From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755894AbaKPMh0 (ORCPT ); Sun, 16 Nov 2014 07:37:26 -0500 Received: from terminus.zytor.com ([198.137.202.10]:35690 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755883AbaKPMhT (ORCPT ); Sun, 16 Nov 2014 07:37:19 -0500 Date: Sun, 16 Nov 2014 04:36:46 -0800 From: tip-bot for Stephane Eranian Message-ID: Cc: acme@kernel.org, hpa@zytor.com, mingo@kernel.org, tglx@linutronix.de, torvalds@linux-foundation.org, khandual@linux.vnet.ibm.com, adrian.hunter@intel.com, eranian@google.com, peterz@infradead.org, standby24x7@gmail.com, linux-kernel@vger.kernel.org Reply-To: acme@kernel.org, mingo@kernel.org, hpa@zytor.com, eranian@google.com, peterz@infradead.org, tglx@linutronix.de, khandual@linux.vnet.ibm.com, adrian.hunter@intel.com, torvalds@linux-foundation.org, standby24x7@gmail.com, linux-kernel@vger.kernel.org In-Reply-To: <1411559322-16548-6-git-send-email-eranian@google.com> References: <1411559322-16548-6-git-send-email-eranian@google.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf record: Add new -I option to sample interrupted machine state Git-Commit-ID: 4b6c51773d86883a2e80cffadbe4f178ac1babd8 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 4b6c51773d86883a2e80cffadbe4f178ac1babd8 Gitweb: http://git.kernel.org/tip/4b6c51773d86883a2e80cffadbe4f178ac1babd8 Author: Stephane Eranian AuthorDate: Wed, 24 Sep 2014 13:48:41 +0200 Committer: Ingo Molnar CommitDate: Sun, 16 Nov 2014 11:42:02 +0100 perf record: Add new -I option to sample interrupted machine state Add -I/--intr-regs option to capture machine state registers at interrupt. Add the corresponding man page description Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra (Intel) Link: http://lkml.kernel.org/r/1411559322-16548-6-git-send-email-eranian@google.com Cc: cebbert.lkml@gmail.com Cc: Adrian Hunter Cc: Anshuman Khandual Cc: Arnaldo Carvalho de Melo Cc: Linus Torvalds Cc: Masanari Iida Signed-off-by: Ingo Molnar --- tools/perf/Documentation/perf-record.txt | 6 ++++++ tools/perf/builtin-record.c | 2 ++ 2 files changed, 8 insertions(+) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 398f8d5..af9a54e 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -214,6 +214,12 @@ if combined with -a or -C options. After starting the program, wait msecs before measuring. This is useful to filter out the startup phase of the program, which is often very different. +-I:: +--intr-regs:: +Capture machine state (registers) at interrupt, i.e., on counter overflows for +each sample. List of captured registers depends on the architecture. This option +is off by default. + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 582c4da..8648c6d 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -811,6 +811,8 @@ struct option __record_options[] = { "sample transaction flags (special events only)"), OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread, "use per-thread mmaps"), + OPT_BOOLEAN('I', "intr-regs", &record.opts.sample_intr_regs, + "Sample machine registers on interrupt"), OPT_END() };