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C28CC160002 X-Stat-Signature: 7zw1cumimi41x6w3omtftbyempup477o X-Rspam-User: X-Rspamd-Server: rspam09 X-HE-Tag: 1757711564-754806 X-HE-Meta: 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 iSUljA/I 6W2ymphXDEZCIq98goesZzmNGgXkdmEDr1rQFDJqZQMZTsUsC9/2pChjZXdjoJw+rqqLSJ0rgv7Gr87rEYm7KHMzEGEkACcoSMnqY X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Arnaldo Carvalho de Melo writes: > On Tue, Sep 02, 2025 at 01:08:01AM -0700, Ankur Arora wrote: >> This series adds clearing of contiguous page ranges for hugepages, >> improving on the current page-at-a-time approach in two ways: >> >> - amortizes the per-page setup cost over a larger extent >> >> - when using string instructions, exposes the real region size >> to the processor. >> >> A processor could use a knowledge of the extent to optimize the >> clearing. AMD Zen uarchs, as an example, elide allocation of >> cachelines for regions larger than L3-size. >> >> Demand faulting a 64GB region shows performance improvements: >> >> $ perf bench mem map -p $pg-sz -f demand -s 64GB -l 5 > > So, can I go ahead and pull the tools/perf/ bits into perf-tools-next, > Namhyung already reviewed it, the rest can go thru the relevant > channels, ok? Sounds great. I think I have Namhyung's R-by on all but patches 6 and 9. Thanks! -- ankur