On Thu, Dec 4, 2008 at 1:24 AM, Frantisek Dufka <dufkaf@xxxxxxxxx> wrote: > Mark wrote: > >> ...by which you're admitting that no wear levelling algorithm is >> perfect... > > Yes, sure, nothing is :-) Still I think anything is better than FAT > filesystem with synchronous writes (FAT table updated after writing each > cluster) which is typical usage for memory cards. Ext2 or even ext3 which > asynchronous writes and noatime should be much better. > > Here are quite interesting links I found later > > http://www.gossamer-threads.com/lists/linux/kernel/984032#984032 > http://www.linuxconf.eu/2007/papers/Engel.pdf > http://www.linux-mtd.infradead.org/doc/ubifs.html#L_raw_vs_ftl > > But the OS filesystem is irrelevant on removable memory cards that have their own controllers, such as SD and Compact Flash. The OS doesn't have access to the low-level functions that direct specific sector usage. Theory and reality are often quite different. Mark _______________________________________________ maemo-users mailing list maemo-users@xxxxxxxxx https://lists.maemo.org/mailman/listinfo/maemo-users
