[openib-general] Re: Re: [PATCH] (fixed) reduce qp locking on cq poll

[Michael S. Tsirkin]

Quoting r. Grant Grundler <iod00d at hp.com>:
> Subject: Re: Re: [PATCH] (fixed) reduce qp locking on cq poll
> 
> On Wed, Jan 26, 2005 at 07:19:02PM +0200, Michael S. Tsirkin wrote:
> > > I'm a little worried that you see no improvement from this patch -- it
> > > doesn't seem like fast hardware should be required.
> 
> I was wondering the same thing. Why is fast HW required?

See below.

> > On my hardware I see wild variations of bandwidth so only big wins
> > show conclusively. Can you test it?
> 
> Can you quantify what you mean by "wild variations" and "big wins"?

Goes up or down up to 3% on a bad day. Anything less is noise for me.

> Have you tried pinning the test processes to a particular CPU
> with taskset?

No. Why will this help?

> thanks,
> grant


-- 
I dont speak for Mellanox