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Re: multi-threaded Emacs
From: |
Stefan Monnier |
Subject: |
Re: multi-threaded Emacs |
Date: |
Sun, 30 Nov 2008 16:46:35 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) |
> I don't think that thread-local data has the same meaning as
> buffer-local, frame-local or terminal-local.
Indeed. But the implementation may use the same code (to a large
extent at least).
> Do you see any situation that there is need to store a value on a
> specific thread?
let-binding, of course. It's probably the only one that matters
(besides the internal ones like current_buffer).
>> I'm not sure what you mean by "a global lock". The question is not only
>> how many locks, but what they protect. My proposal further down to
>> start with "only one thread active at a time" is what I'd call "a global
>> lock".
> If we use a lock (or locks) to protect shared data still threads can be
> executed in parallel while they working on thread local data.
That basically means adding lock&unlock around `symbol-value' and
pretty much every primitive. I expect this will take a significant
amount of work, will lead to a significant performance hit, and will not
expose much parallelism, if any.
Stefan
- multi-threaded Emacs, Giuseppe Scrivano, 2008/11/29
- Re: multi-threaded Emacs, Stefan Monnier, 2008/11/29
- Re: multi-threaded Emacs, Giuseppe Scrivano, 2008/11/29
- Re: multi-threaded Emacs, Stefan Monnier, 2008/11/29
- Re: multi-threaded Emacs, Giuseppe Scrivano, 2008/11/30
- Re: multi-threaded Emacs,
Stefan Monnier <=
- Re: multi-threaded Emacs, Giuseppe Scrivano, 2008/11/30
- Re: multi-threaded Emacs, Stefan Monnier, 2008/11/30
- Re: multi-threaded Emacs, Giuseppe Scrivano, 2008/11/30
- Re: multi-threaded Emacs, Stefan Monnier, 2008/11/30
Re: multi-threaded Emacs, Tom Tromey, 2008/11/29
Re: multi-threaded Emacs, Richard M Stallman, 2008/11/30