Open Stack

On Mon, 2014-01-06 at 08:58 -0800, Joe Gordon wrote:

> On Mon, Jan 6, 2014 at 8:38 AM, Jay Pipes <jaypipes at gmail.com> wrote:
>         On Mon, 2014-01-06 at 17:04 +0100, Salvatore Orlando wrote:
>         > I have already discussed the matter with Jay on IRC, even if
>         for a
>         > different issue.
>         > In this specific case 'batching' will have the benefit of
>         reducing the
>         > rootwrap overhead.
>         
>         
>         Right.
>         
>         > However, it seems the benefit from batching is not
>         resolutive. I admit
>         > I have not run tests in the gate with batching; I've just
>         tested in an
>         > environment without significant load, obtaining a
>         performance increase
>         > of less than 10%.
>         
>         
>         Well, 10% is 10% better than nothing ;) And add in the
>         (significant)
>         rootwrap costs, and I think it's certainly worth looking into.
> 
> Have you tried running neutron without rootwrap, to get a baseline?

See:
http://blog.gridcentric.com/bid/318277/Boosting-OpenStack-s-Parallel-Performance

Specifically the section titled "Disable rootwrap scripts",

Best,
-jay