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Mail Archives: cygwin/2010/06/07/04:55:29

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Date: Mon, 7 Jun 2010 10:55:17 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Cygwin Performance and stat()
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On Jun  6 19:28, Christopher Faylor wrote:
> On Mon, Jun 07, 2010 at 12:12:36AM +0200, Matthias Andree wrote:
> >Meaning that: even if I'm only a Cygwin user, and I'm sometimes  
> >disappointed by how slow it is, too, I'm sort of convinced there isn't a  
> >cheaper way to get all the required information.
> 
> I'm disappointed in Cygwin's slowness too.  Corinna and I have spent
> many hours pouring over MSDN, internals books, and internals web sites.
> I've spent time looking at ReactOS sources trying to see if they would
> provide any insight into how Windows does things.
> 
> It's possible, maybe even likely, that there are things that could be
> done to speed up Cygwin but I don't think it's likely that they include
> using simple Windows API stuff like the suggested GetFileAttributes() or
> limiting Cygwin's POSIXness.

Full ACK.

>   And, if speed ups do exist, they
> definitely do not require a private audience with me or Corinna.
> 
> The best place to discuss improvements is actually the cygwin-developers
> mailing list.  And, as I said, if you do have a patch to propose, it
> would pay to start early on getting the paperwork done.

Indeed.  It would be rather cool if some interested developer would dive
into this code and maybe just look from a different perspective.  I
don't like the idea to cripple the stat API, though.  There's certainly
room for improvement in other ways while maintaining information
completeness of the stat function.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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