Slashdot Mirror


Mac OS X 10.3 Defrags Automatically

EverLurking writes "There is a very interesting discussion over at Ars' Mac Forum about how Mac OS X 10.3 has implemented an on-the-fly defragmentation scheme for files on the hard drive. Apparently it uses a method known as 'Hot-File-Adaptive-Clustering' to consolidate fragmented files that are under 20 MB in size as they are accessed. Source code from the Davwin 7.0 Kernel is cited as proof that this is happening."

2 of 181 comments (clear)

  1. Re:Hmm... by Caesar · · Score: 1, Troll

    It'll survive, but I'm not sure I will when the next bill comes ;)

  2. Re:Amortized cost... by MikeXpop · · Score: 1, Troll

    No kidding it slows down!

    I don't want to start a holy war here, but what is the deal with you Hot-File-Adaptive-Clustering fanatics? I've been sitting here at my freelance gig in front of a Panther machine (OS 10.3) for about 22 minutes now while it attempts to defrag a 20 Meg file on my hard drive. 22 minutes. At home, on my B&W G3 running Jaguar, which by all standards should be a lot slower than Panther, the same operation would take about 2 minutes. If that.

    In addition, during this defrag, 17 MB files will not copy. And everything else has ground to a halt. Even Expose is straining to keep up as I type this.

    I won't bore you with the laundry list of other problems that I've encountered while working with auto-defrag on, but suffice it to say there have been many, not the least of which is I've never seen a Panther machine that has run faster than other apples, despite the OS's advancements. System 7 runs faster than Panther at times. From a productivity standpoint, I don't get how people can claim that Panther is a "superior" OS.

    Panther addicts, flame me if you'd like, but I'd rather hear some intelligent reasons why anyone would choose to upgrade to Panther over other faster, cheaper, more stable OS's.

    --
    Etiquette is etiquette. He kills his mother but he can't wear grey trousers.