From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "Sheng Yang" Newsgroups: gmane.emacs.bugs Subject: bug#45379: 28.0.50; Degraded Performance of describe-buffer-bindings Date: Fri, 08 Jan 2021 10:47:47 -0600 Message-ID: <02f717c6-dc96-4ba0-9117-2ef079ac556f@www.fastmail.com> References: <87a6u5m566.fsf@gmail.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=68704380d348437199d88f5a9068e7db Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28466"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Cyrus-JMAP/3.3.1-61-gb52c239-fm-20201210.001-gb52c2396 Cc: Stephen Berman , Stefan Kangas , Stefan Monnier , 45379@debbugs.gnu.org To: "Juri Linkov" Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jan 08 18:02:50 2021 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 1kxvA1-0007G1-0d for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 8 Jan 2021 11:48:06 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface 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" Xref: news.gmane.io gmane.emacs.bugs:197525 Archived-At: --68704380d348437199d88f5a9068e7db Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Juri, I recently came across a regression of performance in Emacs for describe= bindings, which I have reported as bug#45379. After bisection, the offe= nding seems to be a commit a649034336 you pushed in November 2020, to fi= x bug#5423. Since I have received no reply after bug#45379 was reported = (more than 2 weeks), I guess it's better to contact you and cc every par= ticipants of bug#5423. I am including the description of the bug report = here for your convenience. > `describe-buffer-bindings` has become significantly slower since the following commit a649034336 * bad Don't show key ranges if shadowed by different commands= This also makes `describe-bindings` and anything depending on it hardly usable. For me, it takes about 2 seconds on vanilla Emacs in an org-mode= buffer, and a few minutes on my Emacs configuration (was almost instant before the offending commit). >=20 Sheng Yang(=E6=9D=A8=E5=9C=A3), PhD candidate Computer Science Department University of Maryland, College Park E-mail: styang@fastmail.com E-mail (old but still used): yangsheng6810@gmail.com --68704380d348437199d88f5a9068e7db Content-Type: text/html;charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Juri,

I recently came across a regression of performanc= e in Emacs for describe bindings, which I have reported as bug#45379. Af= ter bisection, the offending seems to be a commit a649034336 you pushed = in November 2020, to fix bug#5423. Since I have received no reply after = bug#45379 was reported (more than 2 weeks), I guess it's better to conta= ct you and cc every participants of bug#5423. I am including the descrip= tion of the bug report here for your convenience.

`describe-buffer-bind=
ings` has become significantly slower since the
following commit

a649034336 * bad Don't show key ranges if shadowed by different commands=


This also makes `describe-bindings` and anything depending on it hardly
usable. For me, it takes about 2 seconds on vanilla Emacs in an org-mode=

buffer, and a few minutes on my Emacs configuration (was almost instant
before the offending commit).

=
Sheng Yang(=E6= =9D=A8=E5=9C=A3), PhD candidate
Comput= er Science Department
University of Ma= ryland, College Park
E-mail: styang@fastmail.com
E-mail (old but still used): yangsheng6810@gmail.com


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