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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34EB0E7C4F5 for ; Wed, 4 Oct 2023 20:18:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244027AbjJDUSd (ORCPT ); Wed, 4 Oct 2023 16:18:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244024AbjJDUS3 (ORCPT ); Wed, 4 Oct 2023 16:18:29 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6004CCE for ; Wed, 4 Oct 2023 13:18:22 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C4B7AC433C7; Wed, 4 Oct 2023 20:18:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1696450702; bh=1/j3ZbCXr37IE9rXQohzZYE8hO44bv6n734bZcXlhrk=; h=Date:To:From:Subject:From; b=WA9xy7KbykhrwXM0WeED1Gwn8sz+InnvMV1cNlCvn2Qk+zsepl90eSTt4AGioMo11 4UolL0NHL8FQ5lXbZmDuwKl6m6S8tsWDdkCkWob7lMEQnhz1kN3jlC9k1epBqRCXCO zW31v/eedWykwIbc5MG5iD/QrB43wySuyb9PLlA8= Date: Wed, 04 Oct 2023 13:18:20 -0700 To: mm-commits@vger.kernel.org, rostedt@goodmis.org, corbet@lwn.net, sj@kernel.org, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] docs-admin-guide-mm-damon-usage-explain-the-format-of-damon_aggregate-tracepoint.patch removed from -mm tree Message-Id: <20231004201821.C4B7AC433C7@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: Docs/admin-guide/mm/damon/usage: explain the format of damon_aggregate tracepoint has been removed from the -mm tree. Its filename was docs-admin-guide-mm-damon-usage-explain-the-format-of-damon_aggregate-tracepoint.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: Docs/admin-guide/mm/damon/usage: explain the format of damon_aggregate tracepoint Date: Thu, 7 Sep 2023 02:29:23 +0000 The example of the section for damon_aggregated tracepoint is not explaining how the output looks like, and how it can be interpreted. Add it. Link: https://lkml.kernel.org/r/20230907022929.91361-6-sj@kernel.org Signed-off-by: SeongJae Park Cc: Jonathan Corbet Cc: Steven Rostedt (Google) Signed-off-by: Andrew Morton --- Documentation/admin-guide/mm/damon/usage.rst | 14 ++++++++++++++ Documentation/mm/damon/design.rst | 4 ++++ 2 files changed, 18 insertions(+) --- a/Documentation/admin-guide/mm/damon/usage.rst~docs-admin-guide-mm-damon-usage-explain-the-format-of-damon_aggregate-tracepoint +++ a/Documentation/admin-guide/mm/damon/usage.rst @@ -513,6 +513,20 @@ results using tracepoint supporting tool # kill 9 $(pidof perf) # echo off > monitor_on # perf script + kdamond.0 46568 [027] 79357.842179: damon:damon_aggregated: target_id=0 nr_regions=11 122509119488-135708762112: 0 864 + [...] + +Each line of the perf script output represents each monitoring region. The +first five fields are as usual other tracepoint outputs. The sixth field +(``target_id=X``) shows the ide of the monitoring target of the region. The +seventh field (``nr_regions=X``) shows the total number of monitoring regions +for the target. The eighth field (``X-Y:``) shows the start (``X``) and end +(``Y``) addresses of the region in bytes. The ninth field (``X``) shows the +``nr_accesses`` of the region (refer to +:ref:`design ` for more details of the +counter). Finally the tenth field (``X``) shows the ``age`` of the region +(refer to :ref:`design ` for more details of the +counter). .. _debugfs_interface: --- a/Documentation/mm/damon/design.rst~docs-admin-guide-mm-damon-usage-explain-the-format-of-damon_aggregate-tracepoint +++ a/Documentation/mm/damon/design.rst @@ -154,6 +154,8 @@ The monitoring overhead of this mechanis size of the target workload grows. +.. _damon_design_region_based_sampling: + Region Based Sampling ~~~~~~~~~~~~~~~~~~~~~ @@ -191,6 +193,8 @@ In this way, DAMON provides its best-eff keeping the bounds users set for their trade-off. +.. _damon_design_age_tracking: + Age Tracking ~~~~~~~~~~~~ _ Patches currently in -mm which might be from sj@kernel.org are