From: Dmitry Gutov <dgutov@yandex.ru>
To: Konstantin Kharlamov <hi-angel@yandex.ru>,
ndame <ndame@protonmail.com>,
Emacs developers <emacs-devel@gnu.org>
Subject: Re: What is the most useful potential feature which Emacs lacks? A: Autocompletion
Date: Wed, 3 Jun 2020 17:21:44 +0300 [thread overview]
Message-ID: <701b151d-2133-7916-3169-5d0f29cf3bb8@yandex.ru> (raw)
In-Reply-To: <b97328a2366552db5421d568c07ea6a1c4a6e6fc.camel@yandex.ru>
On 03.06.2020 16:59, Konstantin Kharlamov wrote:
> I am not sure why you say it seems wasteful. Do you mean perhaps, as
> opposed to setting, say, 100ms?
Or 50ms, maybe.
Wasteful of CPU cycles and laptop battery, I'd say. Of course, the exact
impact depends on the size of your project.
> 100ms I think is the top limit this
> timeout should be set.
The defaults are not set in stone, we can discuss changing them on the
company issue tracker. But it's a balancing act. Set the value too small
-- and the result is more likely to annoy people who don't rely on the
popup as much.
> I just tested how quickly I can type a string
> "prog". I fired up `libinput debug-events` and tried to type
> "prog". The letter "g" says "+0.256s", i.e. it took 256ms. This means
> even if I set to 100ms, there's high chance I won't get any
> autocompletion.
Should I take this to mean the completion request itself took 156ms to
finish?
>> To be 100% sure, you should try it yourself (I don't do C/C++).
>> Maybe
>> someone else here can testify, though.
>
> Thank you! Indeed, I confirm this does seem to work with an async
> backend. I tested it as follows:
>
> 1. Opened a test.cpp file, enabled company-irony, checked that
> completion works.
> 2. I set `(setq company-idle-delay 0)`
> 3. I paused the irony-server process with `kill -SIGSTOP $(pidof
> irony-server)`
> 4. I tried typing a gibberish to see if I get any delay in rendering a
> text.
>
> I don't see any lags, so I assume using an async backend with the
> timeout set to 0 should work fine.
Indeed, that's what asynchronous means. But the quality of the user
experience also depends on how quickly the backing server can handle
those requests.
> This is great news! I wonder if
> company mode should default to zero or so timeout, and print a warning
> if somebody tries to connect a non-async backend?
The majority of backends are synchronous. And the "standard" completion
API for Emacs (which we want to integrate with) still only supports the
synchronous convention.
next prev parent reply other threads:[~2020-06-03 14:21 UTC|newest]
Thread overview: 157+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 20:09 What is the most useful potential feature which Emacs lacks? ndame
2020-05-12 6:57 ` Arthur Miller
2020-05-12 7:13 ` ndame
2020-05-12 12:54 ` Stefan Kangas
2020-05-12 13:07 ` ndame
2020-05-12 14:56 ` Arthur Miller
