linux-kernel - Re: [PATCH 0/2]: Remote softirq invocation infrastructure.

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Message-Id: <1221924561.1343.121.camel@localhost.localdomain>
Date:	Sat, 20 Sep 2008 08:29:21 -0700
From:	Daniel Walker <dwalker@...sta.com>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	jens.axboe@...cle.com, steffen.klassert@...unet.com
Subject: Re: [PATCH 0/2]: Remote softirq invocation infrastructure.

On Fri, 2008-09-19 at 23:48 -0700, David Miller wrote:
> Jens Axboe has written some hacks for the block layer that allow
> queueing softirq work to remote cpus.  In the context of the block
> layer he used this facility to trigger the softirq block I/O
> completion on the same cpu where the I/O was submitted.
> 

> Jen's, as stated, has block layer uses for this.  I intend to use this
> for receive side flow seperation on non-multiqueue network cards.  And
> Steffen Klassert has a set of IPSEC parallelization changes that can
> very likely make use of this.

What's the benefit that you (or Jens) sees from migrating softirqs from
specific cpu's to others?

Daniel

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