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a simple GNU/Linux multithread benchmarking tool.

Lbench can make the following measurements

  • integer-32 and floating-64 arithmetic performance
  • performance of a few engineering functions (sqrt, sin, etc.)
  • memory performance for cache memory and main memory
  • time overhead to acquire and release a mutex lock
  • time overhead to start and complete a process thread
  • time overhead to start and complete a sub-process
  • time overhead to call and return from a function
  • disk I/O throughput for various record and file sizes
  • All of these functions can be run with 1-9 parallel threads.



Verified by

Verified on




Verified by

Kelly Hopkins

Verified on

16 October 2009

Leaders and contributors

Kornelix Maintainer

Resources and communication

AudienceResource typeURI

Software prerequisites


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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