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From: Emanuel Berg <moasen@zoho.com>
To: help-gnu-emacs@gnu.org
Subject: Re: try-this-for ?
Date: Thu, 18 Jan 2018 13:59:17 +0100	[thread overview]
Message-ID: <86vafz4922.fsf@zoho.com> (raw)
In-Reply-To: mailman.7544.1516279427.27995.help-gnu-emacs@gnu.org

tomas wrote:

>> True concurrency isn't possible even for
>> multicore architectures IIUC.
>
> To a certain extent yes: the processors/cores
> have to cooperate to access common resources
> (e.g. memory), but as long as they are
> operating e.g. from local cache they do run
> in parallel.

Yes, but I meant with respect to Emacs, can one
have, for example

    (let*((value-one (compute it))    ; on CPU1
          (value-two (compute it)) )) ; on CPU2 

execute in parallel?

> central event loop

Is this the KERNEL?

> to "keep running", you have to explicitly
> (that's the "explicit" part in what I labeled
> as "explicitly cooperative") give a chance to
> this input queue to run from time to time.
> Perhaps (sit-for 0) is your friend (it would
> trigger a redisplay), perhaps something else

The problem with yielding is it won't work to
interrupt something that has put Emacs into
a hanged state...

-- 
underground experts united
http://user.it.uu.se/~embe8573


  parent reply	other threads:[~2018-01-18 12:59 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-17 21:04 try-this-for ? Emanuel Berg
2018-01-17 23:50 ` John Mastro
2018-01-18  2:08 ` Bob Newell
     [not found] ` <mailman.7535.1516241346.27995.help-gnu-emacs@gnu.org>
2018-01-18  2:52   ` Emanuel Berg
     [not found] ` <mailman.7534.1516233062.27995.help-gnu-emacs@gnu.org>
2018-01-18  2:56   ` Emanuel Berg
2018-01-18  9:27     ` tomas
     [not found]     ` <mailman.7540.1516267658.27995.help-gnu-emacs@gnu.org>
2018-01-18 12:00       ` Emanuel Berg
2018-01-18 12:03         ` Emanuel Berg
2018-01-18 12:11           ` Emanuel Berg
2018-01-18 12:43         ` tomas
2018-01-18 15:14           ` Eli Zaretskii
2018-01-18 15:23             ` tomas
     [not found]         ` <mailman.7544.1516279427.27995.help-gnu-emacs@gnu.org>
2018-01-18 12:59           ` Emanuel Berg [this message]
2018-01-18 13:16             ` tomas
     [not found]             ` <mailman.7546.1516281409.27995.help-gnu-emacs@gnu.org>
2018-01-18 22:44               ` Emanuel Berg
2018-01-19  8:38                 ` tomas
     [not found]                 ` <mailman.7613.1516351115.27995.help-gnu-emacs@gnu.org>
2018-01-19  8:55                   ` Emanuel Berg
2018-01-19  9:25                     ` tomas
     [not found]                     ` <mailman.7614.1516353949.27995.help-gnu-emacs@gnu.org>
2018-01-19 10:47                       ` Emanuel Berg
2018-01-19 11:22                         ` tomas

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