Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH -mm 2/2] mm: do not reset mm->free_area_cache on every single munmap | Date | Thu, 23 Feb 2012 13:57:42 -0800 |
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Rik van Riel <riel@redhat.com> writes:
> Some programs have a large number of VMAs, and make frequent calls > to mmap and munmap. Having munmap constantly cause the search > pointer for get_unmapped_area to get reset can cause a significant > slowdown for such programs.
This would be a much nicer patch if you split it into one that merges all the copy'n'paste code and another one that actually implements the new algorithm.
-Andi
-- ak@linux.intel.com -- Speaking for myself only
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