<div dir="ltr"><div>No, you don't need to do any of that. Just executing volume-set commands is sufficient for the changes to take effect.<br><br><br></div>-Krutika<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 21, 2017 at 3:48 PM, Chris Boot <span dir="ltr"><<a href="mailto:bootc@bootc.net" target="_blank">bootc@bootc.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">[replying to lists this time]<br>
<span class=""><br>
On 20/06/17 11:23, Krutika Dhananjay wrote:<br>
</span><span class="">> Couple of things:<br>
><br>
> 1. Like Darrell suggested, you should enable stat-prefetch and increase<br>
> client and server event threads to 4.<br>
> # gluster volume set <VOL> performance.stat-prefetch on<br>
> # gluster volume set <VOL> client.event-threads 4<br>
> # gluster volume set <VOL> server.event-threads 4<br>
><br>
> 2. Also glusterfs-3.10.1 and above has a shard performance bug fix -<br>
> <a href="https://review.gluster.org/#/c/16966/" rel="noreferrer" target="_blank">https://review.gluster.org/#/<wbr>c/16966/</a><br>
><br>
> With these two changes, we saw great improvement in performance in our<br>
> internal testing.<br>
<br>
</span><span class="">Hi Krutika,<br>
<br>
Thanks for your input. I have yet to run any benchmarks, but I'll do<br>
that once I have a bit more time to work on this.<br>
<br>
I've tweaked the options as you suggest, but that doesn't seem to have<br>
made an appreciable difference. I admit that without benchmarks it's a<br>
</span>bit like sticking your finger in the air, though. Do I need to restart<br>
my bricks and/or remount the volumes for these to take effect?<br>
<span class="im HOEnZb"><br>
I'm actually running GlusterFS 3.10.2-1. This is all coming from the<br>
CentOS Storage SIG's centos-release-gluster310 repository.<br>
<br>
Thanks again.<br>
<br>
</span><div class="HOEnZb"><div class="h5">Chris<br>
<br>
--<br>
Chris Boot<br>
<a href="mailto:bootc@bootc.net">bootc@bootc.net</a><br>
</div></div></blockquote></div><br></div>