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Re: vc-state-heuristic is gone
From: |
David Kastrup |
Subject: |
Re: vc-state-heuristic is gone |
Date: |
Mon, 24 Nov 2014 10:02:59 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
"Eric S. Raymond" <address@hidden> writes:
> David Kastrup <address@hidden>:
>> > Affected back ends: SCCS, RCS, CVS, SVN, Bazaar. I've already tested
>> > with RCS and any change in preformance is now so small that a human is
>> > not capable of registering it.
>>
>> For local files, presumably. Both NFS and Tramp exist and are in use,
>> however, so the "no cache" philosophy should likely not extend to
>> operations which can be triggered repeatedly during keystrokes that do
>> not explicitly invoke VC-based operations.
>
> I hope I am parsing your last sentence correctly. You do not appear
> to be suggesting anything about how VC should work, but making a general
> observation about *other* modes that have local caching.
Not at all. I _am_ suggesting problems with VC operation that are
likely to occur with a "no caching needed anywhere" strategy you are
proposing. Your statements about the speed of current
computers/computing are only valid for locally edited files. Emacs can
edit a lot more than just local files, including version controlled
files on a remote system.
> The next thing I'm going to look at is unifying the status-querying
> functions.
If I get a VC call across an ssh link for every keystroke I make in some
Tramp-edited buffer because the modeline wants to display the non-cached
current branch I am on, this is not going to lead to happy editing.
--
David Kastrup
- vc-state-heuristic is gone, Eric S. Raymond, 2014/11/23
- Re: vc-state-heuristic is gone, David Kastrup, 2014/11/24
- Re: vc-state-heuristic is gone, Eric S. Raymond, 2014/11/24
- Re: vc-state-heuristic is gone,
David Kastrup <=
- Re: vc-state-heuristic is gone, Eric S. Raymond, 2014/11/24
- Re: vc-state-heuristic is gone, David Kastrup, 2014/11/24
- Re: vc-state-heuristic is gone, Eric S. Raymond, 2014/11/24
- Re: vc-state-heuristic is gone, Michael Albinus, 2014/11/24
- Testing the new VC code, Eric S. Raymond, 2014/11/24
- Re: Testing the new VC code, Steinar Bang, 2014/11/24
- Re: Testing the new VC code, Eric S. Raymond, 2014/11/24
- Re: Testing the new VC code, Yuri Khan, 2014/11/24
- Re: Testing the new VC code, Eric S. Raymond, 2014/11/24
- Re: Testing the new VC code, Stefan Monnier, 2014/11/24