> After setting up a first and single test brick on my currently single test
>> node I wanted first to see how much slower will GlusterFS be compared to
>> writting directly to the ZFS volume. For that purpose I have mounted my
>> GlusterFS volume locally on the same server using FUSE.
>> For my tests I have used bonnie++ with the command "bonnie++ -n16 -b" and
>> I must say I am quite shocked to see that with this current setup GlusterFS
>> slows down the whole file system with a factor of approximately 6 to 8. For
>> ZFS volume
>> Sequential output by block (read): 936 MB/sec
>> Sequential input by block (write): 1520 MB/sec
>> GlusterFS on top of same ZFS volume mounted with FUSE
>> Sequential output by block (read): 114 MB/sec
>> Sequential input by block (write): 312 MB/sec
>> Now I was wondering if such a performance drop on a single GlusterFS node
>> is expected? If not is it maybe ZFS which is messing up things?
>> bonnie++ took 3 minutes to rune on the ZFS volume and 18 minutes on the
>> GlusterFS mount. I have copied the bonnie++ results below just in case in
>> CVS format:
>> Maybe they are a few performance tuning trick that I am not aware of?
>> Let me know if I should provide any more information. In advance thanks
>> for your comments.
>> Best regards
>> Gluster-users mailing list
>> Gluster-users at gluster.org
More information about the Gluster-users