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b=N8x+9Y/7FBWoZhOXJBckURArIzGN8dv0F2x9lMKlxqAuLh7RQOs6+rrwT0K2w8C7F 1xduqjaCf/IQHqRP2YjyiSKtK7UwuskcUM6PiwEY01gMzLPRQzJKGjoX/fjFZ5Su3W SQPaDFbGrpK6MNkpB9lvWgfNKdwxVlAtqAjAJOoA= Date: Tue, 19 Aug 2025 14:55:30 -0700 From: Andrew Morton To: Nico Pache Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, ryan.roberts@arm.com, dev.jain@arm.com, corbet@lwn.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, baohua@kernel.org, willy@infradead.org, peterx@redhat.com, wangkefeng.wang@huawei.com, usamaarif642@gmail.com, sunnanyong@huawei.com, vishal.moola@gmail.com, thomas.hellstrom@linux.intel.com, yang@os.amperecomputing.com, kirill.shutemov@linux.intel.com, aarcange@redhat.com, raquini@redhat.com, anshuman.khandual@arm.com, catalin.marinas@arm.com, tiwai@suse.de, will@kernel.org, dave.hansen@linux.intel.com, jack@suse.cz, cl@gentwo.org, jglisse@google.com, surenb@google.com, zokeefe@google.com, hannes@cmpxchg.org, rientjes@google.com, mhocko@suse.com, rdunlap@infradead.org, hughd@google.com Subject: Re: [PATCH v10 00/13] khugepaged: mTHP support Message-Id: <20250819145530.243e02184b743eb9ec506856@linux-foundation.org> In-Reply-To: <20250819134205.622806-1-npache@redhat.com> References: <20250819134205.622806-1-npache@redhat.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: tjsarwsmmxkbb7pz93up3ygj4a5h3wjy X-Rspam-User: X-Rspamd-Queue-Id: 9DA104000B X-Rspamd-Server: rspam01 X-HE-Tag: 1755640533-79547 X-HE-Meta: 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 C5Ac/3Dy HDl4SFHIAEwT0XjVAE3KGgQZmt+vz8uDck2hRcA4xNM2E3q+sd2C/GYWEld6BoF8kVVu0oa+N4AmoX/wqCotSKlYmLzXLhDkjxwkMMnwfGOi2QeYcq80AxLuaUAG++xe9C2mQ90BUVZwnNLrWUzSbjZnMtDgoTXQPDVse5hD+pc0JK1vi29Z8kWz+m8on8KLoII4nXh5c/o1FxWNIYY29RoFXQj2rvAznJ5RtWQYZUTADq6ACAxcM2fGQ7O04QD5PZMymanur4GVGDlBsvUaIoMi99jwJzCfYh2zZEHnbsNl+24SSKLJtvOFiIiiz2VJ/w/0DFesNXVUB5iKmwAstzz5LTg== 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: On Tue, 19 Aug 2025 07:41:52 -0600 Nico Pache wrote: > The following series provides khugepaged with the capability to collapse > anonymous memory regions to mTHPs. > > ... > > - I created a test script that I used to push khugepaged to its limits > while monitoring a number of stats and tracepoints. The code is > available here[1] (Run in legacy mode for these changes and set mthp > sizes to inherit) Could this be turned into something in tools/testing/selftests/mm/? > V10 Changes: I'll add this to mm-new, thanks. I'll suppress the usual emails.