GNU bug report logs - #5833
23.1.94; Opening files on network shares on w32 is slow

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From: Jason Rumney <jasonr <at> f2s.com>
To: bug-gnu-emacs <at> gnu.org
Subject: bug#5833: 23.1.94; Opening files on network shares on w32 is slow
Date: Tue, 06 Apr 2010 08:12:22 +0800

On 06/04/2010 04:15, Stefan Monnier wrote:
>>>   (setq locate-dominating-stop-dir-regexp "")
>>>        
>> That maybe shaves off half a second.
>>      
> Hmm... odd.  That seemed like a pretty good guess
> (locate-dominating-file tends to suffer from such performance problems
> in some cases, and vc-handled-backends is one user of this function,
> and dir-locals is another, so setting locate-dominating-stop-dir-regexp
> should really kill it off).
>    

I think it odd that it shaved time off rather than made things much 
worse.  One of the reasons for this variable is that when Windows tries 
to locate all the siblings of //machine, and in some cases 
//machine/share (where the user only has access to some shares), the 
process takes a long time. Perhaps the original value is incorrect?

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