[openib-general] Re: user-mode verbs on Itanium

[Michael S. Tsirkin]

Quoting r. Grant Grundler <iod00d at hp.com>:
> Subject: Re: user-mode verbs on Itanium
> 
> On Wed, May 11, 2005 at 10:21:38AM +0300, Michael S. Tsirkin wrote:
> > You mean just sample the clock before the first post?
> 
> Yes.
> 
> > That would be easy, but lets look at what does it measure:
> > 
> > On the client, you just get the time it takes to perform the
> > first post_send operation. If this is interesting to you, I agree,
> > but lets take the timestamps around each post send operation to
> > make it statistically relevant.
> > Let me know - and need to think of a way to do this without
> > affecting latency numbers.
> 
> Yes, I'd like to try that.
> But a few more of my pending patches need to either be rejected
> or (preferably) accepted.

I plan to go over that on Sunday.

-- 
MST - Michael S. Tsirkin