Re: [PATCH] dequeue a huge page near to this node
From: Adam Litke (agl_at_us.ibm.com)
Date: 11/11/05
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To: Christoph Lameter <clameter@engr.sgi.com> Date: Fri, 11 Nov 2005 08:19:25 -0600
On Thu, 2005-11-10 at 15:27 -0800, Christoph Lameter wrote:
> 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.
>
> Signed-off-by: Christoph Lameter <clameter@sgi.com>
I'll add my voice to the chorus of aye's.
-- Adam Litke - (agl at us.ibm.com) IBM Linux Technology Center - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Junichi Uekawa: "Re: [x86_64] 2.6.14-git13 mplayer fails with "v4l2: ioctl queue buffer failed: Bad address" (2 Nov 2005, 11 Nov 2005)"
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