[Gluster-users] Slow performance on samba with small files

Gary Lloyd g.lloyd at keele.ac.uk
Wed Feb 8 10:17:41 UTC 2017

Thanks for the reply

I've just done a bit more testing. If I use rsync from a gluster client to
copy the same files to the mount point it only takes a couple of minutes.
For some reason it's very slow on samba though (version 4.4.4).

I have tried various samba tweaks / settings and have yet to get acceptable
write speed on small files.

*Gary Lloyd*
I.T. Systems:Keele University
Finance & IT Directorate
Keele:Staffs:IC1 Building:ST5 5NB:UK
+44 1782 733063 <%2B44%201782%20733073>

On 8 February 2017 at 10:05, Дмитрий Глушенок <glush at jet.msk.su> wrote:

> Hi,
> There is a number of tweaks/hacks to make it better, but IMHO overall
> performance with small files is still unacceptable for such folders with
> thousands of entries.
> If your shares are not too large to be placed on single filesystem and you
> still want to use Gluster - it is possible to run VM on top of Gluster.
> Inside that VM you can create ZFS/NTFS to be shared.
> 8 февр. 2017 г., в 12:10, Gary Lloyd <g.lloyd at keele.ac.uk> написал(а):
> Hi
> I am currently testing gluster 3.9 replicated/distrbuted on centos 7.3
> with samba/ctdb.
> I have been able to get it all up and running, but writing small files is
> really slow.
> If I copy large files from gluster backed samba I get almost wire speed
> (We only have 1Gb at the moment). I get around half that speed if I copy
> large files to the gluster backed samba system, which I am guessing is due
> to it being replicated (This is acceptable).
> Small file write performance seems really poor for us though:
> As an example I have an eclipse IDE workspace folder that is 6MB in size
> that has around 6000 files in it. A lot of these files are <1k in size.
> If I copy this up to gluster backed samba it takes almost one hour to get
> there.
> With our basic samba deployment it only takes about 5 minutes.
> Both systems reside on the same disks/SAN.
> I was hoping that we would be able to move away from using a proprietary
> SAN to house our network shares and use gluster instead.
> Does anyone have any suggestions of anything I could tweak to make it
> better ?
> Many Thanks
> *Gary Lloyd*
> ________________________________________________
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> Finance & IT Directorate
> Keele:Staffs:IC1 Building:ST5 5NB:UK
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> --
> Dmitry Glushenok
> Jet Infosystems
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