lkml.org 
[lkml]   [2020]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH v3 1/4] perf record: Set PERF_RECORD_PERIOD if attr->freq is set.
From
From: David Sharp <dhsharp@google.com>

evsel__config() would only set PERF_RECORD_PERIOD if it set attr->freq
from perf record options. When it is set by libpfm events, it would not
get set. This changes evsel__config to see if attr->freq is set outside of
whether or not it changes attr->freq itself.

Signed-off-by: David Sharp <dhsharp@google.com>
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/evsel.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index fd865002cbbd..3e985016da7e 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -979,13 +979,18 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts,
if (!attr->sample_period || (opts->user_freq != UINT_MAX ||
opts->user_interval != ULLONG_MAX)) {
if (opts->freq) {
- evsel__set_sample_bit(evsel, PERIOD);
attr->freq = 1;
attr->sample_freq = opts->freq;
} else {
attr->sample_period = opts->default_interval;
}
}
+ /*
+ * If attr->freq was set (here or earlier), ask for period
+ * to be sampled.
+ */
+ if (attr->freq)
+ evsel__set_sample_bit(evsel, PERIOD);

if (opts->no_samples)
attr->sample_freq = 0;
--
2.28.0.618.gf4bc123cb7-goog
\
 
 \ /
  Last update: 2020-09-12 04:58    [W:0.027 / U:0.456 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site