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b=hrtaON3lluhILxsDmGjMLJkWvBV5Pu5iVtIu4aBxZytPYMAh9RGWmzbVgNiWfy/Zt iGK/dQndwuyOK/t+Q+02gAAz0xZ5YjKQAc1DfgXgmQ8ChJfTyU1hZtb3Ef3hdRevu3 VRYunv4LniTGy/fhxZQ3E0cYulJdSy3ZDl9pnyKbPI6AdOYt4tJ4LyWPcah7TR2o/v dDlGj1pEv5koHErR8j4+kTxYkbcheIKRhjJyjAiXDhqJaJrVw9Wbc39ardBx+UM+eF Zv84n87GLrdrenCQrns5nhNZe+f1MYuQlQoNENosx1gm002LxIJvCvkpVN6L91V7rC fg0gjX7Y/ttXA== From: SeongJae Park To: Gutierrez Asier Cc: SeongJae Park , artem.kuzin@huawei.com, stepanov.anatoly@huawei.com, wangkefeng.wang@huawei.com, yanquanmin1@huawei.com, zuoze1@huawei.com, damon@lists.linux.dev, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v1 0/4] mm/damon: Introduce a huge page collapsing mechanism using auto tuning Date: Wed, 6 May 2026 09:41:02 -0700 Message-ID: <20260506164103.6414-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <2446b1e8-2b9a-4621-bbb3-ccec0f1aa604@huawei-partners.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: kdopckfztmkufc1a1dw4g9575i4hy6ky X-Rspamd-Queue-Id: 5B5481C0017 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1778085669-150302 X-HE-Meta: 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 uLsUMM/4 97b3a0yx5DK4/FQIr+4G/kxiBzul1p99sscklT4KdGlYSQ640YOSd9lwAnTBBhfqQNTjswJb3YyRmAb3eUsv39uSxntQRctP2eL8orAyCsFDlyU14AQ4slf2QkmObhtRgW/0g39wyqo1cRsnUH5xsE4Gh0XUz5V/n8whh4/r0Qhv/IEkTf41GNNNIjPawAJpuSVP1AaLF6NtcoAFeEJF4BBXziYXoR87g8TK045LOX3wkoFAsr63jRTH82BoUln6xBgL8TVKrOapu6PHDkKnSJWarPQSD6ivEPTvLTgze6DbdQV46F54nqKBt+A== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 4 May 2026 16:52:01 +0300 Gutierrez Asier wrote: > On 5/1/2026 3:41 AM, SeongJae Park wrote: > > Hello Asier, > Hi, sorry for the delayed answer. No worry, no rush. Take your time :) > > > > On Thu, 30 Apr 2026 13:41:35 +0000 wrote: [...] > >> A new module is introduced to demonstrate the use of huge pages > >> collapse autotuning. The module launches a kdamond thread for a > >> certain task provided by the user through monitored_pid module argument. > > > > If it is only for demonstration, I think it is more fit to be a sample module > > (placed under samples/damon/). > We are testing this in a bare metal MySQL server. Maybe the description > was not the most accurate. Do you mean it is not only for demonstration but a real world use case and therefore better not to be a sample module? > >> > >> This module also has a user autotuning knob which allows the user to > >> adjust the aggressiveness of page collapsing. > >> > >> Benchmarks > >> ================ > >> In progress, will add them in the next RFC series. > > > > Looking forward to! > > > > I may request not that much test results for the quota goal. If the module is > > not just a sample but for a real world use case, I may hope somewhat reasonable > > test resulsts. > OK, will do it. Thank you for kindly and flexibly accepting my humble suggestions :) Thanks, SJ [...]