* UNC paths vs mapped drives in CVS Emacs
@ 2004-11-11 14:35 Mathias Dahl
2004-11-17 18:43 ` Mathias Dahl
0 siblings, 1 reply; 2+ messages in thread
From: Mathias Dahl @ 2004-11-11 14:35 UTC (permalink / raw)
(I posted this to the emacs for windows newsgroup first but
got no comments and I still *suspect* that this is a bug so
I'll try here too)
I have been using Emacs 21.3 for a long time on Windows NT4 and
Windows 2000 and often opened files using their UNC paths, like this:
Find file: //myserver/myshare/myfile.txt
Now I am using the CVS version of Emacs, and it still *works* but
veeery slowly. Navigating to the file is quick enough, but when I open
it there seems to be a long delay.
If I map the share to a letter, like this:
c:\> net use z: \\myserver\myshare\myfile.txt
and opens file from that mapped "drive", it is as snappy as it was
before.
I have tried starting emacs with --no-init-file, but the
same thing happens.
Anyone got any clue to why it work like this?
/Mathias
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: UNC paths vs mapped drives in CVS Emacs
2004-11-11 14:35 UNC paths vs mapped drives in CVS Emacs Mathias Dahl
@ 2004-11-17 18:43 ` Mathias Dahl
0 siblings, 0 replies; 2+ messages in thread
From: Mathias Dahl @ 2004-11-17 18:43 UTC (permalink / raw)
Mathias Dahl <brakjoller@gmail.com> writes:
> I have been using Emacs 21.3 for a long time on Windows NT4 and
> Windows 2000 and often opened files using their UNC paths, like this:
>
> Find file: //myserver/myshare/myfile.txt
>
> Now I am using the CVS version of Emacs, and it still *works* but
> veeery slowly. Navigating to the file is quick enough, but when I open
> it there seems to be a long delay.
>
> If I map the share to a letter, like this:
>
> c:\> net use z: \\myserver\myshare\myfile.txt
>
> and opens file from that mapped "drive", it is as snappy as it was
> before.
Just to help others that may have this problem I will post some
information I just found by searching the net:
* It seems the reason for the slowness is some extra checks that emacs
does regarding version control. I'm not sure about the exact cause
though.
* A workaround until it is fixed is to do this:
(setq vc-handled-backends '(RCS CVS SVN SCCS))
In my case, I just left CVS and SVN in there. If you do not use any
VC software I guess you can set it to null.
* If you want the full story, follow this link:
http://lists.gnu.org/archive/cgi-bin/namazu.cgi?query=Slow+access+to+files+using+UNC+path&submit=Search%21&idxname=emacs-devel&max=100&result=normal&sort=date%3Aearly
(sorry for the incredibly long URL, but using those query parameters
gives a good overview)
/Mathias
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