[tip:perfcounters/core] perf sched: Output runtime and context switch totals

tip-bot for Ingo Molnar
2009-09-15T09:33:40Z

Commit-ID: 3e304147cdb404ce6d1dd0e50cb19f52142bb363
Gitweb: http://git.kernel.org/tip/3e304147cdb404ce6d1dd0e50cb19f52142bb363
Author: Ingo Molnar <mingo@elte.hu>
AuthorDate: Sat, 12 Sep 2009 10:08:34 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Sun, 13 Sep 2009 10:22:45 +0200

perf sched: Output runtime and context switch totals

After:

-----------------------------------------------------------------------------------
Task | Runtime ms | Switches | Average delay ms | Maximum delay ms |
-----------------------------------------------------------------------------------
make | 0.678 ms | 13 | avg: 0.018 ms | max: 0.050 ms |
gcc | 0.014 ms | 2 | avg: 0.320 ms | max: 0.627 ms |
gcc | 0.000 ms | 2 | avg: 0.185 ms | max: 0.369 ms |
...
-----------------------------------------------------------------------------------
TOTAL: | 21.316 ms | 63 |
---------------------------------------------

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

---
tools/perf/builtin-sched.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index c382f53..727cc5b 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1087,6 +1087,9 @@ static struct trace_sched_handler lat_ops = {
.fork_event = latency_fork_event,
};

+static u64 all_runtime;
+static u64 all_count;
+
static void output_lat_thread(struct thread_latency *lat)
{
struct lat_snapshot *shot;
@@ -1111,6 +1114,9 @@ static void output_lat_thread(struct thread_latency *lat)
total += delta;
}

+ all_runtime += total_runtime;
+ all_count += count;
+
if (!count)
return;

@@ -1133,7 +1139,7 @@ static void __cmd_lat(void)
read_events();

printf("-----------------------------------------------------------------------------------\n");
- printf(" Task | runtime ms | switches | average delay ms | maximum delay ms |\n");
+ printf(" Task | Runtime ms | Switches | Average delay ms | Maximum delay ms |\n");
printf("-----------------------------------------------------------------------------------\n");

next = rb_first(&lat_snapshot_root);
@@ -1147,6 +1153,9 @@ static void __cmd_lat(void)
}

printf("-----------------------------------------------------------------------------------\n");
+ printf(" TOTAL: |%9.3f ms |%9Ld |\n",
+ (double)all_runtime/1e9, all_count);
+ printf("---------------------------------------------\n");
}

static struct trace_sched_handler *trace_handler;