Messages in this thread | | | From | Naoya Horiguchi <> | Subject | Re: [PATCH 1/6] pagemap: avoid splitting thp when reading /proc/pid/pagemap | Date | Mon, 30 Jan 2012 14:23:52 -0500 |
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On Sun, Jan 29, 2012 at 09:17:32PM +0800, Hillf Danton wrote: > Hi Naoya > > On Sat, Jan 28, 2012 at 7:02 AM, Naoya Horiguchi > <n-horiguchi@ah.jp.nec.com> wrote: > > Thp split is not necessary if we explicitly check whether pmds are > > mapping thps or not. This patch introduces this check and adds code > > to generate pagemap entries for pmds mapping thps, which results in > > less performance impact of pagemap on thp. > > > > Could the method proposed here cover the two cases of split THP in mem cgroup?
No for now, but yes if "move charge" function supports THP. I think this can be a bit large step so it is the next work.
Thanks, Naoya
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