Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752469Ab2EUHj2 (ORCPT ); Mon, 21 May 2012 03:39:28 -0400 Received: from terminus.zytor.com ([198.137.202.10]:37686 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751617Ab2EUHj0 (ORCPT ); Mon, 21 May 2012 03:39:26 -0400 Date: Mon, 21 May 2012 00:39:09 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, paulus@samba.org, mingo@redhat.com, hpa@zytor.com, mingo@kernel.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@gmail.com, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, mingo@redhat.com, paulus@samba.org, linux-kernel@vger.kernel.org, acme@redhat.com, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, tglx@linutronix.de, namhyung@gmail.com In-Reply-To: <1337161549-9870-3-git-send-email-namhyung.kim@lge.com> References: <1337161549-9870-3-git-send-email-namhyung.kim@lge.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf target: Add uses_mmap field Git-Commit-ID: d1cb9fce92c41454bd594fb0920575fc63301878 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 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Mon, 21 May 2012 00:39:15 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3487 Lines: 99 Commit-ID: d1cb9fce92c41454bd594fb0920575fc63301878 Gitweb: http://git.kernel.org/tip/d1cb9fce92c41454bd594fb0920575fc63301878 Author: Namhyung Kim AuthorDate: Wed, 16 May 2012 18:45:49 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Thu, 17 May 2012 12:32:54 -0300 perf target: Add uses_mmap field If perf doesn't mmap on event (like perf stat), it should not create per-task-per-cpu events. So just use a dummy cpu map to create a per-task event for this case. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1337161549-9870-3-git-send-email-namhyung.kim@lge.com [ committer note: renamed .need_mmap to .uses_mmap ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 3 +++ tools/perf/builtin-test.c | 1 + tools/perf/builtin-top.c | 3 +++ tools/perf/util/evlist.c | 2 ++ tools/perf/util/target.h | 1 + 5 files changed, 10 insertions(+), 0 deletions(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index d19058a..8a3dfac 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -754,6 +754,9 @@ static struct perf_record record = { .user_freq = UINT_MAX, .user_interval = ULLONG_MAX, .freq = 1000, + .target = { + .uses_mmap = true, + }, }, .write_mode = WRITE_FORCE, .file_new = true, diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c index 9d9abbb..4eaa665 100644 --- a/tools/perf/builtin-test.c +++ b/tools/perf/builtin-test.c @@ -1167,6 +1167,7 @@ static int test__PERF_RECORD(void) struct perf_record_opts opts = { .target = { .uid = UINT_MAX, + .uses_mmap = true, }, .no_delay = true, .freq = 10, diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 553560a..3e981a7 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1162,6 +1162,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __used) .freq = 1000, /* 1 KHz */ .mmap_pages = 128, .sym_pcnt_filter = 5, + .target = { + .uses_mmap = true, + }, }; char callchain_default_opt[] = "fractal,0.5,callee"; const struct option options[] = { diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 87889f3..4ac5f5a 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -611,6 +611,8 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, if (perf_target__has_task(target)) evlist->cpus = cpu_map__dummy_new(); + else if (!perf_target__has_cpu(target) && !target->uses_mmap) + evlist->cpus = cpu_map__dummy_new(); else evlist->cpus = cpu_map__new(target->cpu_list); diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h index c43f632..a4be857 100644 --- a/tools/perf/util/target.h +++ b/tools/perf/util/target.h @@ -11,6 +11,7 @@ struct perf_target { const char *uid_str; uid_t uid; bool system_wide; + bool uses_mmap; }; enum perf_target_errno { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/