On Sat, 17 Jan 2009 11:03:03 +1100 Chris Samuel <ch...@csamuel.org> babbled:
> On Sat, 17 Jan 2009 10:14:53 am Nick Van Fossen wrote: > > > So, I'm a bit lazy so instead of going through the trouble of adding a swap > > partition, I just created a swap file. > > I would say that you're not necessarily being lazy there, if you configure a > swap partition then you are limiting where the kernel can write bytes on the > SD card which will lead to uneven wear on it. > > In future with a COW SSD aware wear-leveling filesystem like btrfs a swap > file may end up being more SD friendly as the filesystem may (hopefully!) > balance out those writes across the card. as such the sd-card should be doing wear-levelling for you as it maps logical to physical addresses and has an erase pool with extra blocks to play with. it can be "improved" by a better fs aware of the algorithms that card uses - but each card may be different depending on maker... wear-levelling is part of the spec for sd and hidden behind the sd access interface - so card manufacturer will determine quality of this... so spend your money wisely and get a good reputable sd card from the major names that come with lifetime warranties. -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) ras...@rasterman.com _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community