[openib-general] questions and a comment on the perftest package

Michael S. Tsirkin mst at mellanox.co.il
Tue Nov 7 01:18:36 PST 2006


Quoting Or Gerlitz <ogerlitz at voltaire.com>:
> Whouldn't it make more sense to get one time stamp before the i'th posting
> and one tstamp after the i'th completion is reaped from the cq?

That's what we do, anyway - look how this works:

stamp[0]
post
poll
stamp[1]
post
poll
stamp[2]
....

so stamp[i] is taken before the i'th posting
and stamp[i+1] is after the i'th completion.

-- 
MST




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