From patchwork Thu Dec 30 10:07:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 12701366 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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90226C433F5 for ; Thu, 30 Dec 2021 10:14:56 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 72E5F6B00A4; Thu, 30 Dec 2021 05:14:50 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 3C4206B00A1; Thu, 30 Dec 2021 05:14:50 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 23E0A6B00A3; Thu, 30 Dec 2021 05:14:50 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0006.hostedemail.com [216.40.44.6]) by kanga.kvack.org (Postfix) with ESMTP id 00E206B00A0 for ; Thu, 30 Dec 2021 05:14:49 -0500 (EST) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id B4C58180C44A8 for ; Thu, 30 Dec 2021 10:14:49 +0000 (UTC) X-FDA: 78974051898.12.7994ECF Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf23.hostedemail.com (Postfix) with ESMTP id 5BD0D140007 for ; Thu, 30 Dec 2021 10:14:38 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 3F0E3B81B0A; Thu, 30 Dec 2021 10:14:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5A54C36AEE; Thu, 30 Dec 2021 10:14:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1640859287; bh=t8yQA3j+9q3YreOJjkrRYJ9L4dQUxTSnsaSnS7maVzg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=etyu8/avKta9I1jDeVvbou0yx5DaBVmneLYnxHDlKnd2rMZ0gjr4RhO57/Ts+KPWb LJUDPskthAWQZp+xY8y08wYvkM+c0eMKf/19jtlIem62YiPDsPfftxmrPNfX9XaHjh pjhH/nX1jgxqkwbnl8AJZobTIETveVvms7+z+DAwFp+LF77+HRGdRk4CO0EKiz5KfY QRHSGQuRjXgdqwmUXjnUplX5UgukkZ5kgFLwVi6v9iYgMulF1av/6+Wldjbn3/PCJ/ N4ggMbGq2j8EkxUM0AFdRn1FVjwggZu3Ek+fRBnSYy3yrw40+r0fTjrrG9NaQqDx4F mlDX7FHKYouTw== From: SeongJae Park To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, SeongJae Park Subject: [PATCH 2/4] Docs/admin-guide/mm/damon/usage: Update for changed initail_regions file input Date: Thu, 30 Dec 2021 10:07:21 +0000 Message-Id: <20211230100723.2238-3-sj@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211230100723.2238-1-sj@kernel.org> References: <20211230100723.2238-1-sj@kernel.org> Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="etyu8/av"; spf=pass (imf23.hostedemail.com: domain of sj@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=sj@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 5BD0D140007 X-Stat-Signature: ynjczsj7hnxf4yyuraop9asa3aguz5ab X-HE-Tag: 1640859278-605543 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: A previous commit made init_regions debugfs file to use target index instead of target id for specifying the target of the init regions. This commit updates the usage document to reflect the change. Signed-off-by: SeongJae Park --- Documentation/admin-guide/mm/damon/usage.rst | 24 ++++++++++++-------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst index 59b84904a854..1e06435b8ff6 100644 --- a/Documentation/admin-guide/mm/damon/usage.rst +++ b/Documentation/admin-guide/mm/damon/usage.rst @@ -108,19 +108,23 @@ In such cases, users can explicitly set the initial monitoring target regions as they want, by writing proper values to the ``init_regions`` file. Each line of the input should represent one region in below form.:: - + -The ``target id`` should already in ``target_ids`` file, and the regions should -be passed in address order. For example, below commands will set a couple of -address ranges, ``1-100`` and ``100-200`` as the initial monitoring target -region of process 42, and another couple of address ranges, ``20-40`` and -``50-100`` as that of process 4242.:: +The ``target idx`` should be the index of the target in ``target_ids`` file, +starting from ``0``, and the regions should be passed in address order. For +example, below commands will set a couple of address ranges, ``1-100`` and +``100-200`` as the initial monitoring target region of pid 42, which is the +first one (index ``0``) in ``target_ids``, and another couple of address +ranges, ``20-40`` and ``50-100`` as that of pid 4242, which is the second one +(index ``1``) in ``target_ids``.:: # cd /damon - # echo "42 1 100 - 42 100 200 - 4242 20 40 - 4242 50 100" > init_regions + # cat target_ids + 42 4242 + # echo "0 1 100 + 0 100 200 + 1 20 40 + 1 50 100" > init_regions Note that this sets the initial monitoring target regions only. In case of virtual memory monitoring, DAMON will automatically updates the boundary of the