From time to time I "play" with netperf on different systems. I happen
to have occasion to play with a T2000. Under Solaris 10 I am able to
coerce the interrupts of the different core GbEs to be on different
cores rather than strands of the same core.
Under a 2.6.15 kernel (Ubuntu Dapper) it would appear that the old
standby of "echo affinity mask to the IRQ" doesn't "work" - no matter
how I change the mask for a NIC, running a netperf TCP_RR test seems to
show the interrupts happening on the same strand.
Is it indeed not possible to alter the interrupt assignments or have I
(as I'm wont to do) missed something quasi-obvious?
thanks,
rick jones
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