From patchwork Wed Mar 18 11:27:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 11445019 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C25D51392 for ; Wed, 18 Mar 2020 11:36:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8EF0F20771 for ; Wed, 18 Mar 2020 11:36:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="BuZhRpAS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8EF0F20771 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 D1CE86B0010; Wed, 18 Mar 2020 07:36:30 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id CA69A6B0037; Wed, 18 Mar 2020 07:36:30 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B6E236B006C; Wed, 18 Mar 2020 07:36:30 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0034.hostedemail.com [216.40.44.34]) by kanga.kvack.org (Postfix) with ESMTP id 99D396B0010 for ; Wed, 18 Mar 2020 07:36:30 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 49CEF824556B for ; Wed, 18 Mar 2020 11:36:30 +0000 (UTC) X-FDA: 76608280140.10.aunt14_38b51080d983b X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,prvs=339ded45b=sjpark@amazon.com,,RULES_HIT:30054:30056:30064,0,RBL:207.171.184.29:@amazon.com:.lbl8.mailshell.net-66.10.201.10 62.18.0.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:23,LUA_SUMMARY:none X-HE-Tag: aunt14_38b51080d983b X-Filterd-Recvd-Size: 5851 Received: from smtp-fw-9102.amazon.com (smtp-fw-9102.amazon.com [207.171.184.29]) by imf39.hostedemail.com (Postfix) with ESMTP for ; Wed, 18 Mar 2020 11:36:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1584531390; x=1616067390; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=sUHB0hETKzB3vs3nYRu3gCYjEEmk+/WOhPjxLyr5pqo=; b=BuZhRpASXoh57Zzlq+0lS/SoBhoIi5Owj/jvmrwQ+el7x77QAdVv73GA m+TuHJNQKI50CKPAfAX935tP6GQdsWUUURJrHL8hMTJdhZUaTshMg3gDO +3Ez5UgXNQOTe/LH5wqRWF49705r8SYmhy8XKZjHw5kI213QWr2qkEbAJ E=; IronPort-SDR: 0x6ulD+8FNaeOfzT9ajRGhcIi2hHvjRj1xp5k9N1i0mHxN3NqmiaUT4s6ziT1XUuNrI/+q3544 mGWH7++HChPg== X-IronPort-AV: E=Sophos;i="5.70,567,1574121600"; d="scan'208";a="31877214" Received: from sea32-co-svc-lb4-vlan3.sea.corp.amazon.com (HELO email-inbound-relay-1e-c7c08562.us-east-1.amazon.com) ([10.47.23.38]) by smtp-border-fw-out-9102.sea19.amazon.com with ESMTP; 18 Mar 2020 11:36:27 +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-c7c08562.us-east-1.amazon.com (Postfix) with ESMTPS id 3E0BD241327; Wed, 18 Mar 2020 11:36:15 +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 15.0.1236.3; Wed, 18 Mar 2020 11:36:15 +0000 Received: from u886c93fd17d25d.ant.amazon.com (10.43.161.235) by EX13D31EUA001.ant.amazon.com (10.43.165.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 18 Mar 2020 11:36:00 +0000 From: SeongJae Park To: CC: SeongJae Park , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v7 10/15] mm/damon: Add tracepoints Date: Wed, 18 Mar 2020 12:27:17 +0100 Message-ID: <20200318112722.30143-11-sjpark@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200318112722.30143-1-sjpark@amazon.com> References: <20200318112722.30143-1-sjpark@amazon.com> MIME-Version: 1.0 X-Originating-IP: [10.43.161.235] X-ClientProxiedBy: EX13D28UWC001.ant.amazon.com (10.43.162.166) 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 b77e537e2ffe..25c961fabdf4 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)) @@ -608,6 +611,8 @@ 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; } }