linux-kernel - RE: Pin an IRQ to a particular CPU

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Message-ID: <MDEHLPKNGKAHNMBLJOLKIEJJDFAC.davids@webmaster.com>
Date:	Thu, 26 Apr 2007 22:31:28 -0700
From:	"David Schwartz" <davids@...master.com>
To:	<linux-kernel@...r.kernel.org>
Subject: RE: Pin an IRQ to a particular CPU


> 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


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