Re: Info: NAPI performance at "low" loads
flat view
From: David S. Miller <hidden>
Date: 2002-09-18 01:04:21
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lkml
From: jamal [off-list ref]
Date: Tue, 17 Sep 2002 20:57:58 -0400 (EDT)
I am not so sure with that 6% difference there is no other bug lurking
there; 6% seems too large for an extra two PCI transactions per packet.
{in,out}{b,w,l}() operations have a fixed timing, therefore his
results doesn't sound that far off.
It is also one of the reasons I suspect Andrew saw such bad results
with 3c59x, but probably that is not the only reason.