Fun with 72GB disks: Filesystem performance testing
September 9, 2008
If you haven’t heard, the Linux Plumbers Conference is happening September 17-19, 2008 in Portland, OR. It’s a gathering designed to attract Linux developers—kernel hackers, tool developers and problem solvers.
I knew a couple people from the Portland PostgreSQL User Group (PDXPUG) interested in pitching an idea for a talk on filesystem performance. We wanted to examine performance conventional wisdom and put it to the test on some sweet new hardware, recently donated for performance testing Postgres.
Our talk was accepted, so the three of us have been furiously gathering data, and drawing interesting conclusions, ever since. We’ll be sharing 6 different assumptions about filesystem performance, tested on five different filesystems, under five types of loads generated by fio, a benchmarking tool designed by kernel hacker Jens Axboe to test I/O.
Look forward to seeing you there!