Eric Dumazet a écrit :
Christoph Lameter a écrit :
AIM9 results:
TCP UDP
2.6.22 104868.00 489970.03
2.6.28-rc5 110007.00 518640.00
net-next 108207.00 514790.00
net-next looses here for some reason against 2.6.28-rc5. But the numbers
are better than 2.6.22 in any case.
I found that on current net-next, running oprofile in background can
give better bench
results. Thats really curious... no ?
So the single loop on close(socket()), on all my 8 cpus is almost 10%
faster if oprofile
is running... (20 secs instead of 23 secs)
Oh well, thats normal, since when a cpu is interrupted by a NMI, and
distracted by oprofile code, it doesnt fight with other cpus on dcache_lock
and other contended cache lines...
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