On Fri, Apr 27, 2007 at 03:41:19PM +0200, Valerie Clement wrote: > As asked by Alex, I included in the test results the file fragmentation > level and the number of I/Os done during the file deletion. > > Here are the results obtained with a not very fragmented 100-GB file: > > | ext3 ext4 + extents xfs > ------------------------------------------------------------ > nb of fragments | 796 798 15 > elapsed time | 2m0.306s 0m11.127s 0m0.553s > | > blks read | 206600 6416 352 > blks written | 13592 13064 104 > ------------------------------------------------------------ The metablockgroups feature should help the file fragmentation level with extents. It's easy enough to enable this for ext4 (we just need to remove some checks in ext4_check_descriptors), so we should just do it. - Ted - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
