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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 B8188C43464 for ; Mon, 21 Sep 2020 03:34:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88AA321789 for ; Mon, 21 Sep 2020 03:34:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726444AbgIUDeo (ORCPT ); Sun, 20 Sep 2020 23:34:44 -0400 Received: from mga05.intel.com ([192.55.52.43]:56863 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726422AbgIUDek (ORCPT ); Sun, 20 Sep 2020 23:34:40 -0400 IronPort-SDR: uv73AKC99XnkNvxA7ozZUwG8CT02Sg20KEQQuhxEN3GfEauOh1ca348YOGbKBeYV3GcvGZdRb6 87XJqmVdEWrA== X-IronPort-AV: E=McAfee;i="6000,8403,9750"; a="245136868" X-IronPort-AV: E=Sophos;i="5.77,285,1596524400"; d="scan'208";a="245136868" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Sep 2020 20:34:40 -0700 IronPort-SDR: bt7uumvbzw6sCa/Hzr4O4WX7L70Kxck5w7MjraEVu5VFNPMpi1OcV41WYVkNsaIEKPA5UknEr6 h+U3x+FWKI4w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,285,1596524400"; d="scan'208";a="411943790" Received: from kbl-ppc.sh.intel.com ([10.239.159.55]) by fmsmga001.fm.intel.com with ESMTP; 20 Sep 2020 20:34:37 -0700 From: Jin Yao To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, yao.jin@intel.com, Jin Yao Subject: [PATCH v7 5/7] perf util: Calculate the sum of total streams hits Date: Mon, 21 Sep 2020 11:34:00 +0800 Message-Id: <20200921033402.25129-6-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200921033402.25129-1-yao.jin@linux.intel.com> References: <20200921033402.25129-1-yao.jin@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We have used callchain_node->hit to measure the hot level of one stream. This patch calculates the sum of hits of total streams. Thus in next patch, we can use following formula to report hot percent for one stream. hot percent = callchain_node->hit / sum of total hits Signed-off-by: Jin Yao --- v7: - No change v6: - Rebase to perf/core v5: - Rebase to perf/core v4: - No functional change. v2: - Combine the variable decl line with its initial assignment in total_callchain_hits(). tools/perf/util/callchain.c | 32 ++++++++++++++++++++++++++++++++ tools/perf/util/callchain.h | 3 +++ tools/perf/util/stream.c | 2 ++ tools/perf/util/stream.h | 1 + 4 files changed, 38 insertions(+) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index d356e73c5622..4f824bfcc072 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -1667,3 +1667,35 @@ bool callchain_cnode_matched(struct callchain_node *base_cnode, return match; } + +static u64 count_callchain_hits(struct hist_entry *he) +{ + struct rb_root *root = &he->sorted_chain; + struct rb_node *rb_node = rb_first(root); + struct callchain_node *node; + u64 chain_hits = 0; + + while (rb_node) { + node = rb_entry(rb_node, struct callchain_node, rb_node); + chain_hits += node->hit; + rb_node = rb_next(rb_node); + } + + return chain_hits; +} + +u64 callchain_total_hits(struct hists *hists) +{ + struct rb_node *next = rb_first_cached(&hists->entries); + u64 chain_hits = 0; + + while (next) { + struct hist_entry *he = rb_entry(next, struct hist_entry, + rb_node); + + chain_hits += count_callchain_hits(he); + next = rb_next(&he->rb_node); + } + + return chain_hits; +} diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index ad27fc8c7948..ac5bea9c1eb7 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -13,6 +13,7 @@ struct ip_callchain; struct map; struct perf_sample; struct thread; +struct hists; #define HELP_PAD "\t\t\t\t" @@ -302,4 +303,6 @@ void callchain_param_setup(u64 sample_type); bool callchain_cnode_matched(struct callchain_node *base_cnode, struct callchain_node *pair_cnode); +u64 callchain_total_hits(struct hists *hists); + #endif /* __PERF_CALLCHAIN_H */ diff --git a/tools/perf/util/stream.c b/tools/perf/util/stream.c index 0d6a7452320a..47c5956b3378 100644 --- a/tools/perf/util/stream.c +++ b/tools/perf/util/stream.c @@ -121,6 +121,8 @@ static void init_hot_callchain(struct hists *hists, struct evsel_streams *es) update_hot_callchain(he, es); next = rb_next(&he->rb_node); } + + es->streams_hits = callchain_total_hits(hists); } static int evlist__init_callchain_streams(struct evlist *evlist, diff --git a/tools/perf/util/stream.h b/tools/perf/util/stream.h index cb131f41f5b1..a61072eda64d 100644 --- a/tools/perf/util/stream.h +++ b/tools/perf/util/stream.h @@ -14,6 +14,7 @@ struct evsel_streams { int nr_streams_max; int nr_streams; int evsel_idx; + u64 streams_hits; }; struct evlist_streams { -- 2.17.1