On May 11, 2010, at 8:42 PM, Carsten Munk wrote: > 2010/5/11 <[email protected]> wrote: >> As reasoning from Arjan sounds good, we obviously >> now need to do some testing with N900 & Btrfs as well. >> >> While filesystem is perhaps not something that must be >> the same between devices, it would be nice to use same. >> > > One initial worry would be kernel bloat/size - on a N900, we have a > limit of a 2MB zImage kernel. We had some problems trying to move from > ext3 to ext4 at some point and my worry is that btrfs would bring us > above that again.
What about the lack of support for Flash memory? Not being able to put files on flash would be a significant set back in a embedded environment. > > Howeer, Marko Saukko did make a (rescue) initrd we can be utilizing to > load btrfs modules. Not as elegant as booting straight to a ext3 fs, > but it would do the trick. > > On a 2gb microSD, 200-300mb of metadata would be quite a fair bit*. > Has there been any studies on how well btrfs fares on SD cards/eMMC > type chips? > > (*) Not against the selection of btrfs - I use ZFS on my servers > extensively and it has saved my data on more than one occasion, so I > understand why btrfs would be useful on mobile devices. ZFS and btrfs are great. Perhaps they will fit well into a Mobile computing environment, but I have some concerns about a truly embedded environment. Jeremiah _______________________________________________ MeeGo-dev mailing list [email protected] http://lists.meego.com/listinfo/meego-dev
