From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Antonio Vargas <wind@cocodriloo.com>,
"Shaheed R. Haque" <srhaque@iee.org>
Cc: linux-kernel@vger.kernel.org, thockin@isunix.it.ilstu.edu
Subject: Re: Processor sets (pset) for linux kernel 2.5/2.6?
Date: Sat, 12 Apr 2003 07:54:31 -0700 [thread overview]
Message-ID: <237660000.1050159270@[10.10.2.4]> (raw)
In-Reply-To: <20030412122422.GB9125@wind.cocodriloo.com>
> HT is accounted as a NUMA SMP system with strong memory affinity
> for his 2 cores, so that when running 2 HT processors (2+2 cores),
> the tasks are kept preferably on the same HT processor and just bounce
> cores, since they share the same cache (don't know exactly L1, L2 or
> both, tough).
We don't actually do that right now (though it was discussed) - we treat it
as flat SMP. Ingo had some patches to share 1 runqueue between each HT pair,
which I think is a better plan for this, but we're not seeing much
performance improvment from it.
M.
next prev parent reply other threads:[~2003-04-12 14:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-12 11:20 Processor sets (pset) for linux kernel 2.5/2.6? Shaheed R. Haque
2003-04-12 12:11 ` Dave Jones
2003-04-12 12:24 ` Antonio Vargas
2003-04-12 14:54 ` Martin J. Bligh [this message]
2003-04-12 18:23 ` Robert Love
2003-04-12 19:56 ` Shaheed R. Haque
2003-04-12 20:02 ` Robert Love
2003-04-13 8:30 ` Shaheed R. Haque
2003-04-13 14:28 ` Robert Love
2003-05-13 11:49 ` 2.6 must-fix list, v2 Shaheed R. Haque
2003-05-13 20:02 ` Andrew Morton
2003-05-13 22:46 ` Shaheed R. Haque
2003-05-14 2:42 ` Steven Cole
2003-05-14 11:49 ` Shaheed R. Haque
2003-05-14 13:08 ` Steven Cole
2003-05-13 22:49 ` Shaheed R. Haque
2003-05-14 11:02 ` Felipe Alfaro Solana
2003-05-14 15:59 ` Robert Love
2003-05-14 16:04 ` Robert Love
2003-05-14 21:01 ` shaheed
2003-05-14 21:15 ` Robert Love
2003-05-15 9:19 ` Shaheed R. Haque
2003-05-15 15:32 ` Robert Love
2003-05-15 20:07 ` shaheed
2003-05-15 20:20 ` Robert Love
2003-05-15 20:24 ` Robert Love
2003-05-15 21:30 ` shaheed
2003-04-13 3:52 ` Re: Processor sets (pset) for linux kernel 2.5/2.6? Martin J. Bligh
2003-07-15 11:39 ` [HOWTO] Emulate processor sets (pset) for linux kernel 2.5/2.6 \"shaheed r. haque\"
2003-04-14 22:40 ` [RFC] patch to allow CPUs to be reserved to callers of sys_setaffinity [was Processor sets (pset) for linux kernel 2.5/2.6?] shaheed
2003-05-01 20:19 ` Working .config for a Dell 2650 for 2.5.6x? (was Re: Processor sets (pset) for linux kernel 2.5/2.6?) shaheed
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