How to use clock_gettime method in pytest-benchmark

Best Python code snippet using pytest-benchmark

realtime.py

Source:realtime.py

...23CLOCK_BOOTTIME = 724if platform.system() != 'Darwin' and hasattr(libc, 'clock_gettime'):25  c_clock_gettime = libc.clock_gettime26  tlocal = threading.local()27  def clock_gettime(clk_id):28    if not hasattr(tlocal, 'ts'):29      tlocal.ts = ffi.new('struct timespec *')30    ts = tlocal.ts31    r = c_clock_gettime(clk_id, ts)32    if r != 0:33      raise OSError("clock_gettime")34    return ts.tv_sec + ts.tv_nsec * 1e-935else:36  # hack. only for OS X < 10.1237  def clock_gettime(clk_id):38    return time.time()39def monotonic_time():40  return clock_gettime(CLOCK_MONOTONIC_RAW)41def sec_since_boot():42  return clock_gettime(CLOCK_BOOTTIME)43def set_realtime_priority(level):44  if os.getuid() != 0:45    print("not setting priority, not root")46    return47  if platform.machine() == "x86_64":48    NR_gettid = 18649  elif platform.machine() == "aarch64":50    NR_gettid = 17851  else:52    raise NotImplementedError53  tid = libc.syscall(NR_gettid)54  return subprocess.call(['chrt', '-f', '-p', str(level), str(tid)])55class Ratekeeper(object):56  def __init__(self, rate, print_delay_threshold=0.):...

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