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SubjectRe: [Ext2-devel] [RFC] extents support for EXT3
On Thu, Aug 28, 2003 at 12:22:04PM +0400, Alex Tomas wrote:
> this is 2nd version of the patch. changes:
> - error handling seems completed
> - lots of cleanups and comments
> - few minor bug fixed
> this version of the patch tries to solve couple
> of corner cases:
> - very long truncate
> - rewrite
> it survived dbench, bonnie++ and fsx tests.
> take a look at numbers I've just got, please.
> before after
> 5GB file, creation: 2m31.197s 2m21.933s
> 5GB file, read: 2m25.439s 2m24.833s
> 5GB file, rewrite: 2m48.434s 2m20.958s
> 5GB file, removal: 0m8.760s 0m0.858s

With extents, what are the worst/best cases for max file size on a 1k block
filesystem? AFAICT, worst case is 16GB if it backs out to the second level
like we have now...
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