<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 6, 2014 at 9:37 AM, Jay Pipes <span dir="ltr"><<a href="mailto:jaypipes@gmail.com" target="_blank">jaypipes@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Mon, 2014-01-06 at 08:58 -0800, Joe Gordon wrote:<br>
<br>
> On Mon, Jan 6, 2014 at 8:38 AM, Jay Pipes <<a href="mailto:jaypipes@gmail.com">jaypipes@gmail.com</a>> wrote:<br>
> On Mon, 2014-01-06 at 17:04 +0100, Salvatore Orlando wrote:<br>
> > I have already discussed the matter with Jay on IRC, even if<br>
> for a<br>
> > different issue.<br>
> > In this specific case 'batching' will have the benefit of<br>
> reducing the<br>
> > rootwrap overhead.<br>
><br>
><br>
> Right.<br>
><br>
> > However, it seems the benefit from batching is not<br>
> resolutive. I admit<br>
> > I have not run tests in the gate with batching; I've just<br>
> tested in an<br>
> > environment without significant load, obtaining a<br>
> performance increase<br>
> > of less than 10%.<br>
><br>
><br>
> Well, 10% is 10% better than nothing ;) And add in the<br>
> (significant)<br>
> rootwrap costs, and I think it's certainly worth looking into.<br>
><br>
> Have you tried running neutron without rootwrap, to get a baseline?<br>
<br>
</div>See:<br>
<a href="http://blog.gridcentric.com/bid/318277/Boosting-OpenStack-s-Parallel-Performance" target="_blank">http://blog.gridcentric.com/bid/318277/Boosting-OpenStack-s-Parallel-Performance</a><br>
<br>
Specifically the section titled "Disable rootwrap scripts",<br>
<br></blockquote><div><br></div><div> </div><div>What about it? Also those numbers are pretty old at this point. I was thinking disable rootwrap and run full parallel tempest against it.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Best,<br>
<div class="HOEnZb"><div class="h5">-jay<br>
<br>
<br>
<br>
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