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chore: import upstream snapshot with attribution
2026-07-13 12:49:20 +08:00

99 行
2.7 KiB
Python

#! /usr/bin/env python
# Copyright (c) 2023 Predibase, Inc., 2019 Uber Technologies, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
import logging
import time
from datetime import datetime, timedelta
logger = logging.getLogger(__name__)
class WithTimer:
def __init__(self, title="", quiet=False):
self.title = title
self.quiet = quiet
def elapsed(self):
return time.time() - self.wall, time.process_time() - self.proc
def enter(self):
"""Manually trigger enter."""
self.__enter__()
def __enter__(self):
self.proc = time.process_time()
self.wall = time.time()
return self
def __exit__(self, *args):
if not self.quiet:
elapsed_wp = self.elapsed()
logger.info(f"Elapsed {self.title}: wall {elapsed_wp[0]:.06f}, sys {elapsed_wp[1]:.06f}")
class Timer:
def __init__(self):
self.reset()
def reset(self):
self._proc = time.process_time()
self._wall = time.time()
def elapsed(self):
return self.wall(), self.proc()
def elapsed_str(self):
return strdelta(self.wall() * 1000.0), strdelta(self.proc() * 1000.0)
def wall(self):
return time.time() - self._wall
def proc(self):
return time.process_time() - self._proc
def tic(self):
"""Like Matlab tic/toc for wall time and processor time."""
self.reset()
def toc(self):
"""Like Matlab tic/toc for wall time."""
return self.wall()
def tocproc(self):
"""Like Matlab tic/toc, but for processor time."""
return self.proc()
def timestamp():
return f"{datetime.now():%Y_%m_%d_%H_%M_%S}"
def strdelta(tdelta):
if isinstance(tdelta, (int, float)):
tdelta = timedelta(milliseconds=tdelta)
d = {"D": tdelta.days}
d["H"], rem = divmod(tdelta.seconds, 3600)
d["M"], d["S"] = divmod(rem, 60)
d["f"] = str(tdelta.microseconds)[0:4]
if d["D"] > 0:
t = "{D}d {H}h {M}m {S}.{f}s"
elif d["H"] > 0:
t = "{H}h {M}m {S}.{f}s"
elif d["M"] > 0:
t = "{M}m {S}.{f}s"
else:
t = "{S}.{f}s"
return t.format(**d)