>>>>> "jp" == jp <[EMAIL PROTECTED]> writes:
jp> I've got a system that's got a /var/spool/mail partition which
jp> has been there for about two years and is at 60%
jp> fragmentation. Seems to work ok, but why it works ok is
jp> incomprehensible to me.
Presumably because even though 60% of the files are noncontiguous, all
of each file resides within one block group (the filesystem tries to
keep it that way). Hence, since all parts of a block group are within
small radial distance of each other (i.e. on adjacent cylinders), the
cost in extra head movement of even large amounts of fragmentation is
small for ext2fs. This is unlike, say, FAT, where parts of a
fragmented file could be anywhere on the entire partition.
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