time.perf_counter() → float ¶ Return the value (in fractional seconds) of a performance counter, i.e. a clock with the highest available resolution to measure a short duration.

Jan 13, 2026 · The time.perf_counter () function returns a high-resolution timer value used to measure how long a piece of code takes to run. It is designed for performance measurement, includes time …

Feb 3, 2021 · The choice between time.time() and time.perf_counter() depends on the context in which you will use the function. That's because each function deals with a different "type of time".

Nov 5, 2024 · Learn how to use Python's time.perf_counter () for precise performance measurement and benchmarking. Master high-resolution timing in your Python applications.

Since time.clock() is deprecated as of Python 3.3, you will want to use time.perf_counter() for system-wide timing, or time.process_time() for process-wide timing, just the way you used to use time.clock():

Apr 11, 2025 · This comprehensive guide explores Python's time.perf_counter function, which provides the highest available resolution timer for benchmarking. We'll cover performance measurement, …

Oct 30, 2025 · The perf_counter() function returns a floating-point number representing a high-resolution timer value (in seconds) at the moment of the call, and is commonly used to benchmark code by …

Oct 1, 2023 · In this tutorial, you will discover the difference between the time.time () and time.perf_counter () and when to use each in your Python projects. Let's get started.

By using the time.perf_counter() function, you can measure execution time with exceptional precision, making it ideal for benchmarking. Using a timer involves recording timestamps before and after a …

Sep 19, 2023 · In this tutorial, you will discover how to benchmark Python code using the time.perf_counter () function. Let's get started. Benchmarking Python code refers to comparing the …