From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: rgm@gnu.org, emacs-devel@gnu.org
Subject: Re: emacs-26 eec71eb: Speed up replace-buffer-contents
Date: Tue, 3 Jul 2018 13:14:29 -0700 [thread overview]
Message-ID: <517756be-f05e-1fd1-afc9-f8b6d47252f2@cs.ucla.edu> (raw)
In-Reply-To: <837emcjezc.fsf@gnu.org>
Eli Zaretskii wrote:
> Profiling shows that 'diag' takes 32% of the CPU time, and
> buffer_chars_equal takes another 45%. So any significant gains will
> be in buffer_chars_equal, I think.
Yes, that was what my intuition was pointing at as well. Among other things, we
can fix the quit problem without having a rbc_quitcounter variable.
I typically measure effectiveness of performance tweaks when using the
'configure' default of CFLAGS='-g3 -O2', since that's how it's typically built
downstream. If this particular problem is all about CFLAGS=-O0 please let me
know, as I guess I can look at that too (but would rather not).
next prev parent reply other threads:[~2018-07-03 20:14 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180629135646.6054.66405@vcs0.savannah.gnu.org>
[not found] ` <20180629135648.5C95A2053B@vcs0.savannah.gnu.org>
2018-07-03 2:25 ` emacs-26 eec71eb: Speed up replace-buffer-contents Glenn Morris
2018-07-03 6:25 ` Paul Eggert
2018-07-03 19:28 ` Eli Zaretskii
2018-07-03 20:14 ` Paul Eggert [this message]
2018-07-04 2:31 ` Eli Zaretskii
2018-07-04 6:36 ` Paul Eggert
2018-07-04 15:09 ` Eli Zaretskii
2018-07-04 18:30 ` Paul Eggert
2018-07-04 18:40 ` Eli Zaretskii
2018-07-07 11:57 ` Eli Zaretskii
2018-07-07 18:22 ` Paul Eggert
2018-07-07 18:40 ` Eli Zaretskii
2018-07-04 16:55 ` Eli Zaretskii
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