528 reputation
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bio website craters-of-the-mind.blogspot.…
location Moscow, Russia
age 32
visits member for 4 years, 11 months
seen Apr 3 at 10:03

:-)

mailto: ag@logiceditor.com


Nov
9
revised How to change SMP affinity of an IRQ on Ubuntu PV domU inside Xen XCP?
irqbalance is running
Nov
9
comment How to change SMP affinity of an IRQ on Ubuntu PV domU inside Xen XCP?
Correct. I'll update the question.
Nov
9
comment How to change SMP affinity of an IRQ on Ubuntu PV domU inside Xen XCP?
Does not work, see update to the question.
Nov
9
revised How to change SMP affinity of an IRQ on Ubuntu PV domU inside Xen XCP?
added info on error
Nov
7
comment CPU0 is swamped with eth1 interrupts
I've got an impression that smp_affinity_list is not supported in 2.6. Also, I did try that in hex, actually... Anyway, moving this to a question I linked to — will try tomorrow.
Nov
7
comment CPU0 is swamped with eth1 interrupts
serverfault.com/questions/446304/…
Nov
7
asked How to change SMP affinity of an IRQ on Ubuntu PV domU inside Xen XCP?
Nov
7
comment CPU0 is swamped with eth1 interrupts
Erm. No, still can't change that. Can't figure out what is going on. Will ask a separate question for that.
Nov
7
comment CPU0 is swamped with eth1 interrupts
Nevermind that — I tried it on wrong machine with 4 cores instead of 8.
Nov
7
comment CPU0 is swamped with eth1 interrupts
BTW, I see /proc/irq/283/affinity_hint, but can't find proper docs for it. Can't this be related?
Nov
7
comment CPU0 is swamped with eth1 interrupts
echo $((2**8-1)) | sudo tee /proc/irq/283/smp_affinity gives me Input/output error (irqbalance is stopped).
Nov
7
comment CPU0 is swamped with eth1 interrupts
Disabling irqbalance (via ENABLED=0 in /etc/default/irqbalance) does not help. After reboot irqbalance is stop/waiting, but /proc/irq/283/smp_affinity is still 01.
Nov
7
comment CPU0 is swamped with eth1 interrupts
FYI: /proc/irq/283/smp_affinity has 01 in it now (nobody changed that stuff on this machine to the best of my knowledge — so this must be system default).
Nov
7
comment CPU0 is swamped with eth1 interrupts
irqbalance already is running. Maybe it is not configured correctly? How to check that?
Nov
7
comment CPU0 is swamped with eth1 interrupts
Bonus question: is there a way to lessen the number of interrupts from eth1?
Nov
7
comment Uneven CPU core utilization
Asked a question on how to fix that: serverfault.com/questions/446173/…
Nov
7
asked CPU0 is swamped with eth1 interrupts
Nov
7
comment Uneven CPU core utilization
@DavidSchwartz: looks like you're right, thanks!
Nov
7
revised Uneven CPU core utilization
grr
Nov
7
answered Uneven CPU core utilization