Messages in this thread | | | Date | Fri, 09 Jun 2006 21:09:14 -0400 | From | Jeff Garzik <> | Subject | Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3 |
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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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