After Andreas talk yesterday I did some tests on my T61. This is not really a perfect benchmark setup but Andreas said I should send the data anyway. make clean (ext3) real 0m3.073s user 0m1.324s sys 0m1.444s make -j 4 (ext3) real 6m37.377s user 10m58.081s sys 1m38.890s make clean (ext4) real 0m6.443s user 0m1.712s sys 0m1.824s make -j 4 (ext4) real 6m42.694s user 10m59.593s sys 1m36.994s Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash test_filesystem That is with the patch queue from http://www.kernel.org/pub/linux/kernel/people/tytso/ext4-patches/2.6.26-ext4-1 on top of 2.6.26. Both ext3 and ext4dev are running on logical volumes (no barrier support). I used the latest e2fsprogs available. HTH, Jan -- 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