[arch-dev-public] New package: irqbalance

[Dan McGee]

On Thu, Oct 23, 2008 at 9:52 PM, Paul Mattal <paul at mattal.com> wrote:
>
> 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)?
>>
>> irqbalance:
>> http://aur.archlinux.org/packages.php?ID=10804
>> http://www.irqbalance.org/
>>
>> 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      timer
>> 34:          0          0          0 1557024287   IO-APIC-fasteoi   ioc0
>> 64:          0          0          0 2309314931   IO-APIC-fasteoi   eth0
>> LOC: 1044939304  862822858  922819431 1061796506   Local timer interrupts
>> RES:   47509379   41864565   96191013   60946968   Rescheduling interrupts
>> CAL:      28955      30778      32683      31325   function call
>> interrupts
>> 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

It's in extra now for both architectures. Let me know if anyone sees
any problems- I'd like to get this on gerolde and see how it works.

-Dan