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Mail Archives: cygwin/2007/03/28/17:42:44

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Date: Wed, 28 Mar 2007 18:42:20 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: bash completion slow
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Christopher Wingert wrote:
> Hi Eric,
> 
> Thanks for the reply.
> 
> The triple stat() issue I am talking about is a thread/patch that I read
> from the 2002 timeframe.  I don't think the patch got integrated back tho.
> http://sourceware.org/ml/cygwin/2002-05/msg01600.html
> There was another thread that I can't find right now.
> 
> Actually Linux readdir doesn't provide any clues about the file either, it
> returns the dirent structure.
> 
> However, this really opens my eyes as to the problem :
> 
>> operations, the result of which is just discarded).  With directories in
>> particular, part of the slowdown is that stat()'s st_nlink field is
>> populated by counting how many files appear in that sub-directory, even
>> though readline didn't care about that.
> 
> I had the same issue with a tab in /cygdrive/c/ (obviously due to the
> nasty-ness of the Windows directory).  My directory of 300 subdirectories
> has umpteen files in the subdirectories.
> 
> What about turning this subdirectory parsing off by feeding a -1 in
> st_nlink in Cygwin?  How could I propose such a change for cygwin?


The best way is to create a patch and then send it to the cygwin-patches
list.  From there, any debate can and will proceed.


-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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