Re: userspace irq balancer

From: Arjan van de Ven (arjanv@redhat.com)
Date: Wed May 21 2003 - 15:16:01 EST

Next message: Morten Helgesen: "Re: [Bug 734] New: compilation parse error in mwavedd.h before "wait_queue_head_t""
Previous message: Duncan Sands: "[PATCH] spin_lock_irq debugging"
In reply to: James Bottomley: "Re: userspace irq balancer"
Next in thread: Nakajima, Jun: "RE: userspace irq balancer"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On Wed, 2003-05-21 at 18:31, James Bottomley wrote:
> I'm interested in using this for voyager. However, I have a problem in
> that voyager may have CPUs that can't accept interrupts (this is global
> on voyager, but may be per-interrupt on NUMA like systems). I think
> before we move to a userspace solution, some thought about how to cope
> with this is needed.
>
> I have several suggestions:
>
> 1. Place the masks into /proc/irq/<n>/smp_affinity at start of day and
> have the userspace irqbalancer take this as the maximal mask
>
> 2. Have a separate file /proc/irq/<n>/mask(?) to expose the mask always
>
> 3. Some other method...

I would prefer the second method.

application/pgp-signature attachment: This is a digitally signed message part

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Next message: Morten Helgesen: "Re: [Bug 734] New: compilation parse error in mwavedd.h before "wait_queue_head_t""
Previous message: Duncan Sands: "[PATCH] spin_lock_irq debugging"
In reply to: James Bottomley: "Re: userspace irq balancer"
Next in thread: Nakajima, Jun: "RE: userspace irq balancer"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Fri May 23 2003 - 22:00:46 EST