2020-05-13 0:39 ` HaiJun Zhang
2020-05-13 1:34 ` Eduardo Ochs
2020-05-13 1:50 ` Eduardo Ochs
2020-05-12 10:00 ` H. Dieter Wilhelm
2020-05-12 11:10 ` Michael Albinus
2020-05-13 3:55 ` Richard Stallman
2020-05-13 10:32 ` Michael Albinus
2020-05-14 5:11 ` Richard Stallman
2020-05-14 10:34 ` Michael Albinus
2020-05-15 3:25 ` Richard Stallman
2020-05-15 8:15 ` Michael Albinus
2020-05-16 4:18 ` Richard Stallman
2020-05-16 22:07 ` H. Dieter Wilhelm
2020-05-18 3:45 ` Richard Stallman
2020-05-18 8:05 ` Tramp and crypted files (was: What is the most useful potential feature which Emacs lacks?) Michael Albinus
2020-05-19 4:01 ` Richard Stallman
2020-05-19 14:38 ` Tramp and crypted files Michael Albinus
2020-05-20 4:00 ` Richard Stallman
2020-05-19 8:51 ` Deus Max
2020-05-19 14:48 ` Michael Albinus
2020-05-20 8:27 ` Deus Max
2020-05-20 8:49 ` Michael Albinus
2020-05-20 17:49 ` Deus Max
2020-05-20 19:09 ` Michael Albinus
2020-05-25 18:48 ` Michael Albinus
2020-05-26 4:13 ` Richard Stallman
2020-05-26 7:13 ` Michael Albinus
2020-05-27 3:09 ` Richard Stallman
2020-05-28 13:05 ` Deus Max
2020-05-29 9:16 ` Michael Albinus
2020-05-29 16:33 ` Deus Max
2020-06-07 15:08 ` Michael Albinus
2020-06-13 12:06 ` Deus Max
2020-06-13 13:15 ` Michael Albinus
2020-05-29 18:22 ` Deus Max
2020-05-17 8:28 ` What is the most useful potential feature which Emacs lacks? Michael Albinus
2020-05-12 11:57 ` Eric S Fraga
2020-05-12 15:34 ` Michael Albinus
2020-05-12 16:33 ` Eric S Fraga
2020-05-12 17:39 ` Tramp nextcloud (was: What is the most useful potential feature which Emacs lacks?) Michael Albinus
2020-05-12 18:12 ` Tramp nextcloud H. Dieter Wilhelm
2020-05-13 8:59 ` Eric S Fraga
2020-05-13 9:33 ` Tramp nextcloud (SOLVED) Eric S Fraga
2020-05-13 10:45 ` Michael Albinus
2020-05-13 11:10 ` Eric S Fraga
2020-05-12 15:04 ` What is the most useful potential feature which Emacs lacks? Arthur Miller
2020-05-12 16:00 ` Drew Adams
2020-05-12 12:30 ` Helmut Eller
2020-05-13 1:22 ` Jose A. Ortega Ruiz
[not found] ` <5AYrQ3kvagEiLsXcUuMZvkDj1gBHT4YnJyVCX6RsvMkayS1ZbGWk18lJOyo_m8XanhsUygUtEqZw8OOOQOlwkg==@protonmail.internalid>
2020-05-13 2:45 ` Stefan Monnier
2020-05-13 3:58 ` jao
2020-05-13 23:12 ` João Távora
2020-05-14 0:04 ` Stefan Kangas
2020-05-14 10:08 ` Helmut Eller
2020-05-14 10:17 ` tomas
2020-05-14 10:34 ` Robert Pluim
2020-05-14 10:40 ` tomas
2020-05-15 3:25 ` Richard Stallman
2020-05-15 3:39 ` Dmitry Gutov
2020-05-15 3:25 ` Richard Stallman
2020-05-15 3:51 ` Dmitry Gutov
2020-05-16 4:18 ` Richard Stallman
2020-05-16 9:29 ` Dmitry Gutov
2020-05-17 2:55 ` Richard Stallman
2020-05-15 3:17 ` Richard Stallman
2020-05-15 6:56 ` Eli Zaretskii
2020-05-16 4:18 ` Richard Stallman
2020-05-16 7:13 ` Eli Zaretskii
2020-05-16 12:56 ` Stefan Monnier
2020-05-17 2:56 ` Richard Stallman
2020-05-17 7:22 ` Andreas Schwab
2020-05-18 3:42 ` Richard Stallman
