From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: "'Christoph Lameter'" <clameter@engr.sgi.com>,
"Adam Litke" <agl@us.ibm.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>, <akpm@osdl.org>
Subject: RE: [PATCH] dequeue a huge page near to this node
Date: Thu, 10 Nov 2005 15:34:01 -0800 [thread overview]
Message-ID: <200511102334.jAANY1g21612@unix-os.sc.intel.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0511101521180.16770@schroedinger.engr.sgi.com>
Christoph Lameter wrote on Thursday, November 10, 2005 3:27 PM
> The following patch changes the dequeueing to select a huge page near
> the node executing instead of always beginning to check for free
> nodes from node 0. This will result in a placement of the huge pages near
> the executing processor improving performance.
>
> The existing implementation can place the huge pages far away from
> the executing processor causing significant degradation of performance.
> The search starting from zero also means that the lower zones quickly
> run out of memory. Selecting a huge page near the process distributed the
> huge pages better.
Looks great!
- Ken
next prev parent reply other threads:[~2005-11-10 23:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-10 23:27 Christoph Lameter
2005-11-10 23:34 ` Chen, Kenneth W [this message]
2005-11-11 0:44 ` Christoph Lameter
2005-11-11 0:51 ` William Lee Irwin III
2005-11-11 0:51 ` William Lee Irwin III
2005-11-11 14:19 ` Adam Litke
2005-11-11 17:33 ` Christoph Lameter
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