Filesystems comparison using iozone

Collected data can be found here
Data are collected on one "shot", we should make several shots and compute average.
See iozone website for more details on tests and values.

1. Existing filesystems

Comparison between ext2, ext3 ordered, ext3 with extents, multiple block allocation and delayed allocation patches, reiserfs, jfs. Results are quite similar, but we can see improvement between ext3 without patches and ext3 with delaye allocation patch on writing tests.













2. Ext3 + Alex's patches

Comparison between all Alex's patches on ext3, in ordered and writeback mode.
The important thing to notice here is the impact of the delayed allocation patch in all writing cases.