snippetbashTip

stress-ng — Load and stress a Linux system in various ways (CPU, memory, I/O, etc.). Useful for benchmarking, ha

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandandloadstress-ngclistresslinuxsystem

Problem

How to use the stress-ng command: Load and stress a Linux system in various ways (CPU, memory, I/O, etc.). Useful for benchmarking, hardware validation, and stability testing. More information: <https://manned.org/stress-ng>.

Solution

stress-ng — Load and stress a Linux system in various ways (CPU, memory, I/O, etc.). Useful for benchmarking, hardware validation, and stability testing. More information: <https://manned.org/stress-ng>.

Stress all CPUs with 4 workers for 60 seconds:

stress-ng {{[-c|--cpu]}} 4 {{[-t|--timeout]}} 60s

Stress virtual memory with 2 workers for 30 seconds:

stress-ng {{[-m|--vm]}} 2 --vm-bytes {{512M}} {{[-t|--timeout]}} 30s

Stress the I/O subsystem with 3 workers for 45 seconds:

stress-ng {{[-i|--io]}} 3 {{[-t|--timeout]}} 45s

Run all stress tests for 2 minutes:

stress-ng {{[-a|--all]}} {{1}} {{[-t|--timeout]}} 2m

Code Snippets

Stress all CPUs with 4 workers for 60 seconds

stress-ng {{[-c|--cpu]}} 4 {{[-t|--timeout]}} 60s

Stress virtual memory with 2 workers for 30 seconds

stress-ng {{[-m|--vm]}} 2 --vm-bytes {{512M}} {{[-t|--timeout]}} 30s

Stress the I/O subsystem with 3 workers for 45 seconds

stress-ng {{[-i|--io]}} 3 {{[-t|--timeout]}} 45s

Run all stress tests for 2 minutes

stress-ng {{[-a|--all]}} {{1}} {{[-t|--timeout]}} 2m

Context

tldr-pages: common/stress-ng

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