Le 21/02/2013 16:01, Hugo Mills a écrit : > That's a success. The return code for defrag is broken, and for some > reason returns 20 on success.
Thanks for the quick reply Hugo. So should I script that "for now and the future", $? 20 = OK ? > This is pretty good. You can't guarantee that any given file will be > defragmented completely. I think if the file is large (bigger than a > block group), then it'll be split across the block group boundaries. > I'd say 3 fragments is pretty good, unless it's a couple of KiB in > size... Hugo. Isn't filefrag supposed to report only non-consecutive fragments ? If not, at which number of fragments would you advise me to defrag a file ? (Another question would be : How to check directory fragmentation ?) Something extremely weird happened here : I just ran filefrag -v twice on this very file, and it gave me very different results... I don't expect the file to have changed although, as this is an initramfs which gets updated only when critical packages are - and no update of any kind took place between the 2 very different reports... Any clue ? Once : # filefrag -v /boot/initrd.img-3.5.0-24-generic Filesystem type is: 9123683e File size of /boot/initrd.img-3.5.0-24-generic is 22809774 (5569 blocks, blocksize 4096) ext logical physical expected length flags 0 0 94048 128 1 128 94176 128 2 256 94304 128 3 384 94432 128 4 512 94560 128 5 640 94688 128 6 768 94816 128 7 896 94944 128 8 1024 95072 128 9 1152 95200 128 10 1280 95328 128 11 1408 95456 128 12 1536 95584 128 13 1664 95712 128 14 1792 127044 95840 128 15 1920 127172 128 16 2048 127300 128 17 2176 127428 128 18 2304 127556 128 19 2432 127684 128 20 2560 127812 128 21 2688 127940 128 22 2816 128068 128 23 2944 128196 128 24 3072 128324 128 25 3200 128452 128 26 3328 128580 128 27 3456 128708 128 28 3584 128836 128 29 3712 128964 128 30 3840 129092 128 31 3968 129220 128 32 4096 129348 128 33 4224 129476 128 34 4352 129604 128 35 4480 129732 128 36 4608 129860 128 37 4736 129988 128 38 4864 130116 128 39 4992 130244 128 40 5120 130372 128 41 5248 130500 128 42 5376 130628 128 43 5504 21832 130756 65 eof /boot/initrd.img-3.5.0-24-generic: 3 extents found ...and then...: # filefrag -v /boot/initrd.img-3.5.0-24-generic Filesystem type is: 9123683e File size of /boot/initrd.img-3.5.0-24-generic is 22809774 (5569 blocks, blocksize 4096) ext logical physical expected length flags 0 0 94048 1792 1 1792 127044 95840 3712 2 5504 21832 130756 65 eof /boot/initrd.img-3.5.0-24-generic: 3 extents found I'm puzzled... -- Swâmi Petaramesh <sw...@petaramesh.org> http://petaramesh.org PGP 9076E32E -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
