<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On 13 October 2015 at 07:54, Ben Turner <span dir="ltr"><<a href="mailto:bturner@redhat.com" target="_blank">bturner@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div id=":1of" class="" style="overflow:hidden">Random IO has vastly improved with MT <span class="">epoll</span> introduced in 3.7, try a test on 3.7 with server and client event threads set to 4. If you want to confirm this before you upgrade run top -H during your testing and look for a hot thread(single thread / CPU pegged at 100%). If you see this during your runs on 3.6 then the MT <span class="">epoll</span> implementation in 3.7 will def help you out.<br>
</div></blockquote></div><br><br></div><div class="gmail_extra">Not 100%, but it gets up to 90% <br><br></div><div class="gmail_extra">Oddly, the feature list seems to show it as being done in 3.6 (<a href="http://www.gluster.org/community/documentation/index.php/Features/Feature_Smallfile_Perf#multi-thread-epoll">http://www.gluster.org/community/documentation/index.php/Features/Feature_Smallfile_Perf#multi-thread-epoll</a>)<br><br></div><div class="gmail_extra">Seems to be causing 3.7.4 to crash regularly at the moment to :(<br></div><div class="gmail_extra"><br clear="all"><br>-- <br><div class="gmail_signature">Lindsay</div>
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