|
|
|
|
|
|
|
|
import logging |
|
|
import pstats |
|
|
import cProfile |
|
|
import contextlib |
|
|
|
|
|
def _colored(st, color, background=False): |
|
|
return f"\u001b[{10*background+60*(color.upper() == color)+30+['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white'].index(color.lower())}m{st}\u001b[0m" if color is not None else st |
|
|
|
|
|
def _format_fcn(fcn): |
|
|
return f"{fcn[0]}:{fcn[1]}:{fcn[2]}" |
|
|
|
|
|
class py_profiler(contextlib.ContextDecorator): |
|
|
def __init__(self, enabled=True, sort='cumtime', fn=None, ts=1): |
|
|
self.enabled, self.sort, self.fn, self.time_scale = enabled, sort, fn, 1e3/ts |
|
|
def __enter__(self): |
|
|
self.pr = cProfile.Profile() |
|
|
if self.enabled: |
|
|
self.pr.enable() |
|
|
def __exit__(self, *exc): |
|
|
if self.enabled: |
|
|
self.pr.disable() |
|
|
if self.fn: |
|
|
self.pr.dump_stats(self.fn) |
|
|
stats = pstats.Stats(self.pr).strip_dirs().sort_stats(self.sort) |
|
|
for fcn in stats.fcn_list[0:int(len(stats.fcn_list))]: |
|
|
(_primitive_calls, num_calls, tottime, cumtime, callers) = stats.stats[fcn] |
|
|
scallers = sorted(callers.items(), key=lambda x: -x[1][2]) |
|
|
print(f"n:{num_calls:8d} tm:{tottime*self.time_scale:7.2f}ms tot:{cumtime*self.time_scale:7.2f}ms", _colored(_format_fcn(fcn).ljust(50), "yellow")) |
|
|
|
|
|
|
|
|
if __name__ == "__main__": |
|
|
def fn(): |
|
|
s = 0 |
|
|
for i in range(10000000): |
|
|
s += i |
|
|
return s |
|
|
|
|
|
with py_profiler(): |
|
|
fn() |
|
|
|
