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SubjectRe: ext3 throughput woes on certain (possibly heavily fragmented) files
Hans Reiser wrote:

> Sometimes it is best to confess that one does not have the expertise
> appropriate for answering a question. Someone on our mailing list
> studied it carefully though. Perhaps they can comment.

You can find all about the diploma thesis Constantin Loizides
wrote on that topic under

Alas, while fragmentation effects are measurable, their real-world-impact
is so heavily masked by even the slightest differences in the VFS of
different Linux kernel versions and the usage pattern of applications
that it is hard to make a definitive general statement.


Peter Niemayer
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