In a way, they're right: HFS+ is pretty good at keeping small to medium sized files from getting fragmented it isn't particular good, however, at keeping large files or free space from fragmenting, a particular problem on the Mac because the swapfile must be contiguous on the disk, so you can actually run out of virtual memory long before you run out of disk space if your free space is fragmented.Īnother objection, this time raised by Apple, is that existing defragmentation tools may actually slow your machine down by moving files into or out of the "Hot Band", defeating Panther's Adaptive Hot File Clustering code. Some people say that HFS+ is so good that you don't need to defragment. IDefrag defragments and optimizes your disk for improved performance.Īdd in the size of some of the files in common use today, especially music, video, graphics and computer games, and even the best filesystem has trouble keeping things contiguous. This, of course, doesn't show up as fragmentation after all, the files themselves are probably contiguous but nevertheless, it takes your machine longer to start up, it takes programs longer to start, and above all, it takes longer to get your work done.
This is particularly true in these days of constant security updates as replacing operating system components not only increases the potential for file fragmentation, but also creates a more insidious problem over time, the operating system itself ends up scattered all over your disk. Every computer user has noticed it over time, your system slows down Version: 1.7.1Įvery computer user has noticed it over time, your system slows down.
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