On Mon, 2007-09-17 at 15:12 -0500, Olof Johansson wrote: > Hook up affinity-setting for U3/U4 MSI interrupt sources. > > Tested on Quad G5 with myri10ge.
And a JS21 blade:
# echo 1 > /proc/irq/21/smp_affinity
# cat /proc/interrupts
CPU0 CPU1
21: 126 375 MPIC-U3MSI Edge eth1
# ping -c 1000 -f cradle
1000 packets transmitted, 1000 received, 0% packet loss, time 135ms
# cat /proc/interrupts
CPU0 CPU1
21: 2153 375 MPIC-U3MSI Edge eth1
# echo 2 > /proc/irq/21/smp_affinity
# cat /proc/interrupts
CPU0 CPU1
21: 2174 379 MPIC-U3MSI Edge eth1
# ping -c 1000 -f cradle
1000 packets transmitted, 1000 received, 0% packet loss, time 138ms
# cat /proc/interrupts
CPU0 CPU1
21: 2174 2389 MPIC-U3MSI Edge eth1
Acked-by: Michael Ellerman <[EMAIL PROTECTED]>
cheers
--
Michael Ellerman
OzLabs, IBM Australia Development Lab
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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