Messages in this thread | | | Date | Tue, 29 Apr 2008 09:27:53 -0400 | From | "Ross Biro" <> | Subject | Re: [PATCH 1/2] MM: Make page tables relocatable -- conditional flush (rc9) |
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On Wed, Apr 16, 2008 at 3:22 PM, Christoph Lameter <clameter@sgi.com> wrote: > The patch is interesting because it would allow the moving of page table > pages into MOVABLE sections and reduce the size of the UNMOVABLE > allocations signficantly (Ross: We need some numbers here). This in turn
Is there a standard test used to evaluate kernel memory fragmentation? I'm sure I can rig up a test to create huge amounts of fragmentation with about 1/2 the pages being page tables. However, I doubt that it would reflect any real loads. Similarly, if I check the memory fragmentation on my test system right after it's been booted, I won't see much fragmentation and page tables won't be causing any trouble.
Ross
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