all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: martin rudalics <rudalics@gmx.at>
Cc: acm@muc.de, Eli Zaretskii <eliz@gnu.org>,
	rms@gnu.org, emacs-devel@gnu.org
Subject: Re: A proposal for the future of open-paren-in-column-0-is-defun-start.
Date: Tue, 07 Apr 2020 09:47:39 -0400	[thread overview]
Message-ID: <jwvpncj8l4m.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <dbce9069-1f97-9c5d-fb68-d4db48360d5d@gmx.at> (martin rudalics's message of "Tue, 7 Apr 2020 10:33:58 +0200")

>> Actually, we had a few detailed profiles posted which show many levels
>> below "somewhere in jit-lock", at least for CC Mode.
> When comparing -O0 with -O3 builds I noticed one additional difference
> with simple repetitions of 'scroll-up' in xdisp.c.  The optimized build
> spent 25% of the CPU time consumed collecting garbage, the debug build
> 42%.  Does an -O0 build produce more garbage or is it collecting slower?

I'd guess that it's just the fact that the GC spends almost all its time
manipulating Lisp_Object values, so it is more affected by inlining of
those low-level functions that extract the tag and things like that.


        Stefan




  reply	other threads:[~2020-04-07 13:47 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-05 13:47 A proposal for the future of open-paren-in-column-0-is-defun-start Alan Mackenzie
2020-04-05 14:33 ` Stefan Monnier
2020-04-05 15:23   ` Alan Mackenzie
2020-04-05 18:39     ` Stefan Monnier
2020-04-06  2:37   ` Richard Stallman
2020-04-06 15:40     ` Stefan Monnier
2020-04-06 16:04       ` Eli Zaretskii
2020-04-06 16:25         ` Stefan Monnier
2020-04-06 16:36           ` Eli Zaretskii
2020-04-06 17:49             ` Stefan Monnier
2020-04-06 18:16               ` Eli Zaretskii
2020-04-06 18:32               ` andres.ramirez
2020-04-07  8:33         ` martin rudalics
2020-04-07 13:47           ` Stefan Monnier [this message]
2020-04-07 14:06           ` Eli Zaretskii
2020-04-06 19:08 ` Dmitry Gutov
2020-04-06 21:42 ` Stefan Monnier
2020-04-06 21:58   ` Dmitry Gutov
2020-04-06 23:44     ` Stefan Monnier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwvpncj8l4m.fsf-monnier+emacs@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=acm@muc.de \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=rms@gnu.org \
    --cc=rudalics@gmx.at \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.