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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.


The user guide is available from the [help] button and goes into more detail about each benchmark and its configurable parameters.


Download version 3.2 (stable)
released on 29 December 2016



LicenseVerified byVerified onNotes
License:GPLv3Kelly Hopkins16 October 2009

Leaders and contributors

Kornelix Maintainer

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Software prerequisites

This entry (in part or in whole) was last reviewed on 20 January 2017.


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