Home > Backend Development > Python Tutorial > Which Python Time Measurement Function is More Accurate: clock() or time()?

Which Python Time Measurement Function is More Accurate: clock() or time()?

Susan Sarandon
Release: 2024-11-19 10:08:03
Original
1057 people have browsed it

Which Python Time Measurement Function is More Accurate: clock() or time()?

Evaluating Accuracy in Python's Time Measurement Functions: clock() vs. time()

Python provides several methods for measuring time elapsed: time.clock() and time.time(). Understanding their respective accuracies is crucial for accurate timing.

Deprecation of time.clock()

As of Python 3.3, time.clock() has been deprecated. It is recommended to use time.process_time() or time.perf_counter() instead.

Historical Context of time.clock()

Prior to Python 2.7, time.clock() on Unix systems measured the current processor time in seconds. Its precision and definition were based on the C function of the same name.

Differences Between time.clock() and time.time()

On Windows, time.clock() measured wall-clock time elapsed since its first call. However, time.time() always provides wall-clock time, regardless of the platform.

Accuracy Considerations

The accuracy of time.clock() and time.time() depends on the underlying system and hardware. On Windows, time.clock() typically offered higher precision than time.time(). However, this difference has become less significant in recent versions of Python.

Alternatives for Benchmarking

For accurate benchmarking of code snippets, it is recommended to use the timeit module. This module provides a more standardized and comprehensive framework for measuring code performance.

The above is the detailed content of Which Python Time Measurement Function is More Accurate: clock() or time()?. For more information, please follow other related articles on the PHP Chinese website!

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template