On Thu, May 11, 2006 at 11:54:09AM -0700, David S. Miller ([EMAIL PROTECTED])
wrote:
> BTW you make another massively critical error in your analysis of TCP
> profiles.
>
> You mention that "tcp_v4_rcv()" shows up in your profiles and not
> __inet_lookup(). This __inet_lookup() is inlined, and thus it's cost
> shows up as "tcp_v4_rcv()". I find such oversight amazing for someone
> as careful about details as you are :-)
Ugh, my fault.
But tcp_v4_rcv() also does a lot of other things which more likely
pushes this function in profile statistics :)
> I would suggest to look at instruction level profile hits, it makes
> such mistakes in analysis almost impossible :-)
It is much more challenging than running oprofile, so it will be
postponed for a while :)
--
Evgeniy Polyakov
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