Class WallTimeEvent

extra/bench_log.py:30–39

clear_events()

class WallTimeEvent:
  def __init__(self, event:BenchEvent):
    self.event = event
  def __enter__(self):
    self.start = time.monotonic()
    return self
  def __exit__(self, *_):
    self.time = time.monotonic() - self.start
    _events[self.event]["wall"].append(self.time)
    return False

class KernelTimeEvent:
  def __init__(self, event:BenchEvent):