From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 601EFC79FB9 for ; Thu, 10 Sep 2026 14:23:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 699BC6B00B0; Thu, 10 Sep 2026 10:22:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 64AAB6B00B1; Thu, 10 Sep 2026 10:22:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4EB846B00B4; Thu, 10 Sep 2026 10:22:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 25E036B00B0 for ; Thu, 10 Sep 2026 10:22:46 -0400 (EDT) Received: from smtpin11.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 5722414052C for ; Thu, 10 Sep 2026 14:22:45 +0000 (UTC) X-FDA: 85198068690.11.C77E700 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf28.hostedemail.com (Postfix) with ESMTP id C4E29C0003 for ; Thu, 10 Sep 2026 14:22:43 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=PHd53DEN; spf=pass (imf28.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1789050163; b=MiU3S+zDoOcMu9/AmJg3cF7FfIqqQFxM3O/RebAD4gwbeZN26R0nQwbOZmhUik85zHuA5v 5fFdf/PtsXoEwV4Kk1jjpeUYcjkrBLS9RalOP4YJPuT5BEibgszsGy93LuMXG72zsXmngI dDLeT/PSuWeqTYaiiZEFRnRaFnv2fUo= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=PHd53DEN; spf=pass (imf28.hostedemail.com: domain of sj@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1789050163; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=YGHkp73SOXJ8OAqpC14uJPbey8Nk7EBIVu4GrdElavM=; b=YrVPC+Z6LYYqoEJ48xlmVugX6/177OBar7z1OrZaXwUOD6aGQ1mS7sbPvxpPGEYKBb/tu5 sJmKBHrJirKimmliFcJ/sPO1o9A0/xTkF26/VKqI92t6g8KCWvIt0G/Ule7vLG7YCFhQoV w36dkfCgtR6naTg/S11vMHv8enCJi90= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 6CCED60211; Thu, 10 Sep 2026 14:22:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B7331F00899; Thu, 10 Sep 2026 14:22:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789050163; bh=YGHkp73SOXJ8OAqpC14uJPbey8Nk7EBIVu4GrdElavM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=PHd53DENUTYY7vRprpcZNyTffPeiy3FX1l+LpLOaJ55At22n08OvMdQCJlAXl8F+8 LALmvYW7gCkPjpkRQtX2T3Mcw5W0WpjIvwQA8LRu3yys4AbCX1J4ynA71Up27O4MA0 6Xw22Nyq8cuPVGOBdaePl/56vY0RLZcutZTcebwJvt7tpQUnUmhjIJ3JOixbHVP5aH Nhghcv3il2U11FMStdmxyP+q2rDqXcAaeiK7Dv7ghzuCS+hEdUboEgtMUvzhoji3/m 9OU/JJe4K8worscSK8pkDxyxuV4LQZYh9+qtGmqHrJgASDlrAQhY2AY3Wf5aTfAViI +e+co2v/riEmA== From: SJ Park To: Andrew Morton Cc: SJ Park , "Liam R. Howlett" , David Hildenbrand , Jonathan Corbet , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Randy Dunlap , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , damon@lists.linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 5/5] Docs/mm/damon/design: update for pgidle_set probe filter Date: Thu, 10 Sep 2026 07:22:32 -0700 Message-ID: <20260910142234.171562-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260910142234.171562-1-sj@kernel.org> References: <20260910142234.171562-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C4E29C0003 X-Stat-Signature: 5u1zxom3wr7ao3z745mjr4uuombdfw7o X-HE-Tag: 1789050163-24603 X-HE-Meta: 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 8CwofJq0 ++ffgW9bftZh7iTaqjTlTrBm5P+75k8cTjUP1P77h+MEjr6zZ8wN9WqtkSx2hZ9KzRnek6Ez3Egju2/qcLlXWhiO/KwPsZQ+DLg7pxLPjUbr8S5t0gtz5mrF4wurZjOyMLldyxG0aFGjCclmSh9FcfRCk/QZzRTmPI43gMmYqSU8ucdfzw++XfscO+7bTcPUBTVZUMZQB5KtL0D9xkipR/cWr6c+zN/1LcpPIaZJyHcGYq2Tm6mDNF/MZh3tD2TrxJRZrJy7+1VTy5qrgmqnEy229XQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Update DAMON design document for the newly added pgidle_set probe filter type. Signed-off-by: SJ Park --- Documentation/mm/damon/design.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/mm/damon/design.rst b/Documentation/mm/damon/design.rst index 8e980dde362de..cb116a82ff20b 100644 --- a/Documentation/mm/damon/design.rst +++ b/Documentation/mm/damon/design.rst @@ -299,6 +299,7 @@ filter types. Currently below filter types are supported. - ``memcg``: Same to that for DAMOS filters. - ``pgidle_unset``: Matches if the page for the memory is marked as not access-idle. +- ``pgidle_set``: Matches if the page for the memory is marked as access-idle. If such probes are registered, DAMON executes the probes for each region's sampling memory when it does the access :ref:`sampling @@ -314,7 +315,7 @@ actions are registered, DAMON applies the actions to each region's sampling memory before starting the next sampling interval. Currently only one action, ``set_pgidle`` is supported. The action marks the page for the probing target memory as access-idle. This can be useful to be used together with -``pgidle_unset`` probe filter. +``pgidle_unset`` or ``pgidle_set`` probe filter. This is a sampling based mechanism. Hence, it is lightweight but the output may include some measurement errors. The output should be used with good -- 2.47.3