From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936456AbcKXBLd (ORCPT ); Wed, 23 Nov 2016 20:11:33 -0500 Received: from LGEAMRELO11.lge.com ([156.147.23.51]:48174 "EHLO lgeamrelo11.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936195AbcKXBLT (ORCPT ); Wed, 23 Nov 2016 20:11:19 -0500 X-Original-SENDERIP: 156.147.1.121 X-Original-MAILFROM: namhyung@kernel.org X-Original-SENDERIP: 10.177.227.17 X-Original-MAILFROM: namhyung@kernel.org From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Ingo Molnar , Peter Zijlstra , Jiri Olsa , LKML , David Ahern , Stephane Eranian , Andi Kleen Subject: [PATCH 3/3] perf sched timehist: Enlarge max stack depth by 2 Date: Thu, 24 Nov 2016 10:11:14 +0900 Message-Id: <20161124011114.7102-3-namhyung@kernel.org> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20161124011114.7102-1-namhyung@kernel.org> References: <20161124011114.7102-1-namhyung@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When it records callchains, they will always have 2 scheduler functions (__schedule + schedule or __schedule + preempt_schedule) and get ignored. So it should collect 2 more functions to show the expected number of callchains to user. Cc: David Ahern Signed-off-by: Namhyung Kim --- tools/perf/builtin-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 06be809a02ab..a49a032f5b15 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -1960,7 +1960,7 @@ static bool is_idle_sample(struct perf_sched *sched, return false; if (thread__resolve_callchain(thread, cursor, evsel, sample, - NULL, NULL, sched->max_stack) != 0) { + NULL, NULL, sched->max_stack + 2) != 0) { if (verbose) error("Failed to resolve callchain. Skipping\n"); -- 2.10.0