From: Eli Zaretskii <eliz@gnu.org>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: wyuenho@gmail.com, emacs-devel@gnu.org
Subject: Re: How to measure frame rate in fps?
Date: Sun, 06 Jun 2021 15:36:58 +0300 [thread overview]
Message-ID: <838s3ni2z9.fsf@gnu.org> (raw)
In-Reply-To: <c789b428-e816-af69-3b69-97612e1d2d78@yandex.ru> (message from Dmitry Gutov on Sun, 6 Jun 2021 15:00:50 +0300)
> Cc: wyuenho@gmail.com, emacs-devel@gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Sun, 6 Jun 2021 15:00:50 +0300
>
> > Three out of 5 of the above mean Emacs spends a large proportion of
> > the time (35%) doing GC. I'm not sure I understand why should Emacs
> > perform GC while being idle: do you have some timers running, perhaps?
> > If this is "emacs -Q", what happens if you disable blink-cursor-mode
> > and global-eldoc-mode?
>
> No, I'm not measuring while idle. Like I said, those redisplays are in
> the middle of the "complex" scenario mentioned previously.
Then I don't see how this is relevant to the issue with the GTK tool
bar making "do-nothing" redisplays more expensive. The above is a
completely different scenario; depending on what exactly was Emacs
doing in this scenario, redrawing of the GTK tool bar could indeed
account for an insignificant percentage of the CPU time.
> Since the code path that calls (redisplay) in Company is only triggered
> when talking to an external process (or, more generally, when the
> backend does something that allows a timer to run), to test this I
> repeatedly exercise completion using an external service, talking to it
> via HTTP/JSON.
And what are you trying to investigate or establish with profiling
this scenario? Maybe I simply don't understand what you wanted to
demonstrate.
> >> 0,25% emacs emacs [.] json_to_lisp
> >
> > Any idea why this is here?
>
> ...so both JSON decoding and GC being among the hot spots are totally
> expected.
Sure.
next prev parent reply other threads:[~2021-06-06 12:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-31 13:03 How to measure frame rate in fps? Jimmy Yuen Ho Wong
2021-06-01 10:00 ` Arthur Miller
2021-06-01 11:43 ` Eli Zaretskii
2021-06-01 14:18 ` Dmitry Gutov
2021-06-01 14:43 ` Eli Zaretskii
2021-06-01 15:00 ` Dmitry Gutov
2021-06-01 15:35 ` Eli Zaretskii
2021-06-01 21:31 ` Dmitry Gutov
2021-06-02 2:29 ` Eli Zaretskii
2021-06-06 2:09 ` Dmitry Gutov
2021-06-06 6:11 ` Eli Zaretskii
2021-06-06 12:00 ` Dmitry Gutov
2021-06-06 12:36 ` Eli Zaretskii [this message]
2021-06-06 16:48 ` Dmitry Gutov
2021-06-06 17:19 ` Eli Zaretskii
2021-06-06 23:31 ` Dmitry Gutov
2021-06-07 12:33 ` Eli Zaretskii
2021-06-06 18:10 ` Stefan Monnier
2021-06-06 23:35 ` Dmitry Gutov
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