Network Performance: SMP 2.4 vs 2.6
laforge at netfilter.org
Thu Dec 16 13:18:58 CET 2004
On Fri, Nov 12, 2004 at 11:53:32AM +0100, Jens Hektor wrote:
> Load is generated by having throughput of ~400Mbits (day-average) with
> heavy connection-tracking (200k - 300k conntrack states).
> Load on machine A is distributed over 2 CPUs,
> load on machine B is tied to one CPU.
> Hyperthreading is enabled on both.
> Can someone hint me in the right direction
> which tunable to set to get the 2.4 behaviour on 2.6?
probably you or your distribution configured irq_affinity in a way to
route all NIC interrupts to one particular cpu.
- Harald Welte <laforge at netfilter.org> http://www.netfilter.org/
"Fragmentation is like classful addressing -- an interesting early
architectural error that shows how much experimentation was going
on while IP was being designed." -- Paul Vixie
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