Tuesday, March 30, 2010

btrfs

Thinking about taking the leap to btrfs... Here are some bonnie++ numbers for ext3 & btrfs filesystems mounted via loopback, as well as the raw underlying filesystem (ext3):

                              ext3  btrfs    raw
Sequential Output (Char) 491 309 790
Sequential Output (Block) 78512 50047 58462
Sequential Output (Rewrite) 28843 32065 31820
Sequential Input (Char) 2200 3887 2725
Sequential Input (Block) 70306 79169 78204
Random Seeks 156 114 175


Nothing too interesting, but it looks like sequential input performed well. Sequential output didn't (but the ext3/loopback did much better than ext3/raw, so maybe it's just noise?).