From: Noam Postavsky <npostavs@users.sourceforge.net>
To: Alexander Shukaev <emacs@Alexander.Shukaev.name>
Cc: 29095@debbugs.gnu.org
Subject: bug#29095: Bug: The '20a09de953f437109a098fa8c4d380663d921481' merge increased my Emacs configuration loading time from 9 s to 60 s
Date: Sat, 04 Nov 2017 19:53:46 -0400 [thread overview]
Message-ID: <87y3nl7g8l.fsf@users.sourceforge.net> (raw)
In-Reply-To: <c50d043c-aebb-c406-5632-12047c088c58@Alexander.Shukaev.name> (Alexander Shukaev's message of "Sun, 5 Nov 2017 00:28:15 +0100")
Alexander Shukaev <emacs@Alexander.Shukaev.name> writes:
>> What confuses me though, is how a 100ms delay is adding ~50s to your
>> starup time?! Or are you just creating 500 frames on startup?
>
> Hah, of course not. So I took some additional time to investigate
> where this comes from and in turned out to be very simple:
>
> (setq-default minibuffer-auto-raise t)
>
> causes this. I think this needs to be addressed. Either by
> documenting this side effect or finding a better solution.
Ah, so if I understand correctly, because of the minibuffer-auto-raise
setting, every time a message is printed Emacs tries to make the frame
visible, and because of x-wait-for-event-timeout, it waits for 100ms
each time. So if you get around ~500 messages during startup, it would
take about 50 seconds, thus explaining the increase you observed?
Perhaps the thing to do is simply to disable x-wait-for-event-timeout if
we end up hitting the timeout. Under most window managers the frame
becomes visible much faster than 100ms anyway, as far as I know.
> I figured out why this GC issue was happening. It's a bug with
> `magit-filenotify' package, which I've already reported and found
> workaround for. So apart from my concerns about
> `minibuffer-auto-raise' and `x-wait-for-event-timeout', looks good so
> far.
Ah yes, I saw that. It looks like it's not actually a GC issue as such,
but an (asynchronous) infinite loop that generates a lot of garbage (and
hence work for the GC).
https://github.com/ruediger/magit-filenotify/issues/20
next prev parent reply other threads:[~2017-11-04 23:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-01 0:44 bug#29095: Bug: The '20a09de953f437109a098fa8c4d380663d921481' merge increased my Emacs configuration loading time from 9 s to 60 s Alexander Shukaev
2017-11-01 1:31 ` Noam Postavsky
2017-11-01 23:49 ` Alexander Shukaev
2017-11-02 0:21 ` Noam Postavsky
2017-11-04 23:28 ` Alexander Shukaev
2017-11-04 23:53 ` Noam Postavsky [this message]
2017-11-04 23:58 ` Alexander Shukaev
2017-11-05 10:53 ` martin rudalics
2017-11-07 9:10 ` Noam Postavsky
2017-11-07 12:57 ` Noam Postavsky
2017-11-08 7:13 ` martin rudalics
2017-11-08 13:42 ` Noam Postavsky
2017-11-09 7:28 ` martin rudalics
2017-11-09 13:20 ` Noam Postavsky
2017-11-09 18:12 ` martin rudalics
2017-11-09 22:09 ` Alexander Shukaev
2017-11-09 22:22 ` Alexander Shukaev
2017-11-10 0:53 ` Noam Postavsky
2019-04-23 2:52 ` Noam Postavsky
2017-11-12 10:09 ` martin rudalics
2017-11-08 7:13 ` martin rudalics
2017-11-01 3:44 ` Eli Zaretskii
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