* Pin an IRQ to a particular CPU
@ 2007-04-27 1:15 Phy Prabab
2007-04-27 5:24 ` Jan Engelhardt
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Phy Prabab @ 2007-04-27 1:15 UTC (permalink / raw)
To: linux-kernel
Hello,
In an effort to increase over all throughput of my Linux NFS file
server, I thought about trying to force an IRQ, for the NIC, to be
serviced by a particular CPU. Is this possible?
TIA,
Phy
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: Pin an IRQ to a particular CPU
2007-04-27 1:15 Pin an IRQ to a particular CPU Phy Prabab
@ 2007-04-27 5:24 ` Jan Engelhardt
2007-04-27 5:25 ` Jan Engelhardt
2007-04-27 5:31 ` David Schwartz
2 siblings, 0 replies; 4+ messages in thread
From: Jan Engelhardt @ 2007-04-27 5:24 UTC (permalink / raw)
To: Phy Prabab; +Cc: linux-kernel
> Hello,
>
> In an effort to increase over all throughput of my Linux NFS file
> server, I thought about trying to force an IRQ, for the NIC, to be
> serviced by a particular CPU. Is this possible?
http://lkml.org/lkml/2007/4/5/155
Jan
--
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Pin an IRQ to a particular CPU
2007-04-27 1:15 Pin an IRQ to a particular CPU Phy Prabab
2007-04-27 5:24 ` Jan Engelhardt
@ 2007-04-27 5:25 ` Jan Engelhardt
2007-04-27 5:31 ` David Schwartz
2 siblings, 0 replies; 4+ messages in thread
From: Jan Engelhardt @ 2007-04-27 5:25 UTC (permalink / raw)
To: Phy Prabab; +Cc: linux-kernel
On Apr 26 2007 18:15, Phy Prabab wrote:
> Hello,
>
> In an effort to increase over all throughput of my Linux NFS file
> server, I thought about trying to force an IRQ, for the NIC, to be
> serviced by a particular CPU. Is this possible?
Sorry, too early in the morning :)
It is definitely possible, since that is what irqbalance does.
(Not that I know the exact details right now...)
the other URL I posted might give some useful hints too, though.
Jan
--
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: Pin an IRQ to a particular CPU
2007-04-27 1:15 Pin an IRQ to a particular CPU Phy Prabab
2007-04-27 5:24 ` Jan Engelhardt
2007-04-27 5:25 ` Jan Engelhardt
@ 2007-04-27 5:31 ` David Schwartz
2 siblings, 0 replies; 4+ messages in thread
From: David Schwartz @ 2007-04-27 5:31 UTC (permalink / raw)
To: linux-kernel
> Hello,
>
> In an effort to increase over all throughput of my Linux NFS file
> server, I thought about trying to force an IRQ, for the NIC, to be
> serviced by a particular CPU. Is this possible?
>
> TIA,
> Phy
/proc/irq/*/smp_affinity
I would recommend automatic balancing and leave it at that. This code automatically distributes IRQs to CPUs such that each IRQ can only be serviced by a single CPU and the IRQs are distributed over the CPU set.
DS
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-04-27 5:32 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2007-04-27 1:15 Pin an IRQ to a particular CPU Phy Prabab
2007-04-27 5:24 ` Jan Engelhardt
2007-04-27 5:25 ` Jan Engelhardt
2007-04-27 5:31 ` David Schwartz
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