2020-05-18 14:29 ` Eli Zaretskii
2020-05-19 3:56 ` shr.el rename? Richard Stallman
2020-05-19 5:50 ` Drew Adams
2020-05-19 12:41 ` Lars Ingebrigtsen
2020-05-19 15:04 ` Stefan Monnier
2020-05-19 16:47 ` T.V Raman
2020-05-20 3:59 ` Richard Stallman
2020-05-20 4:02 ` Richard Stallman
2020-05-18 15:20 ` What is the most useful potential feature which Emacs lacks? Filipp Gunbin
2020-05-18 15:26 ` Eli Zaretskii
2020-05-15 9:10 ` Robert Pluim
2020-05-15 10:21 ` Eli Zaretskii
2020-05-15 11:07 ` Robert Pluim
2020-05-15 11:28 ` Eli Zaretskii
2020-05-15 11:49 ` Robert Pluim
2020-05-15 11:58 ` Eli Zaretskii
2020-05-15 12:14 ` Robert Pluim
2020-05-15 12:56 ` Eli Zaretskii
2020-05-15 15:22 ` Stefan Monnier
2020-05-15 15:28 ` Robert Pluim
2020-05-16 4:18 ` Richard Stallman
2020-05-16 4:17 ` Richard Stallman
2020-05-16 6:50 ` Andreas Schwab
2020-05-16 8:24 ` Yuri Khan
2020-05-17 2:56 ` Richard Stallman
2020-05-14 11:57 ` Dmitry Gutov
2020-05-12 12:44 ` Christopher Lemmer Webber
2020-05-13 16:36 ` Karl Fogel
2020-05-14 3:01 ` Christopher Lemmer Webber
2020-05-14 4:08 ` Karl Fogel
2020-05-14 10:01 ` Robert Pluim
2020-05-14 16:35 ` Christopher Lemmer Webber
2020-05-17 1:31 ` Dmitry Gutov
2020-05-18 3:43 ` Richard Stallman
2020-05-15 3:16 ` Richard Stallman
2020-05-28 4:00 ` Karl Fogel
2020-05-28 13:18 ` Stefan Monnier
2020-05-28 17:19 ` Karl Fogel
2020-05-28 18:05 ` Drew Adams
2020-05-28 18:45 ` Dmitry Gutov
2020-05-28 20:52 ` Alan Third
2020-05-28 21:02 ` Stefan Monnier
2020-05-28 21:10 ` Alan Third
2020-05-28 21:27 ` andres.ramirez
2020-05-28 21:54 ` Stefan Monnier
2020-05-29 13:24 ` Arthur Miller
2020-05-28 21:14 ` Joost Kremers
2020-05-29 13:24 ` Arthur Miller
2020-05-29 1:24 ` Karl Fogel
2020-05-29 3:36 ` Drew Adams
2020-05-29 3:06 ` Richard Stallman
2020-05-29 3:41 ` Drew Adams
2020-05-29 13:19 ` Arthur Miller
2020-05-30 5:23 ` Thibaut Verron
2020-05-29 13:11 ` Arthur Miller
2020-05-13 17:48 ` ndame
2020-05-14 1:15 ` Arthur Miller
2020-05-14 4:10 ` ndame
2020-05-14 4:28 ` Arthur Miller
2020-05-15 10:38 ` Eli Zaretskii
2020-05-17 5:37 ` ndame
2020-05-17 12:42 ` Stefan Kangas
2020-05-17 13:18 ` Arthur Miller
2020-05-19 3:47 ` Richard Stallman
2020-05-17 22:03 ` chad
2020-05-13 21:05 ` Vasilij Schneidermann
2020-05-14 14:35 ` Björn Lindqvist
2020-06-03 11:39 ` What is the most useful potential feature which Emacs lacks? A: Autocompletion Konstantin Kharlamov
2020-06-03 12:36 ` Dmitry Gutov
2020-06-03 12:50 ` Konstantin Kharlamov
2020-06-03 13:10 ` Dmitry Gutov
2020-06-03 13:59 ` Konstantin Kharlamov
2020-06-03 14:21 ` Dmitry Gutov [this message]
2020-06-03 14:40 ` Konstantin Kharlamov
2020-06-03 18:49 ` Dmitry Gutov
2020-06-03 14:49 ` Drew Adams
2020-06-03 20:15 ` Konstantin Kharlamov
2020-06-03 20:36 ` Drew Adams
2020-06-03 20:49 ` Drew Adams
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