On May 19, 2011, at 9:11 AM, Vic Dura wrote:
> USB sticks are much slower than hard disk drives, but 2 minutes seems
> excessive. Did you actually time the load with a timer?
The speed of individual USB devices can vary tremendously from painfully slow
(5MB/sec) to pretty fast (25MB/sec). To get fast, you must pay a significant
premium. For comparison, your internal SATA hard drive is cranking in the
50-100MB/sec range.
It is a common misunderstanding that flash drives are faster than hard drives.
Even at their best, they are limited by the USB connection. USB2 is not a
particularly fast connection compared to a decent internal hard drive on SATA
and many implementations are weak. Older Macs, for instance, have a terrible
USB implementation that maxes out at about 11MB/sec. It does not matter how
fast your flash drive is.
Cheers,
tod
Tod Hopkins
Hillmann & Carr Inc.
[email protected]
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