From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.bugs 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 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="21851"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 66750@debbugs.gnu.org, Andrea Corallo , Stefan Monnier , acm@muc.de To: Stefan Kangas Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Oct 28 18:01:25 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qwlka-0005Uo-Ir for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 28 Oct 2023 18:01:24 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qwljx-0006m1-0N; Sat, 28 Oct 2023 12:00:46 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qwljl-0006d5-OM for bug-gnu-emacs@gnu.org; Sat, 28 Oct 2023 12:00:35 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qwlji-0001Ve-Ad for bug-gnu-emacs@gnu.org; Sat, 28 Oct 2023 12:00:33 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qwlkE-0007LD-2R for bug-gnu-emacs@gnu.org; Sat, 28 Oct 2023 12:01:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Alan Mackenzie Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 28 Oct 2023 16:01:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 66750 X-GNU-PR-Package: emacs Original-Received: via spool by 66750-submit@debbugs.gnu.org id=B66750.169850880828138 (code B ref 66750); Sat, 28 Oct 2023 16:01:02 +0000 Original-Received: (at 66750) by debbugs.gnu.org; 28 Oct 2023 16:00:08 +0000 Original-Received: from localhost ([127.0.0.1]:39410 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qwljM-0007Jm-3W for submit@debbugs.gnu.org; Sat, 28 Oct 2023 12:00:08 -0400 Original-Received: from mail.muc.de ([193.149.48.3]:54798) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qwljJ-0007Hb-9M for 66750@debbugs.gnu.org; Sat, 28 Oct 2023 12:00:06 -0400 Original-Received: (qmail 46475 invoked by uid 3782); 28 Oct 2023 17:59:27 +0200 Original-Received: from acm.muc.de (p4fe15319.dip0.t-ipconnect.de [79.225.83.25]) (using STARTTLS) by colin.muc.de (tmda-ofmipd) with ESMTP; Sat, 28 Oct 2023 17:59:26 +0200 Original-Received: (qmail 19405 invoked by uid 1000); 28 Oct 2023 15:59:26 -0000 Content-Disposition: inline In-Reply-To: X-Submission-Agent: TMDA/1.3.x (Ph3nix) X-Primary-Address: acm@muc.de X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:273446 Archived-At: Hello, Stefan. On Sat, Oct 28, 2023 at 08:04:00 -0700, Stefan Kangas wrote: > Alan Mackenzie 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).