Theodore Tso wrote:
Jeff, you seem to think that the fact that the layout isn't precisely
the same after an on-line resizing is proof of something horrible, but
it isn't. The exact location of filesystem metadata has never been
fixed, not in the past ten years of ext2/3 history, and this is not a
big deal. It certainly isn't "proof" of on-line resizing being
something horrible, as you keep trying to claim, without any arguments
other than, "The layout is different!".
No, I was proving merely that it is _different_. And the values where
you see a _difference_ are the ones of which are no longer sized
optimally, after you grow the fs to a larger size.
So you incur a performance penalty for resizing to size S2, rather than
mke2fs'ing the new blkdev at size S2. Certainly within the confines of
ext3 that cannot be helped, but a different inode allocation strategy
could improve upon that.
Jeff
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