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polluting one or more levels of the data-cache.) > > As a secondary benefit, string instructions are typically microcoded, > and so it's a good idea to amortize the cost of the decode across larger > regions. > > Accordingly, clear_huge_page() now does huge-page clearing in three > parts: the neighbourhood of the faulting address, the left, and the > right region of the neighbourhood. > > The local neighbourhood is cleared last to keep its cachelines hot. > [...] > > Signed-off-by: Ankur Arora > --- > arch/x86/mm/hugetlbpage.c | 54 +++++++++++++++++++++++++++++++++++++++ > 1 file changed, 54 insertions(+) > Hello Ankur, Just thinking loud here (w.r.t THP). V3 patchset with uarch changes had changes in THP path too, where one could explicitly give hints or non-caching hints. and they are passed down to call incoherent clearing. IMO, those changes logically belong to uarch optimizations.. right?