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Bonnie is a simple filesystem performance benchmarking tool, which helps you find bottlenecks.


Simply download the repository and build it with make. Then run it with:

  • With -s you can set the size in Mb
  • With -f you can choose if the output should be plain text or html. -f txt for text and -f html for html

Example Output

For example runnning ./Bonnie will produce the following result

File './Bonnie.2473', size: 104857600                                                                                                                                                                                                       
Writing with putc()...done                                                                                                                                                                                                                  
Writing intelligently...done                                                                                                                                                                                                                
Reading with getc()...done                                                                                                                                                                                                                  
Reading intelligently...done                                                                                                                                                                                                                
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...                                                                                                                                                                          
              -------Sequential Output-------- ---Sequential Input-- --Random--                                                                                                                                                             
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---                                                                                                                                                             
Machine    GB M/sec %CPU M/sec %CPU M/sec %CPU M/sec %CPU M/sec %CPU  /sec %CPU                                                                                                                                                             
            0  34.4 52.8  67.4 10.8  68.1  7.9  69.9 100.0 2707.1 99.3 260298 260.3