Re: NT directory traversal speed on 25K files on Cygwin

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Rutger Nijlunsing wrote:
On Sun, Feb 26, 2006 at 02:55:52PM -0500, Christopher Faylor wrote:

On Thu, Feb 23, 2006 at 03:07:07PM +0100, Alex Riesen wrote:

filesystem is slow and locked down, and exec-attribute is NOT really
useful even on NTFS (it is somehow related to execute permission and
open files.  I still cannot figure out how exactly are they related).

Again, it's not clear if you're talking about Windows or Cygwin but
under Cygwin, in the default configuration, the exec attribute means the
same thing to cygwin as it does to linux.


I don't know about native Windows speed, but comparing NutCracker with
Cygwin on a simple 'find . | wc -l' already gives a clue that looking
at Cygwin to benchmark NT file inspection IO will give a skewed
picture:


Well, naturally. Cygwin is a userland implementation of a sane filesystem on top of a less sane one. File IO is bound to be slower when one FS is emulated on top of another. I think cygwin users are aware of this and simply accept the speed-for-sanity tradeoff. I know I would.

--
Andreas Ericsson                   andreas.ericsson@xxxxxx
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231
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