[arch-dev-public] New package: irqbalance

[Paul Mattal]

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

- P