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=-10.0 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=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 87576C2BA19 for ; Mon, 6 Apr 2020 13:16:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 498AA22B47 for ; Mon, 6 Apr 2020 13:16:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="uIwQUetn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 498AA22B47 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 DBBB38E0021; Mon, 6 Apr 2020 09:16:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D5F258E000D; Mon, 6 Apr 2020 09:16:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C754D8E0021; Mon, 6 Apr 2020 09:16:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0240.hostedemail.com [216.40.44.240]) by kanga.kvack.org (Postfix) with ESMTP id AF81E8E000D for ; Mon, 6 Apr 2020 09:16:30 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 6B555824377B for ; Mon, 6 Apr 2020 13:16:30 +0000 (UTC) X-FDA: 76677479340.07.shop55_900c91d20b305 X-HE-Tag: shop55_900c91d20b305 X-Filterd-Recvd-Size: 5857 Received: from smtp-fw-4101.amazon.com (smtp-fw-4101.amazon.com [72.21.198.25]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Mon, 6 Apr 2020 13:16:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1586178990; x=1617714990; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=Bqx9bwtW2DodnT7nZ6v8smsi9CDUXdUuFOlLvH4J/6Y=; b=uIwQUetnjOR7OW6gtpSvNRBqYqLOx4xWLeYsxDI57hO2iqpcI3FnfLwD JttawdwBxJ5sdBtCoXaJ4QrlD20Dn8G+1hjD27mRfxMU/+1lEEdWNY1v3 CNoGMh6FPARgzEPWFnJ1mbO+KZd8SItmbxkZFKvSXdJralD4lT2o6FI+f s=; IronPort-SDR: SbuLSVIKH+9gdrgTLK8jxyTWOlc9rxLLbmpT3pADPIk0ipcA1nCt0RAGYEbvbpu99GkcRHtVFY yN6R3XQV53PA== X-IronPort-AV: E=Sophos;i="5.72,351,1580774400"; d="scan'208";a="24415376" Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-1e-a70de69e.us-east-1.amazon.com) ([10.43.8.6]) by smtp-border-fw-out-4101.iad4.amazon.com with ESMTP; 06 Apr 2020 13:16:29 +0000 Received: from EX13MTAUEA002.ant.amazon.com (iad55-ws-svc-p15-lb9-vlan2.iad.amazon.com [10.40.159.162]) by email-inbound-relay-1e-a70de69e.us-east-1.amazon.com (Postfix) with ESMTPS id F1D4BA2616; Mon, 6 Apr 2020 13:16:18 +0000 (UTC) Received: from EX13D31EUA001.ant.amazon.com (10.43.165.15) by EX13MTAUEA002.ant.amazon.com (10.43.61.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 6 Apr 2020 13:16:18 +0000 Received: from u886c93fd17d25d.ant.amazon.com (10.43.160.65) by EX13D31EUA001.ant.amazon.com (10.43.165.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 6 Apr 2020 13:16:04 +0000 From: SeongJae Park To: CC: SeongJae Park , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v8 10/15] mm/damon: Add tracepoints Date: Mon, 6 Apr 2020 15:09:33 +0200 Message-ID: <20200406130938.14066-11-sjpark@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200406130938.14066-1-sjpark@amazon.com> References: <20200406130938.14066-1-sjpark@amazon.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.43.160.65] X-ClientProxiedBy: EX13D11UWB003.ant.amazon.com (10.43.161.206) To EX13D31EUA001.ant.amazon.com (10.43.165.15) 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 will be easily integrated with any tracepoints supporting tools such as perf. Signed-off-by: SeongJae Park --- include/trace/events/damon.h | 43 ++++++++++++++++++++++++++++++++++++ mm/damon.c | 5 +++++ 2 files changed, 48 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..bec3501f2b05 --- /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 + +TRACE_EVENT(damon_aggregated, + + TP_PROTO(unsigned long pid, unsigned int nr_regions, + unsigned long vm_start, unsigned long vm_end, + unsigned int nr_accesses), + + TP_ARGS(pid, nr_regions, vm_start, vm_end, nr_accesses), + + TP_STRUCT__entry( + __field(unsigned long, pid) + __field(unsigned int, nr_regions) + __field(unsigned long, vm_start) + __field(unsigned long, vm_end) + __field(unsigned int, nr_accesses) + ), + + TP_fast_assign( + __entry->pid = pid; + __entry->nr_regions = nr_regions; + __entry->vm_start = vm_start; + __entry->vm_end = vm_end; + __entry->nr_accesses = nr_accesses; + ), + + TP_printk("pid=%lu nr_regions=%u %lu-%lu: %u", __entry->pid, + __entry->nr_regions, __entry->vm_start, + __entry->vm_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 1712ce8a88a5..eb0dca2c899c 100644 --- a/mm/damon.c +++ b/mm/damon.c @@ -9,6 +9,8 @@ #define pr_fmt(fmt) "damon: " fmt +#define CREATE_TRACE_POINTS + #include #include #include @@ -20,6 +22,7 @@ #include #include #include +#include #define damon_get_task_struct(t) \ (get_pid_task(find_vpid(t->pid), PIDTYPE_PID)) @@ -654,6 +657,8 @@ static void kdamond_reset_aggregated(struct damon_ctx *c) damon_write_rbuf(c, &r->vm_end, sizeof(r->vm_end)); damon_write_rbuf(c, &r->nr_accesses, sizeof(r->nr_accesses)); + trace_damon_aggregated(t->pid, nr, + r->vm_start, r->vm_end, r->nr_accesses); r->nr_accesses = 0; } } -- 2.17.1