Messages in this thread | | | Subject | Re: [PATCH] 0/2 Buddy allocator with placement policy + prezeroing | From | Dave Hansen <> | Date | Mon, 28 Feb 2005 08:12:07 -0800 |
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On Sun, 2005-02-27 at 13:42 +0000, Mel Gorman wrote: > In the two following emails are the latest version of the placement policy > for the binary buddy allocator to reduce fragmentation and the prezeroing > patch. The changelogs are with the patches although the most significant change > to the placement policy is a fix for a bug in the usemap size calculation > (pointed out by Mike Kravetz). > > The placement policy is Even Better than previous versions and can allocate > over 100 2**10 blocks of pages under loads in excess of 30 so I still > consider it ready for inclusion to the mainline. ...
This patch does some important things for memory hotplug: it explicitly marks the different types of kernel allocations, and it separates those different types in the allocator. When it comes to memory hot-remove this is certainly something we were going to have to do anyway. Plus, I believe there are already at least two prototype patches that do this.
Anything that makes future memory hotplug work easier is good in my book. :)
-- Dave
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