iDefrag respects the "Hot File" zone so it will not slow down OS X.
OS X's automatic defragmentation is good, but has limitations; it won't defragment free space, files larger than 20 MB or files with fewer than 8 fragments.
Also, iDefrag will optmize your hard drive, moving OS files close together, which can make a difference.
Of course, your mileage will vary. See our web-site for more information.
From Developer:
iDefrag respects the "Hot File" zone so it will not slow down OS X.
OS X's automatic defragmentation is good, but has limitations; it won't defragment free space, files larger than 20 MB or files with fewer than 8 fragments.
Also, iDefrag will optmize your hard drive, moving OS files close together, which can make a difference.
Of course, your mileage will vary. See our web-site for more information.