memtester ☆

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Description:
Utility for testing the memory subsystem

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: memory testing diagnostics hardware stability

Install: brew install memtester

About:
Memtester is a command-line utility designed to stress-test memory subsystems by allocating memory and performing various test patterns. It detects intermittent hardware faults that may not be apparent during normal operation. This tool is essential for validating system stability and diagnosing RAM issues.

Key Features:

Allocates a specified amount of memory for testing
Supports multiple test patterns including random, sequential, and stride tests
Runs tests for a specified number of iterations or indefinitely
Provides detailed output on memory errors and test progress

Use Cases:

Diagnosing intermittent RAM failures or system instability
Burn-in testing for new hardware or after overclocking
Validating memory integrity in server environments

Alternatives:

memtest86+ – Boots from external media to test memory before OS loads, whereas memtester runs within the OS
stress-ng – Broader system stress testing tool that includes memory tests among other resource stressors

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 12:43am		0	VERSION_BUMP	80871c38
Sep 14, 2024 2:52am		0	VERSION_BUMP	0f204a8a