about fragmentation (of free disk space)

Michael David Crawford mdcrawford at gmail.com
Sun Oct 11 20:57:08 PDT 2015

In principle a highly fragmented disk has less payload capacity, and
will be slower to access because of all the indirect blocks.

I don't know whether that makes a real-world difference.
Michael David Crawford P.E., Consulting Process Architect
mdcrawford at gmail.com

      One Must Not Trifle With Wizards For It Makes Us Soggy And Hard To Light.

On Sun, Oct 11, 2015 at 8:06 PM, James Linder <jam at tigger.ws> wrote:
>> On 12 Oct 2015, at 3:00 am, macports-users-request at lists.macosforge.org wrote:
>>> random access time for a SSD is 1-3 orders of magnitude less than for a rotational drive.
>>> As with anything, you need to measure ?real world use? to be certain, but it?s probably not an issue for SSDs at all.
>> I'm not expecting it to be in real world usage, of course. OTOH, frequent defragmenting is probably not a good idea on SSDs.
> Actually defrag of an SSD is a VERY BAD IDEA. It will drasically reduce the life of your SSD, the fuller the disk the more fragmented the more it will eat your disk.
> James
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