From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9DC1D30AD1A; Wed, 6 May 2026 16:41:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778085668; cv=none; b=sqi5DN23w4XWJV1k3IFWKhDqiDh0cIbkPaDajSCXiQECc+q+1LxagAFQ/93golXvggFeLLH2TyXtwOQI2JILT5rL1QnSJJMV5f1DQqTr6MFLsAYFPlROkFZ1chb5ApywcQYWHgs0SNN/3d5eX5ZgD93jiw4HSvKXM/WrMDC2RNs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778085668; c=relaxed/simple; bh=sjh30b3c1z/W1cQGXVs6VKN8mBptz52vyltQa8qkOPk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mArzOtLRJV1mAC03ZOeooYZ7zqXlwD+mHbwGER9YSzyv1oFCwRoCtl3hZDXXiJMkjqi6bNRX2JH48nqfe3q4KOBJJULuJjPNtFNwNHw/6KJ6vkxfmFp0wkWWrTmL3iWk8NOBYnXAJxFGHJLd5B67iCyTwgnefY44QGjCsnmBn+g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hrtaON3l; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hrtaON3l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A988AC2BCB0; Wed, 6 May 2026 16:41:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778085668; bh=sjh30b3c1z/W1cQGXVs6VKN8mBptz52vyltQa8qkOPk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; 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: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 [...]