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gettimeofday

3 articles · Page 1 of 1
Liangxu Linux
Liangxu Linux
Jan 14, 2025 · Fundamentals

How to Measure Execution Time in C with time(), clock() and gettimeofday()

This guide shows how to benchmark C code by measuring elapsed time using the standard time() function for second‑level precision, clock() for higher CPU‑time accuracy, and gettimeofday() for microsecond‑level resolution, including complete example programs and key considerations.

C++Performancebenchmarking
0 likes · 4 min read
How to Measure Execution Time in C with time(), clock() and gettimeofday()
Open Source Linux
Open Source Linux
Dec 12, 2024 · Fundamentals

Measure Execution Time in C: time(), clock() and gettimeofday()

This guide demonstrates how to use the C standard library functions time(), clock(), and the POSIX gettimeofday() to measure code execution duration, comparing their precision levels and showing sample code snippets that illustrate typical usage and output.

C++clockgettimeofday
0 likes · 4 min read
Measure Execution Time in C: time(), clock() and gettimeofday()