[ofa-general] Re: [PATCH 0/5]: Improve small UDP messages
chas williams - CONTRACTOR
chas at cmf.nrl.navy.mil
Sun Feb 3 12:30:41 PST 2008
In message <1202027602.5839.11.camel at mtls03>,Eli Cohen writes:
>> > On the receive side the code is changed to post to receive queue once in
>> > 16 completions. This is done in for both UD and and CM.
>> Ohmm, have you tested latency? I think it will increase latency for
>> small messages.
>I see also improvement in latency. I used netperf -t UDP_RR and -t
>TCP_RR and in both cases I improvement.
this is just going to affect the resupply of rx buffers if i understand
the code correctly. this wont delay the arrival of packets but perhaps
it should be some fraction of the rq length instead of just 16.
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