Flash Filesystem Benchmarks

Free Electrons has performed flash filesystem benchmarks, with funding from the CE Linux Forum , and presented the results at ELC Europe 2010.

Test methodology

See our ELCE 2010 presentation for complete details and benchmark results.

Test automation scripts

Free Electrons created Python scripts that automate the execution of commands through a serial line (including bootloader and kernel booting), and measure the time taken to execute these commands. The scripts were designed to be generic, and support for new boards can easily be added by creating board specific Python definitions.

The current version of these scripts can be found on gitorious, and are released under the terms of the GPLv2 license. Working board automation files are provided for the CALAO USB-A9263-C02 and IGEPv2 boards. You will need to build a root filesystem to run the tests on and create filesystems of different sizes (8, 32, 252 and 508 MB) to be tested ; both of which that have been used by Free Electrons will be available soon.

A description of what these scripts measure, and how, is available here.

Comparison of different versions of the Kernel

See this page to find possible regressions

Linux 2.6.39 results

See this page for the results

Linux 2.6.38 results

See this page for the results

Linux 2.6.36 results

See this page for the results