Re: Early SPECWeb99 results on 2.5.33 with TSO on e1000

From: David S. Miller (davem@redhat.com)
Date: Fri Sep 06 2002 - 02:22:53 EST

   From: Andrew Morton <akpm@zip.com.au>
   Date: Fri, 06 Sep 2002 00:36:04 -0700

   "David S. Miller" wrote:
> NAPI is also not the panacea to all problems in the world.
   
   Mala did some testing on this a couple of weeks back. It appears that
   NAPI damaged performance significantly.

   http://www-124.ibm.com/developerworks/opensource/linuxperf/netperf/results/july_02/netperf2.5.25results.htm

Unfortunately it is not listed what e1000 and core NAPI
patch was used. Also, not listed, are the RX/TX mitigation
and ring sizes given to the kernel module upon loading.

Robert can comment on optimal settings

Robert and Jamal can make a more detailed analysis of Mala's
graphs than I.
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