USB transfer speed "logarithmically" decreases. Why and can it be improved?
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starship
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Published on 2012-01-29T21:36:28Z
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2012/10/31
5:09 UTC
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I have an external hard drive. Just today I tried to copy a bigger file (it was film of ~230 MB) and at first it rushed up until ~70%. There is started decreasing.
- At first it started at around 56 MB/s
- Then it rapidly dropped to 23 MB/s (File transfer was 70% complete)
- Then it slowly started decreasing until it was around 2 MB/s (File was ~90% complete)
- When it finished the transfer it was slightly above 1.5 MB/s.
To describe it graphically: If you drew a curve of the decrease it would probably resemble the graph of a logarithm function
So, what I'm really asking is: "Why does this happen?" and "Is there a way around it?"
Thank you!
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