Comment on How come it seems the transfer rate from an hard drive to usb is noticably slower? But a usb to usb is incredibly fast?

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thebestaquaman@lemmy.world ⁨2⁩ ⁨days⁩ ago

First of all: I hate that you’re downvoted when you’re explicitly up-front about having zero expertise on this, before putting forward a completely valid hypothesis.

Secondly: It’s very unlikely that formatting is the culprit here. I/O operations (read/write) are far slower than CPU operations, especially on spin-discs (like HDD’s), they can be several orders of magnitude slower. When you copy data, it’s basically

Whichever of these is your choke-point will determine your speed. It’s very unlikely that a pure copy operation will be choked by the CPU-bound task. Much more likely that the read/write speed of the HDD is the culprit.

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