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From: Alan Mackenzie <acm@muc.de>
To: Stefan Kangas <stefankangas@gmail.com>
Cc: 66750@debbugs.gnu.org, Andrea Corallo <acorallo@gnu.org>,
	Stefan Monnier <monnier@iro.umontreal.ca>,
	acm@muc.de
Subject: bug#66750: Unhelpful text in C-h v for variables with a lambda form as value
Date: Sat, 28 Oct 2023 15:59:26 +0000	[thread overview]
Message-ID: <ZT0v3vjscJMM7K87@ACM> (raw)
In-Reply-To: <CADwFkmkb8hyFLF59f9nWhVXKtR9VE2O-YPg8eA_AoK+j6_vHNw@mail.gmail.com>

Hello, Stefan.

On Sat, Oct 28, 2023 at 08:04:00 -0700, Stefan Kangas wrote:
> Alan Mackenzie <acm@muc.de> writes:

> > Currently feature/named-lambdas is mostly working, not fully working.
> > Probably the most pressing of these deficiencies is that native compiled
> > lambda functions don't yet get their defining symbol set.

As I've said, this is now fixed.

> > There have been substantial amendments compared with the master branch,
> > and it has not been tested much by anybody but me.

> > Assuming it can be brought to a fully working state, there would be an
> > extra symbol in each function definition which would make Emacs
> > marginally bigger.

> Does it have any performance implications?

Yes, but very little.

If I scroll through xdisp.c, displaying all the time, in C Mode:
(i) master:                  18.850s, 18.767s, 18.747s.
(ii) feature/named-lambdas:  18.630s, 18.738s, 18.782s.

If I likewise scroll through osprey_reg_map_macro.h (a 4 MB .h file
specifying some hardware registers), in c-ts-mode:
(i) master:                  10.157s, 10.203s, 10.169s
(ii) feature/named-lambdas:  10.207s, 10.219s, 10.257s

..  Not a very scientific timing, not done from emacs -Q, but a fair
test.  It would seem any slowdown is less than 1%.

-- 
Alan Mackenzie (Nuremberg, Germany).





  reply	other threads:[~2023-10-28 15:59 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-25 17:09 bug#66750: Unhelpful text in C-h v for variables with a lambda form as value Alan Mackenzie
2023-10-25 20:53 ` Andrea Corallo
2023-10-27 11:35   ` Alan Mackenzie
2023-10-28  9:27     ` Alan Mackenzie
2023-10-28 15:04     ` Stefan Kangas
2023-10-28 15:59       ` Alan Mackenzie [this message]
2023-10-28 16:26         ` Eli Zaretskii
2023-10-28 16:57           ` Alan Mackenzie
2023-10-28 17:17         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-10-28 18:17           ` Alan Mackenzie
2023-10-28 18:38             ` Eli Zaretskii
2023-10-28 18:59               ` Alan Mackenzie
2023-10-28 19:13             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-10-28 19:59               ` Alan Mackenzie
2023-10-29  4:14                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-10-29 11:25                   ` Alan Mackenzie
2023-10-29 16:32                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-10-29 18:50                       ` Alan Mackenzie
2023-10-29 21:47                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-10-30  9:44                           ` Alan Mackenzie
2023-11-01 12:47                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-01 15:03                               ` Alan Mackenzie
2023-11-01 18:11                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-01 20:30                                   ` Alan Mackenzie
2023-11-01 22:46                                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-02  6:13                                       ` Eli Zaretskii
2023-11-02  9:37                                         ` Alan Mackenzie
2023-11-02 10:09                                           ` Eli Zaretskii
2023-11-02 11:52                                             ` Alan Mackenzie
2023-11-02 13:50                                               ` Eli Zaretskii
2023-11-02 15:55                                                 ` Alan Mackenzie
2023-11-02 16:50                                                   ` Eli Zaretskii
2023-11-02 17:12                                                     ` Andrea Corallo
2023-11-02 21:44                                                   ` Stefan Kangas
2023-11-02 22:24                                                     ` Alan Mackenzie
2023-11-03  3:20                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-03 19:46                                                         ` Alan Mackenzie
2023-11-03 22:18                                                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-04 15:31                                                             ` Alan Mackenzie
2023-11-26 12:32                                                             ` Alan Mackenzie
2023-11-27 17:23                                                               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-03-25 12:03                                                         ` Alan Mackenzie
2023-11-02 20:53               ` Stefan Kangas
2023-11-02 21:20                 ` bug#66750: help-split-fundoc (was: bug#66750: Unhelpful text in C-h v for variables with a lambda form as value) Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors

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