From patchwork Thu May 20 07:56:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 12269331 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E43EDC433B4 for ; Thu, 20 May 2021 07:57:01 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8ED426101D for ; Thu, 20 May 2021 07:57:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8ED426101D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A23286B0073; Thu, 20 May 2021 03:57:00 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 98A396B0074; Thu, 20 May 2021 03:57:00 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7B39B6B0075; Thu, 20 May 2021 03:57:00 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0246.hostedemail.com [216.40.44.246]) by kanga.kvack.org (Postfix) with ESMTP id 3D1B76B0073 for ; Thu, 20 May 2021 03:57:00 -0400 (EDT) Received: from smtpin33.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id DB1A76C2C for ; Thu, 20 May 2021 07:56:59 +0000 (UTC) X-FDA: 78160853358.33.1D71E3A Received: from mail-qk1-f175.google.com (mail-qk1-f175.google.com [209.85.222.175]) by imf05.hostedemail.com (Postfix) with ESMTP id AFC8CE00013F for ; Thu, 20 May 2021 07:56:57 +0000 (UTC) Received: by mail-qk1-f175.google.com with SMTP id 124so2986976qkh.10 for ; Thu, 20 May 2021 00:56:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=CvzI94r9LiC7RH+dtcaRZqda/Y720VadPnKc/47pvNM=; b=Bhg1YtV/hP0o+cBIzin0UJ4XNbvDPsgiPTqj6LYjtc4hWNO3pO41z1GYqyjTDFyfDy TXmfRhkiglA4UcyGJMBa0fBkfsEzH1vzUCNpyaigGoJcuRIMInA5ce0EXoO8P7lI2IPm HrZ0im4nhQW1haTmeXuBhupPsHiu2c+Tv2/DX8LmexRmKlqU8CnT7FRS8OWeyDrMPM3Z UnYV163cQVlAiY3H1OW5qwNcrHxuBocyuutu9beubB5bAvXycuT/QQG+UmDkPMaKJv5E 2IB734K2gCNcTa1rpFncK8Qq2K/ZYR85FNXH2NCehY/fXLS/KdqsDp2qTfeUunU7pBM9 u/qQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=CvzI94r9LiC7RH+dtcaRZqda/Y720VadPnKc/47pvNM=; b=dPAcRoDRTQ6nJUk65QcDVAtdQ/B5FFIU5EFwHp0cLOzMFozvIivSTHGsLUedLDMPH3 RdLSxynQkmI+9gBTiQMd+aJkf49fmlxYMdadD7Kuod3v+8Ok6gjkLfNiGDX03rrl9GCu Ic9+YY2fiix+za7aJdA+JLwV7o66YBwVchr4kqup4kVSrq/o9czAUsmnXl2SE81h9S6T TaHW2ss3id8VvJfbE49SYANyr4pciJ6idcK5V0IO1Vzz0zs/c/JA//HStfbIZt/8dN3u oklrm3ZJTap1nV6RJTtUiOpkJCEmE94juAjYZ9D+hF/p9VleqkTLCcoPiHD+DVA8pI2i 1+gA== X-Gm-Message-State: AOAM532zoHYd0GayDkqpnGPQU5V/XaRDcbQRrwoRJc13QNj7ErVPb/nH ivVj4prCdus0zGbFJtbOXEs= X-Google-Smtp-Source: ABdhPJxOdaEP0dtzhXEhIXz86XbsK3RVnunca+ppIbbsXU5xw9H05LVMgFm8rLaOBYFO548CQPl3CQ== X-Received: by 2002:a05:620a:cf6:: with SMTP id c22mr3564689qkj.123.1621497419049; Thu, 20 May 2021 00:56:59 -0700 (PDT) Received: from localhost.localdomain (ec2-35-169-212-159.compute-1.amazonaws.com. [35.169.212.159]) by smtp.gmail.com with ESMTPSA id g9sm1478254qka.38.2021.05.20.00.56.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 May 2021 00:56:58 -0700 (PDT) From: SeongJae Park To: akpm@linux-foundation.org Cc: SeongJae Park , Jonathan.Cameron@Huawei.com, acme@kernel.org, alexander.shishkin@linux.intel.com, amit@kernel.org, benh@kernel.crashing.org, brendanhiggins@google.com, corbet@lwn.net, david@redhat.com, dwmw@amazon.com, elver@google.com, fan.du@intel.com, foersleo@amazon.de, greg@kroah.com, gthelen@google.com, guoju.fgj@alibaba-inc.com, mgorman@suse.de, minchan@kernel.org, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, riel@surriel.com, rientjes@google.com, rostedt@goodmis.org, rppt@kernel.org, shakeelb@google.com, shuah@kernel.org, sj38.park@gmail.com, snu@amazon.de, vbabka@suse.cz, vdavydov.dev@gmail.com, zgf574564920@gmail.com, linux-damon@amazon.com, linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v29 