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re: File Copy Program Suggestions Besides TeraCopy
Posted on 8/11/16 at 11:21 pm to WavinWilly
Posted on 8/11/16 at 11:21 pm to WavinWilly
Not sure how multithreading helps with file copying, which is I/O bound by definition. Given enough time to run, and especially with larger files, it will reach a point where the destination drive can't keep up with the cached data to be copied, and then, it can't be any better than single threading. It could actually be worse, especially with spinning disks due to thrashing. Also, if it's implemented poorly, it could fragment the copied files. That all assumes different source and destination disks. If they're the same, multithreading can only hurt.
1
Posted on 8/12/16 at 8:06 am to Spock's Eyebrow
It definitely depends on the situation. If you have lots of small files, copying one at a time will likely be significantly slower than doing multiple. You are right that there would definitely be diminishing returns on multithreading when you're copying from a single drive to another, or even the same disk.
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