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On Thu, Aug 03, 2006 at 02:11:00AM +0200, Reini Urban wrote:...Christopher Faylor schrieb:On Thu, Jul 27, 2006 at 11:11:07PM +0200, Corinna Vinschen wrote:On Jul 27 13:48, aldana wrote:isn't there a possibitly that cygwin provides a quicker cp-implementation? i mean 4 minutes for a copy of 70MB to a memstick (instead of CopyFile() 20 sec.) is not really good performance. i guess there is a reason for that...Right, how did you know? The reason is that cp is a portable implementation using simple reads and writes to perform the copy. There's no such thing as a CopyFile routine on POSIX systems.A few weeks ago there was a guy in libc-alpha mailing list complaining that glibc's API wasn't as rich and powerful as what is found on Windows.
I'm really seeing the non-optimized cygwin cp behaviour causing bad reputation, which could be easily patched and maybe even accepted upstream. Who knows. Eric what do think? Would it be worthful to think about?
If this is what you want then you should look into a non-cygwin solution. There are a couple of projects which provide GNU tools for Windows without resorting to something like the Cygwin DLL.
Also, don't you see something wrong with the mindset of "Windows Fast.
Cygwin Slow. So, must use straight Windows functions." without even
bothering to do any research into what is causing the slowness?
How do you, or anyone who cares about this know that this "problem", know that it isn't correctable without resorting to patching cp?
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