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feat: show when sleeping due to the GIL

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This commit is contained in:
Maarten A. Breddels 2020-12-15 08:48:57 +01:00
parent 6ad41d6fb6
commit 3bf1384162
1 changed files with 7 additions and 1 deletions
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8
per4m/perf2trace.py
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@ -83,6 +83,7 @@ def main(argv=sys.argv):
# a bit pendantic to keep these separated
last_run_time = {}
last_sleep_time = {}
last_sleep_stacktrace = {}
verbose = args.verbose
time_first = None
store_runing = args.running
@ -138,6 +139,7 @@ def main(argv=sys.argv):
trace_events.append(event)
last_sleep_time[pid] = time
last_sleep_stacktrace[pid] = stacktrace
del last_run_time[pid]
elif event == "sched:sched_wakeup":
# e.g: swapper 0 [040] 3498299.642199: sched:sched_waking: comm=python pid=393320 prio=120 target_cpu=040
@ -160,7 +162,11 @@ def main(argv=sys.argv):
log(f'Waking up {name}')
if store_sleeping:
dur = time - last_sleep_time[pid]
event = {"pid": parent_pid.get(pid, pid), "tid": pid, "ts": last_sleep_time[pid], "dur": dur, "name": f"S", "ph": "X", "cat": "process state"} #3579742.654826
if takes_gil(last_sleep_stacktrace[pid]):
name = 'S(GIL)'
else:
name = 'S'
event = {"pid": parent_pid.get(pid, pid), "tid": pid, "ts": last_sleep_time[pid], "dur": dur, "name": name, "ph": "X", "cat": "process state"}
trace_events.append(event)
last_run_time[pid] = time
del last_sleep_time[pid]