From: Arjan van de Ven <arjan@infradead.org>
To: Daniel Walker <dwalker@mvista.com>
Cc: David Miller <davem@davemloft.net>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
jens.axboe@oracle.com, steffen.klassert@secunet.com
Subject: Re: [PATCH 0/2]: Remote softirq invocation infrastructure.
Date: Sat, 20 Sep 2008 08:45:12 -0700 [thread overview]
Message-ID: <20080920084512.58f7fb08@infradead.org> (raw)
In-Reply-To: <1221924561.1343.121.camel@localhost.localdomain>
On Sat, 20 Sep 2008 08:29:21 -0700
>
> > 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?
it means you do all the processing on the CPU that submitted the IO in
the first place, and likely still has the various metadata pieces in
its CPU cache (or at least you know you won't need to bounce them over)
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2008-09-20 15:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-20 6:48 [PATCH 0/2]: Remote softirq invocation infrastructure David Miller
2008-09-20 15:29 ` Daniel Walker
2008-09-20 15:45 ` Arjan van de Ven [this message]
2008-09-20 16:02 ` Daniel Walker
2008-09-20 16:19 ` Arjan van de Ven
2008-09-20 17:40 ` Daniel Walker
2008-09-20 18:09 ` Arjan van de Ven
2008-09-20 18:52 ` Daniel Walker
2008-09-20 20:04 ` David Miller
2008-09-20 19:59 ` David Miller
2008-09-21 6:05 ` Herbert Xu
2008-09-21 6:57 ` David Miller
2008-09-22 10:36 ` Ilpo Järvinen
2008-09-24 4:54 ` Herbert Xu
2008-09-21 9:13 ` James Courtier-Dutton
2008-09-21 9:17 ` David Miller
2008-09-21 9:46 ` Steffen Klassert
2008-09-22 8:23 ` Herbert Xu
2008-09-22 13:54 ` Steffen Klassert
2008-09-20 20:00 ` David Miller
2008-09-22 21:22 ` Chris Friesen
2008-09-22 22:12 ` David Miller
2008-09-23 17:03 ` Chris Friesen
2008-09-23 21:10 ` Tom Herbert
2008-09-23 21:51 ` David Miller
2008-09-24 7:42 ` David Miller
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