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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 299B4C43219 for ; Thu, 11 Nov 2021 06:13:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B40D61268 for ; Thu, 11 Nov 2021 06:13:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232881AbhKKGKD (ORCPT ); Thu, 11 Nov 2021 01:10:03 -0500 Received: from out30-131.freemail.mail.aliyun.com ([115.124.30.131]:57187 "EHLO out30-131.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229674AbhKKGJ6 (ORCPT ); Thu, 11 Nov 2021 01:09:58 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R111e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04395;MF=xhao@linux.alibaba.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---0Uw.HkwB_1636610826; Received: from localhost.localdomain(mailfrom:xhao@linux.alibaba.com fp:SMTPD_---0Uw.HkwB_1636610826) by smtp.aliyun-inc.com(127.0.0.1); Thu, 11 Nov 2021 14:07:08 +0800 From: Xin Hao To: sjpark@amazon.de Cc: xhao@linux.alibaba.com, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH V2 2/4] mm/damon: Add 'age' of region tracepoint support Date: Thu, 11 Nov 2021 14:07:02 +0800 Message-Id: X-Mailer: git-send-email 2.31.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In patch "mm/damon: add a tracepoint", it adds a tracepoint for DAMON, it can monitor each region for each aggregation interval, Now the region add a new 'age' variable, some primitive would calculate the priority of each region as a weight, there put it into tracepoint, so we can easily track the change of its value through perf or damon-tools. Signed-off-by: Xin Hao --- include/trace/events/damon.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h index 2f422f4f1fb9..99ffa601e351 100644 --- a/include/trace/events/damon.h +++ b/include/trace/events/damon.h @@ -22,6 +22,7 @@ TRACE_EVENT(damon_aggregated, __field(unsigned long, start) __field(unsigned long, end) __field(unsigned int, nr_accesses) + __field(unsigned int, age) ), TP_fast_assign( @@ -30,11 +31,13 @@ TRACE_EVENT(damon_aggregated, __entry->start = r->ar.start; __entry->end = r->ar.end; __entry->nr_accesses = r->nr_accesses; + __entry->age = r->age; ), - TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u", + TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u %u", __entry->target_id, __entry->nr_regions, - __entry->start, __entry->end, __entry->nr_accesses) + __entry->start, __entry->end, + __entry->nr_accesses, __entry->age) ); #endif /* _TRACE_DAMON_H */ -- 2.31.0