![]() ![]() You can get an idea of how much user time and system (kernel) time is being used via the -times option: If you want to run an instance of this on ALL the CPUs on your machine, specify 0 instances and stress-ng will figure out how many to run: To run 1 instance of this for 60 seconds, use: Of all the tests, this one generally heats x86 CPUs the best. ![]() The matrix stressor is a good way to exercise the CPU floating point operations as well as memory and processor data cache. This document is a quick-start reference guide and covers some of the more typical use cases for stress-ng. Intel processor diagnostic tool fail parallel full#The tool has a wide range of different stress mechanisms (known as "stressors") and a full description of these is included in the man page. ![]() Use stress-ng with caution as some of the tests can make a system run hot on poorly designed hardware and also can cause excessive system thrashing which may be difficult to stop. Stress-ng was originally intended to make a machine work hard and trip hardware issues such as thermal overruns as well as operating system bugs that only occur when a system is being thrashed hard. stress-ng also has a wide range of CPU specific stress tests that exercise floating point, integer, bit manipulation and control flow. It was designed to exercise various physical subsystems of a computer as well as the various operating system kernel interfaces. Stress-ng will stress test a computer system in various selectable ways. ![]()
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