From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756715AbcJSB0S (ORCPT ); Tue, 18 Oct 2016 21:26:18 -0400 Received: from mga14.intel.com ([192.55.52.115]:60606 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752313AbcJSB0M (ORCPT ); Tue, 18 Oct 2016 21:26:12 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,364,1473145200"; d="scan'208";a="21091019" From: Jin Yao To: acme@kernel.org, jolsa@kernel.org Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com, kan.liang@intel.com, Jin Yao Subject: [PATCH 0/6] Show branch flags/cycles in perf report --branch-history callgraph view Date: Wed, 19 Oct 2016 17:25:47 +0800 Message-Id: <1476869153-15424-1-git-send-email-yao.jin@linux.intel.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org perf record -g -b ... perf report --branch-history Currently it only shows the branches from the LBR in the callgraph view. It would be useful to annotate branch predictions and TSX aborts and also timed LBR cycles also in the callgraph view. This would allow a quick overview where branch predictions are and how costly basic blocks are. For example: Overhead Source:Line Symbol Shared Object Predicted Abort Cycles ........ ............................................ ......... .............. ......... ..... ...... 38.25% div.c:45 [.] main div 97.6% 0.0% 3 | ---main div.c:42 (cycles:2) compute_flag div.c:28 (cycles:2) compute_flag div.c:27 (cycles:1) rand rand.c:28 (cycles:1) rand rand.c:28 (cycles:1) __random random.c:298 (cycles:1) __random random.c:297 (cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (cycles:1) __random random.c:295 (cycles:9) | |--36.73%--__random_r random_r.c:392 (cycles:9) | __random_r random_r.c:357 (cycles:1) | __random random.c:293 (cycles:1) | __random random.c:293 (cycles:1) | __random random.c:291 (cycles:1) | __random random.c:291 (cycles:1) | __random random.c:291 (cycles:1) | __random random.c:288 (cycles:1) | rand rand.c:27 (cycles:1) | rand rand.c:26 (cycles:1) | rand@plt +4194304 (cycles:1) | rand@plt +4194304 (cycles:1) | compute_flag div.c:25 (cycles:1) | compute_flag div.c:22 (cycles:1) | main div.c:40 (cycles:1) | main div.c:40 (cycles:16) | main div.c:39 (cycles:16) | | | |--29.93%--main div.c:39 (predicted:50.6%, cycles:1) | | main div.c:44 (predicted:50.6%, cycles:1) | | | | | --22.69%--main div.c:42 (cycles:2) Predicted is hide in callchain entry if the branch is 100% predicted. Abort is hide in callchain entry if the branch is 0 aborted. Now stdio and browser modes are both supported. Jin Yao (6): perf report: Add branch flag to callchain cursor node perf report: Caculate and return the branch counting in callchain perf report: Create a symbol_conf flag for showing branch flag counting perf report: Show branch info in callchain entry with stdio mode perf report: Show branch info in callchain entry with browser mode perf report: Display keys Predicted/Abort/Cycles in --branch-history tools/perf/Documentation/perf-report.txt | 8 ++ tools/perf/builtin-report.c | 9 +- tools/perf/ui/browsers/hists.c | 15 ++- tools/perf/ui/stdio/hist.c | 30 +++++- tools/perf/util/callchain.c | 176 ++++++++++++++++++++++++++++++- tools/perf/util/callchain.h | 16 ++- tools/perf/util/hist.c | 3 + tools/perf/util/hist.h | 3 + tools/perf/util/machine.c | 56 +++++++--- tools/perf/util/sort.c | 117 +++++++++++++++++++- tools/perf/util/sort.h | 3 + tools/perf/util/symbol.h | 1 + 12 files changed, 411 insertions(+), 26 deletions(-) -- 2.7.4