[PATCH 2/3] perf: Always record tracepoints raw samples from perf record

From: Frederic Weisbecker
Date: Wed Apr 14 2010 - 16:51:50 EST


Trace events are mostly used for tracing rather than simple
counting. Don't bother anymore with adding -R when using them,
just record raw samples of trace events every time.

Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
tools/perf/Documentation/perf-record.txt | 2 +-
tools/perf/util/parse-events.c | 14 ++++----------
2 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index b29bd2d..020d871 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -101,7 +101,7 @@ OPTIONS

-R::
--raw-samples::
-Collect raw sample records from all opened counters (typically for tracepoint counters).
+Collect raw sample records from all opened counters (default for tracepoint counters).

SEE ALSO
--------
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 435781e..880070c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -410,7 +410,6 @@ static enum event_result
parse_single_tracepoint_event(char *sys_name,
const char *evt_name,
unsigned int evt_length,
- char *flags,
struct perf_event_attr *attr,
const char **strp)
{
@@ -419,13 +418,9 @@ parse_single_tracepoint_event(char *sys_name,
u64 id;
int fd;

- if (flags) {
- if (!strncmp(flags, "record", strlen(flags))) {
- attr->sample_type |= PERF_SAMPLE_RAW;
- attr->sample_type |= PERF_SAMPLE_TIME;
- attr->sample_type |= PERF_SAMPLE_CPU;
- }
- }
+ attr->sample_type |= PERF_SAMPLE_RAW;
+ attr->sample_type |= PERF_SAMPLE_TIME;
+ attr->sample_type |= PERF_SAMPLE_CPU;

snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
sys_name, evt_name);
@@ -533,8 +528,7 @@ static enum event_result parse_tracepoint_event(const char **strp,
flags);
} else
return parse_single_tracepoint_event(sys_name, evt_name,
- evt_length, flags,
- attr, strp);
+ evt_length, attr, strp);
}

static enum event_result
--
1.6.2.3

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