[openib-general] heads-up - ipoib NAPI

Eli cohen eli at dev.mellanox.co.il
Thu Sep 21 07:56:32 PDT 2006


Hi,

I have a draft implementation of NAPI in ipoib and got the following
results:

System descriptions
===================
Quad CPU E64T 2.4 Ghz
4 GB RAM
MT25204 Sinai HCA

I used netperf for benchmarking, the BW test ran for 600 seconds with 8
clients and 8 servers.

The results I received are bellow:

netperf TCP_STREAM:
		BW [MByte/sec]    clients side [irqs/sec]   server side [irqs/sec]
		--------------    -----------------------   ----------------------
without NAPI:       506                    86441                   66311
with NAPI:          550                     6830                   13600 


netperf TCP_RR:
		rate [tran/sec]
                ---------------
without NAPI:      39600
with NAPI:         39470



Please note this is still under work and we plan to do more tests and
measure on other devices.





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