Messages in this thread | | | Subject | Re: partially encrypted filesystem | From | Pat LaVarre <> | Date | 09 Dec 2003 18:28:23 -0700 |
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> > Even if you were going to admit to having a block size of 64KiB to the > > layers above you, you just can't _do_ atomic replacement of blocks, > > which is required for normal file systems to operate correctly. > > Are those assumptions needed for something else than [1] recovery after > crash/powerdown? [i.e., afaics 64K ext2 should work on flash, but fsck > might have some troubles...]
2) Space occupied divided by space usable. Rounding up file sizes to 64 KiB can waste much space.
3) Thruput. Read 64 KiB to overlay one byte to write back as 64 KiB can be slow, especially in devices that spin slowly (e.g. 10,000rpm) to reach the 64 KiB block again.
4) ... anyone know?
Pat LaVarre
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