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Benchmarking Linux Filesystems In New 2.6 Kernel

Posted by michael on from the file-it-away dept.

An anonymous reader writes "KernelTrap has an interesting article about a recent benchmark conducted to compare five journaling filesystems available with the current 2.6.0-test2 Linux development kernel. The tests were conducted with a very simple shell script, mainly timing how long it takes to copy, tar, and remove directories. Looks like reiser4 is the fastest filesystem at the expense of consuming much more CPU, with ext3 trailing a ways behind."

1 of 56 comments (clear)

  1. Re:Incomplete comparison? by makapuf · · Score: 5, Insightful

    Except that if you have a mostly idle CPU and your task is more & more waiting for the disk to complete, you don't care about 11 or 30 % if the other 89 or 70 % of the CPU are idle.

    Comparing CPU cycles needed is NOT a fair benckmark, unless your task is CPU _AND_ IO Bound.(if it's not io bound, take whatever fs you have, it doesn't matter.)

    The benchmark was right in giving results as TWO parameters : CPU used and time spent. Might be interesting to see how it depends of the drive type or the CPU arch, though)