Your opinion on this fact is, in fact, incorrect. I don't do Windows, what I discuss has nothing to do with Windows and everything to do with how data is written to disk and how VM is managed.
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Wow! Just wow. Windows HDD fragmentation--particularly in FAT-based file systems used for DOS-based Windows--displayed substantial performance degradation with a day's time even on HDDs with in excess of 50% free capacity.
I have benchmarked Macs running HFS and later HFS+ both before and after file optimization going back to System 7. In none of my 24 years as a Mac user have I ever found a measurable performance benefit above noise level provided by file optimization. I had begun to dismiss fragmentation performance hits as an urban legend until I accepted responsibility for the care and feeding of my secretary's Windows computer.
On Windows, the performance degradation of the OS is significant. The performance improvement caused by running the
DEFRAG utility is nothing less than dramatic.
To claim that you are a Mac user who has no reference point in Windows is disingenuous in the extreme. Millions of Mac users run their computers for years with never a defrag. If it were necessary to defrag your Mac, then Apple would have done what Microsoft did. Apple would have shipped each computer with a defrag utility. Actually, it would added the functionality to
Disk Utilities.
Among the many things that you don't understand that defrag utiliies were necessary in the Windows/DOS world due to the design failures of Microsoft file systems. Apple is not Microsoft. It does not suffer these kinds of design failures on its users.
The only way for you to see the kind of performance hit in OS X that Windows users see on their computers is to smoke some really good stuff. What are you smoking?
