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bug#29095: Bug: The '20a09de953f437109a098fa8c4d380663d921481' merge inc
From: |
Eli Zaretskii |
Subject: |
bug#29095: Bug: The '20a09de953f437109a098fa8c4d380663d921481' merge increased my Emacs configuration loading time from 9 s to 60 s |
Date: |
Wed, 01 Nov 2017 05:44:22 +0200 |
> From: Alexander Shukaev <emacs@Alexander.Shukaev.name>
> Date: Wed, 1 Nov 2017 01:44:50 +0100
>
> Decided to try pretest of 26.0.90 and immediately discovered that it is
> slower than, for example, 'e7f65187580342171dd9ad32e570c50c96badb13'
> which I used before. In particular, thanks to a couple of hours of
> bisecting, I found that the '20a09de953f437109a098fa8c4d380663d921481'
> merge increased my Emacs configuration loading time from 9 s to 60 s,
By "Emacs configuration loading time" you mean the time it takes Emacs
to start up when you type "emacs" at the shell prompt? Or do you mean
something else?
> which is unacceptable. I have no idea how this made it's way to the
> 'master' branch. Furthermore, other operations like navigation across
> windows or performing an incremental search are also noticeably slower,
> i.e. they stutter annoyingly
Is your build optimized or unoptimized? If the latter, perhaps your
previous build was optimized? The difference between them could be a
factor of 2.5 in speed.
> and from what I see is a result of extensive GC spam which did not
> occur in previous versions.
What do you mean by "extensive GC spam"?
Also, in what major mode(s) and what kind of files do you see this
performance degradation?
Thanks.