From: Ingo Molnar <mingo@elte.hu>
To: Jesse Barnes <jbarnes@engr.sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
akpm@osdl.org, linux-kernel@vger.kernel.org,
linux-ia64@vger.kernel.org, John Hawkes <hawkes@sgi.com>
Subject: Re: [PATCH] add scheduler domains for ia64
Date: Fri, 20 Aug 2004 08:06:21 +0000 [thread overview]
Message-ID: <20040820080621.GA2310@elte.hu> (raw)
In-Reply-To: <200408192222.35512.jbarnes@engr.sgi.com>
* Jesse Barnes <jbarnes@engr.sgi.com> wrote:
> This patch adds some more NUMA specific logic to the creation of
> scheduler domains. Domains spanning all CPUs in a large system are
> too large to schedule across efficiently, leading to livelocks and
> inordinate amounts of time being spent in scheduler routines. With
> this patch applied, the node scheduling domains for NUMA platforms
> will only contain a specified number of nearby CPUs, based on the
> value of SD_NODES_PER_DOMAIN. It also allows arches to override
> SD_NODE_INIT, which sets the domain scheduling parameters for each
> node's domain. This is necessary especially for large systems.
looks good to me too.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo
prev parent reply other threads:[~2004-08-20 8:06 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-13 18:08 [PATCH] add scheduler domains for ia64 Jesse Barnes
2004-08-14 3:23 ` Nick Piggin
2004-08-14 20:52 ` Jesse Barnes
2004-08-15 0:54 ` Nick Piggin
2004-08-17 20:57 ` Jesse Barnes
2004-08-20 2:11 ` Nick Piggin
2004-08-20 2:22 ` Jesse Barnes
2004-08-20 6:28 ` Andrew Morton
2004-08-20 14:57 ` Jesse Barnes
2004-08-20 8:06 ` Ingo Molnar [this message]
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