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 X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 6FD50C433E1 for ; Mon, 6 Jul 2020 11:56:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 2A13920720 for ; Mon, 6 Jul 2020 11:56:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="kknN7P0S" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2A13920720 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=amazon.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C644D6B0022; Mon, 6 Jul 2020 07:56:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BECEB6B0024; Mon, 6 Jul 2020 07:56:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AE57D6B0022; Mon, 6 Jul 2020 07:56:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0204.hostedemail.com [216.40.44.204]) by kanga.kvack.org (Postfix) with ESMTP id 9837D6B0022 for ; Mon, 6 Jul 2020 07:56:35 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 5C1C8181AC9B6 for ; Mon, 6 Jul 2020 11:56:35 +0000 (UTC) X-FDA: 77007498750.02.paper52_5f1018726eab Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin02.hostedemail.com (Postfix) with ESMTP id 1F8C750001241C80 for ; Mon, 6 Jul 2020 11:56:34 +0000 (UTC) X-HE-Tag: paper52_5f1018726eab X-Filterd-Recvd-Size: 5973 Received: from smtp-fw-9102.amazon.com (smtp-fw-9102.amazon.com [207.171.184.29]) by imf46.hostedemail.com (Postfix) with ESMTP for ; Mon, 6 Jul 2020 11:56:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1594036595; x=1625572595; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=GUogOMG40Gv5SR6Dd171JBML0s+hTwFfn6FBmFKxfsY=; b=kknN7P0Sz6zS7BXZI8O98JbZ8nl3CN6DaQSw4Xw8GAAAX3RqDuIYSjiu qSJs2p0Gr7A2WGlx9u80cc64FRkHivySgyNqJXsJcrXnpZcxQEWkHjEOM 1GpcR/JSBTNfYtienTVqA9F3ZCtcHIXRwmR2BxYS95SGLjymKkoQzQPW1 4=; IronPort-SDR: RO6fbR9I1GKclWRAUE+MgsCrsf6S/Ioku6VWzTZMK/X2q3bI7nJsNz1Cpgi580+xn4cVYCfDn5 k61FoJUJXm6g== X-IronPort-AV: E=Sophos;i="5.75,318,1589241600"; d="scan'208";a="57624599" Received: from sea32-co-svc-lb4-vlan3.sea.corp.amazon.com (HELO email-inbound-relay-2b-55156cd4.us-west-2.amazon.com) ([10.47.23.38]) by smtp-border-fw-out-9102.sea19.amazon.com with ESMTP; 06 Jul 2020 11:56:33 +0000 Received: from EX13MTAUEA002.ant.amazon.com (pdx4-ws-svc-p6-lb7-vlan2.pdx.amazon.com [10.170.41.162]) by email-inbound-relay-2b-55156cd4.us-west-2.amazon.com (Postfix) with ESMTPS id C37B7A1B2F; Mon, 6 Jul 2020 11:56:30 +0000 (UTC) Received: from EX13D31EUA004.ant.amazon.com (10.43.165.161) by EX13MTAUEA002.ant.amazon.com (10.43.61.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 6 Jul 2020 11:56:30 +0000 Received: from u886c93fd17d25d.ant.amazon.com (10.43.160.100) by EX13D31EUA004.ant.amazon.com (10.43.165.161) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 6 Jul 2020 11:56:14 +0000 From: SeongJae Park To: CC: SeongJae Park , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v17 08/15] mm/damon: Add a tracepoint Date: Mon, 6 Jul 2020 13:53:15 +0200 Message-ID: <20200706115322.29598-9-sjpark@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200706115322.29598-1-sjpark@amazon.com> References: <20200706115322.29598-1-sjpark@amazon.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.43.160.100] X-ClientProxiedBy: EX13D21UWA003.ant.amazon.com (10.43.160.184) To EX13D31EUA004.ant.amazon.com (10.43.165.161) X-Rspamd-Queue-Id: 1F8C750001241C80 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 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 --- include/trace/events/damon.h | 43 ++++++++++++++++++++++++++++++++++++ mm/damon.c | 4 ++++ 2 files changed, 47 insertions(+) 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..40b249a28b30 --- /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_task *t, struct damon_region *r, + unsigned int nr_regions), + + TP_ARGS(t, r, nr_regions), + + TP_STRUCT__entry( + __field(int, pid) + __field(unsigned int, nr_regions) + __field(unsigned long, start) + __field(unsigned long, end) + __field(unsigned int, nr_accesses) + ), + + TP_fast_assign( + __entry->pid = t->pid; + __entry->nr_regions = nr_regions; + __entry->start = r->ar.start; + __entry->end = r->ar.end; + __entry->nr_accesses = r->nr_accesses; + ), + + TP_printk("pid=%d nr_regions=%u %lu-%lu: %u", __entry->pid, + __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.c b/mm/damon.c index be8be4626400..ce351592fe86 100644 --- a/mm/damon.c +++ b/mm/damon.c @@ -19,6 +19,8 @@ #define pr_fmt(fmt) "damon: " fmt +#define CREATE_TRACE_POINTS + #include #include #include @@ -29,6 +31,7 @@ #include #include #include +#include /* Minimal region size. Every damon_region is aligned by this. */ #define MIN_REGION PAGE_SIZE @@ -791,6 +794,7 @@ static void kdamond_reset_aggregated(struct damon_ctx *c) damon_write_rbuf(c, &r->ar.end, sizeof(r->ar.end)); damon_write_rbuf(c, &r->nr_accesses, sizeof(r->nr_accesses)); + trace_damon_aggregated(t, r, nr); r->nr_accesses = 0; } } -- 2.17.1