[arch-dev-public] New package: irqbalance
paul at mattal.com
Thu Oct 23 22:52:46 EDT 2008
On Oct 23, 2008, at 7:35 PM, Dan McGee wrote:
> Does anyone have any comments on pulling a new package into our
> repos (extra)?
> What is irqbalance?
> irqbalance is a Linux* daemon that distributes interrupts over the
> processors and cores you have in your computer system. The design goal
> of irqbalance is to do find a balance between power savings and
> optimal performance. To a large degree, the work irqbalance does is
> invisible to you; if irqbalance performs its job right, nobody will
> ever notice it's there or want to turn it off.
> I was poking around gerolde today and noticed the following, which
> this daemon is supposed to fix:
> $ cat /proc/interrupts
> CPU0 CPU1 CPU2 CPU3
> 0: 167 0 0 24048 IO-APIC-edge
> 34: 0 0 0 1557024287 IO-APIC-fasteoi
> 64: 0 0 0 2309314931 IO-APIC-fasteoi
> LOC: 1044939304 862822858 922819431 1061796506 Local timer
> RES: 47509379 41864565 96191013 60946968 Rescheduling
> CAL: 28955 30778 32683 31325 function call
> TLB: 42452901 45130904 34918196 34859372 TLB shootdowns
> Notice how CPU3 is handling every single hardware interrupt on our
> system, and we have a LOT of them from our disk and ethernet
> controllers. Balancing some of this across processors should help, and
> this program takes care of that. I've been running it locally on my
> machine and it seems to work as advertised.
Sounds like a great package to me! +1
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