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SubjectRe: [Ext2-devel] disk throughput
On Nov 05, 2001  14:22 -0800, Andrew Morton wrote:
> But I don't know. This is just all bullshit handwaving speculation.
> We need tests. Numbers. Does anyone have source to a filesystem
> aging simulation? The Smith/Seltzer code seems to be off the air.

There is a guy doing fragmentation testing for reiserfs. It turns
out that (in his tests) reiserfs can get 10x slower as the filesystem
fills up because of intra-file fragmentation. I don't know enough
about reiserfs block/file allocation policy to know how this compares
to ext2 at all.

See http://www.informatik.uni-frankfurt.de/~loizides/reiserfs/agetest.html

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/

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