From: David Miller <davem@davemloft.net>
To: dwalker@mvista.com
Cc: arjan@infradead.org, 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 13:00:58 -0700 (PDT) [thread overview]
Message-ID: <20080920.130058.90080260.davem@davemloft.net> (raw)
In-Reply-To: <1221926529.1343.140.camel@localhost.localdomain>
From: Daniel Walker <dwalker@mvista.com>
Date: Sat, 20 Sep 2008 09:02:09 -0700
> In the case of networking and block I would think a lot of the softirq
> activity is asserted from userspace.. Maybe the scheduler shouldn't be
> migrating these tasks, or could take this softirq activity into
> account ..
Absolutely wrong.
On a per-flow basis you want to push the work down as far
as possible down to individual cpus. Why do you think the
hardware folks are devoting silicon to RX multiqueue facilities
that spread the RX work amongst available cpus using MSI-X?
next prev parent reply other threads:[~2008-09-20 20:01 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
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 [this message]
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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