Files.copy does userspace copies but FileChannel uses sendfile

[Alan Bateman]

On 12/10/2016 00:30, Max Kanat-Alexander wrote:

> :
>
> Should these be merged? Or should the Java-side implementation of 
> Files.copy be changed to use FileChannel underneath?
>
>
It's been a copy while the performance was checked but the last time 
then sendfile was great for file <--> socket but we weren't see any 
benefit for file <--> file. Kernels improve and there are many different 
file systems so it probably should be remeasured. If there are benefits 
to the FileSystemProvider to use sendfile then it could do that.

-Alan
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