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b=Rv/vc6Rq3YhE6Vacsb3plHHgWxNahSbe1mNpDtLyb9Uio74S65fjQxTJgNxUExRkv DB6lL/S/394EBIVzKoOBtNMHw3o0gzMpdFJ7jGNznmhAaJKU3LMdDHcrWqodrt3/DK nhKCESyl4IrdiepEdcK/glKszRYQDCcIs/7RTxVu8UZDQOQT8Ydir99zx/UGjNrNOv GrAP5v5AN73YYhp5+oGM3Br73FerFxPt7/5H/MufCscbE3XYgCyVeXFsdNX516iJe7 NkcAF+VjtFjOMibA3owVxDTdEdCDY2Zi9goO1V2u3ffBaq/Xos2lmucHn0a1Fz8RlQ nw4cru+UUv9Eg== From: SeongJae Park To: Ruslan Valiyev Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] selftests/damon/_damon_sysfs: support kdamond refresh_ms Date: Tue, 2 Jun 2026 07:13:49 -0700 Message-ID: <20260602141350.101848-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260602131217.2210912-2-linuxoid@gmail.com> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: D07A0100003 X-Rspam-User: X-Stat-Signature: 9nc8tharakxsjqtan8dbtc7pxk9ewsme X-Rspamd-Server: rspam08 X-HE-Tag: 1780409639-113294 X-HE-Meta: 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 4m2w/oLF Xjl3okg7q6tdGl7lY2Z1NhqCYKAay7/saxwwQXb4f+p3PQkZEJ8qnQtvnaJZ/LH3fSGRvijyx527Srk+O/zt0mddSOxdhTGS4/B3YaRWt6BKEeUUczdJpiZM9HYW6HS9qmdoKbLZXyWsSpYPp1TV4ym7BoLELI0abVJkRVGFUXy++8QldXqdAZZRLu88WW4lCi9qogQNR655K+LX5CPXmARrdKsBI+cXD1ivb62vm9XRk3p3H/c9ZQbWTeWaftfVbSw0DTqeAMHB8S6pN0AlTPXjgtea4KbS3Wue0qEkgtHNG/uY= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 2 Jun 2026 15:12:16 +0200 Ruslan Valiyev wrote: > The Kdamond class has no way to set the kdamond-level 'refresh_ms' sysfs > file, which makes DAMON periodically update the read-only sysfs files > (DAMOS stats, tuned monitoring intervals and the kdamond pid) on its own. > > Add a 'refresh_ms' parameter to Kdamond. When it is set (including to > zero, to disable the periodic update), write it before turning the > kdamond on, so tests can exercise the auto-update behavior. Leaving it > unset keeps the previous behavior of not touching the file, so callers > running against kernels without the feature are unaffected. Nice addition of the feature, thank you! > > Signed-off-by: Ruslan Valiyev Reviewed-by: SeongJae Park Thanks, SJ [...]