Err, no. The ext3 journal overhead buys you not needing to fsck after
an unclean shutdown, and safety against crap getting written to the
inode table on an unclean power hit while the disk drive is writing
and the memory goes insane before the DMA engine and disk drive stop
working from the voltage on the power supply rails. (Hence my advice
that if you use XFS on Linux, make *sure* you have a UPS; on machines
such as the SGI Indy they added bigger capacitors to the PSU and a
real power fail interrupt, but PC-class hardware is
inexpensive/crappy, so it doesn't have such niceties.)
- Ted
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