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-rw-r--r--tools/perf/builtin-record.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f6204b8f8a06..df83dd436bdb 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2502,6 +2502,10 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
}
}
+ err = event_enable_timer__start(rec->evlist->eet);
+ if (err)
+ goto out_child;
+
trigger_ready(&auxtrace_snapshot_trigger);
trigger_ready(&switch_output_trigger);
perf_hooks__invoke_record_start();
@@ -2625,6 +2629,14 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
}
}
+ err = event_enable_timer__process(rec->evlist->eet);
+ if (err < 0)
+ goto out_child;
+ if (err) {
+ err = 0;
+ done = 1;
+ }
+
/*
* When perf is starting the traced process, at the end events
* die with the process and we wait for that. Thus no need to
@@ -2846,6 +2858,12 @@ static int perf_record_config(const char *var, const char *value, void *cb)
return 0;
}
+static int record__parse_event_enable_time(const struct option *opt, const char *str, int unset)
+{
+ struct record *rec = (struct record *)opt->value;
+
+ return evlist__parse_event_enable_time(rec->evlist, &rec->opts, str, unset);
+}
static int record__parse_affinity(const struct option *opt, const char *str, int unset)
{
@@ -3307,8 +3325,10 @@ static struct option __record_options[] = {
OPT_CALLBACK('G', "cgroup", &record.evlist, "name",
"monitor event in cgroup name only",
parse_cgroups),
- OPT_INTEGER('D', "delay", &record.opts.initial_delay,
- "ms to wait before starting measurement after program start (-1: start with events disabled)"),
+ OPT_CALLBACK('D', "delay", &record, "ms",
+ "ms to wait before starting measurement after program start (-1: start with events disabled), "
+ "or ranges of time to enable events e.g. '-D 10-20,30-40'",
+ record__parse_event_enable_time),
OPT_BOOLEAN(0, "kcore", &record.opts.kcore, "copy /proc/kcore"),
OPT_STRING('u', "uid", &record.opts.target.uid_str, "user",
"user to profile"),