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Date: Thu, 27 Jul 2006 16:19:31 -0400
From: Christopher Faylor <cgf-no-personal-reply-please@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: cygwin copy problems usb 2.0
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On Thu, Jul 27, 2006 at 04:17:14PM -0400, Larry Hall (Cygwin) wrote:
>aldana wrote:
>>when running a little program using CopyFile() under cygwin it is about
>>as quick as totalcommander.  so it must be the abstraction layer of
>>cygwin which makes copying veeeery slow...
>
>Not necessarily.  To draw that conclusion, you would want to compare
>the implementation of 'cp' compiled natively ('gcc -mno-cygwin' for
>example) with Cygwin's and your little program.  Only if the natively
>compiled version performed much closer to your program using CopyFile()
>could you conclude that Cygwin is to blame.

Of course, cygwin and gcc don't use CopyFile at all, so this is really
just a read/write loop.

cgf

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