Re: [Patch 3/3] Convert link_mem_sections to usefind_memory_block_hinted.

From: KAMEZAWA Hiroyuki
Date: Wed Sep 29 2010 - 22:06:47 EST


On Wed, 29 Sep 2010 14:00:56 -0500
Robin Holt <holt@xxxxxxx> wrote:

>
> Modify link_mem_sections() to pass in the previous mem_block as a hint to
> locating the next mem_block. Since they are typically added in order this
> results in a massive saving in time during boot of a very large system.
> For example, on a 16TB x86_64 machine, it reduced the total time spent
> linking all node's memory sections from 1 hour, 27 minutes to 46 seconds.
>
> Signed-off-by: Robin Holt <holt@xxxxxxx>
> To: Gary Hade <garyhade@xxxxxxxxxx>
> To: Badari Pulavarty <pbadari@xxxxxxxxxx>
> To: Ingo Molnar <mingo@xxxxxxx>
> Cc: lkml <linux-kernel@xxxxxxxxxxxxxxx>
>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

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