06/13] mm/damon: Add a tracepoint Date: Thu, 20 May 2021 07:56:22 +0000 Message-Id: <20210520075629.4332-7-sj38.park@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210520075629.4332-1-sj38.park@gmail.com> References: <20210520075629.4332-1-sj38.park@gmail.com> X-Rspamd-Queue-Id: AFC8CE00013F Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=gmail.com header.s=20161025 header.b="Bhg1YtV/"; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf05.hostedemail.com: domain of sj38park@gmail.com designates 209.85.222.175 as permitted sender) smtp.mailfrom=sj38park@gmail.com X-Rspamd-Server: rspam03 X-Stat-Signature: j84ogwur3hso3g377t8hasu41t15p8eg X-HE-Tag: 1621497417-974083 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: From: SeongJae Park This commit adds a tracepoint for DAMON. It traces the monitoring results of each region for each aggregation interval. Using this, DAMON can easily integrated with tracepoints supporting tools such as perf. Signed-off-by: SeongJae Park Reviewed-by: Leonard Foerster Reviewed-by: Steven Rostedt (VMware) --- include/trace/events/damon.h | 43 ++++++++++++++++++++++++++++++++++++ mm/damon/core.c | 7 +++++- 2 files changed, 49 insertions(+), 1 deletion(-) create mode 100644 include/trace/events/damon.h diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h new file mode 100644 index 000000000000..2f422f4f1fb9 --- /dev/null +++ b/include/trace/events/damon.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM damon + +#if !defined(_TRACE_DAMON_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_DAMON_H + +#include +#include +#include + +TRACE_EVENT(damon_aggregated, + + TP_PROTO(struct damon_target *t, struct damon_region *r, + unsigned int nr_regions), + + TP_ARGS(t, r, nr_regions), + + TP_STRUCT__entry( + __field(unsigned long, target_id) + __field(unsigned int, nr_regions) + __field(unsigned long, start) + __field(unsigned long, end) + __field(unsigned int, nr_accesses) + ), + + TP_fast_assign( + __entry->target_id = t->id; + __entry->nr_regions = nr_regions; + __entry->start = r->ar.start; + __entry->end = r->ar.end; + __entry->nr_accesses = r->nr_accesses; + ), + + TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u", + __entry->target_id, __entry->nr_regions, + __entry->start, __entry->end, __entry->nr_accesses) +); + +#endif /* _TRACE_DAMON_H */ + +/* This part must be outside protection */ +#include diff --git a/mm/damon/core.c b/mm/damon/core.c index b36b6bdd94e2..912112662d0c 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -13,6 +13,9 @@ #include #include +#define CREATE_TRACE_POINTS +#include + /* Get a random number in [l, r) */ #define damon_rand(l, r) (l + prandom_u32_max(r - l)) @@ -388,8 +391,10 @@ static void kdamond_reset_aggregated(struct damon_ctx *c) damon_for_each_target(t, c) { struct damon_region *r; - damon_for_each_region(r, t) + damon_for_each_region(r, t) { + trace_damon_aggregated(t, r, damon_nr_regions(t)); r->nr_accesses = 0; + } } }