linux-kernel - [tip:perf/core] perf sched: Move struct perf_sched definition out of cmd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Fri, 19 Jul 2013 00:48:09 -0700
From:	tip-bot for Namhyung Kim <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com,
	paulus@...ba.org, hpa@...or.com, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, namhyung.kim@....com, namhyung@...nel.org,
	jolsa@...hat.com, dsahern@...il.com, tglx@...utronix.de
Subject: [tip:perf/core] perf sched:
  Move struct perf_sched definition out of cmd_sched()

Commit-ID:  f36f83f947ede547833e462696893f866df77324
Gitweb:     http://git.kernel.org/tip/f36f83f947ede547833e462696893f866df77324
Author:     Namhyung Kim <namhyung.kim@....com>
AuthorDate: Tue, 4 Jun 2013 14:46:19 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 12 Jul 2013 13:52:35 -0300

perf sched: Move struct perf_sched definition out of cmd_sched()

For some reason it consumed quite amount of compile time when declared
as local variable, and it disappeared when moved out of the function.
Moving other variables/tables didn't help.

On my system this single-file-change build time reduced from 11s to 3s.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1370324779-16921-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-sched.c | 41 +++++++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index fed9ae4..fba4a94 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1662,28 +1662,29 @@ static int __cmd_record(int argc, const char **argv)
 	return cmd_record(i, rec_argv, NULL);
 }
 
+static const char default_sort_order[] = "avg, max, switch, runtime";
+static struct perf_sched sched = {
+	.tool = {
+		.sample		 = perf_sched__process_tracepoint_sample,
+		.comm		 = perf_event__process_comm,
+		.lost		 = perf_event__process_lost,
+		.fork		 = perf_event__process_fork,
+		.ordered_samples = true,
+	},
+	.cmp_pid	      = LIST_HEAD_INIT(sched.cmp_pid),
+	.sort_list	      = LIST_HEAD_INIT(sched.sort_list),
+	.start_work_mutex     = PTHREAD_MUTEX_INITIALIZER,
+	.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
+	.curr_pid	      = { [0 ... MAX_CPUS - 1] = -1 },
+	.sort_order	      = default_sort_order,
+	.replay_repeat	      = 10,
+	.profile_cpu	      = -1,
+	.next_shortname1      = 'A',
+	.next_shortname2      = '0',
+};
+
 int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 {
-	const char default_sort_order[] = "avg, max, switch, runtime";
-	struct perf_sched sched = {
-		.tool = {
-			.sample		 = perf_sched__process_tracepoint_sample,
-			.comm		 = perf_event__process_comm,
-			.lost		 = perf_event__process_lost,
-			.fork		 = perf_event__process_fork,
-			.ordered_samples = true,
-		},
-		.cmp_pid	      = LIST_HEAD_INIT(sched.cmp_pid),
-		.sort_list	      = LIST_HEAD_INIT(sched.sort_list),
-		.start_work_mutex     = PTHREAD_MUTEX_INITIALIZER,
-		.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
-		.curr_pid	      = { [0 ... MAX_CPUS - 1] = -1 },
-		.sort_order	      = default_sort_order,
-		.replay_repeat	      = 10,
-		.profile_cpu	      = -1,
-		.next_shortname1      = 'A',
-		.next_shortname2      = '0',
-	};
 	const struct option latency_options[] = {
 	OPT_STRING('s', "sort", &sched.sort_order, "key[,key2...]",
 		   "sort by key(s): runtime, switch, avg, max"),
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/