On Dec 7, 2005, at 22:58, William Damkoehler wrote:
On Wednesday, December 7, 2005, at 03:32 PM, Daniel wrote:
On Dec 7, 2005, at 10:34, William Damkoehler wrote:
I'm wondering -- since I regularly de-frag my iMac's hard drive as a
means to improve performance, should I regularly de-frag my iPod
hard
drive...?
Knowing what I know of HFS+, I wonder: do you really see a measurable
performance gain by doing that?
Daniel
Assuming you mean do I see a measurable performance gain by
de-fragging the iMac's hard drive, to tell you the truth, I have no
way to measure that. It SEEMS to perform better, but that could just
be my expectation since I've been conditioned to believe that an
optimized hard disk is preferable to one that is fragmented. Are you
trying to tell us something, Daniel?
Amit Singh's document "Fragmentation in HFS Plus Volumes" might be
worth reading:
http://www.kernelthread.com/mac/apme/fragmentation/
Apple has their own remarks on the issue:
http://docs.info.apple.com/article.html?artnum=25668
Also, defragmentation made a lot more difference "back in the day" when
drives didn't use a logical structure, and when the OS could control
exactly where on the drive bytes would be written. With today's
logical drive structure, sure you can "defragment" and make that
representation of your HD look pretty, but as to whether that action
*actually* defragments the drive, you (and the defragmentation
software) have no control because the drive controls exactly where it
will write.
If you see a noticeable difference, hey, stick with what works. But
these things make me doubt whether it makes any real difference.
Daniel
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