* (apart from group members) have enable_on_exec=1 set,
* so don't spoil it by prematurely enabling them.
*/
- if (!target__none(&opts->target))
+ if (!target__none(&opts->target) && !opts->initial_delay)
perf_evlist__enable(rec->evlist);
/*
if (forks)
perf_evlist__start_workload(rec->evlist);
+ if (opts->initial_delay) {
+ usleep(opts->initial_delay * 1000);
+ perf_evlist__enable(rec->evlist);
+ }
+
for (;;) {
int hits = rec->samples;
"record events on existing thread id"),
OPT_INTEGER('r', "realtime", &record.realtime_prio,
"collect data with this RT SCHED_FIFO priority"),
- OPT_BOOLEAN('D', "no-delay", &record.opts.no_delay,
+ OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering,
"collect data without buffering"),
OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples,
"collect raw sample records from all opened counters"),
OPT_CALLBACK('G', "cgroup", &record.evlist, "name",
"monitor event in cgroup name only",
parse_cgroups),
+ OPT_UINTEGER('D', "delay", &record.opts.initial_delay,
+ "ms to wait before starting measurement after program start"),
OPT_STRING('u', "uid", &record.opts.target.uid_str, "user",
"user to profile"),