From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jim Porter Newsgroups: gmane.emacs.bugs Subject: bug#71454: 30.0.50; Performance issues with font selection Date: Mon, 10 Jun 2024 09:31:53 -0700 Message-ID: <1927ec80-ee2f-1b28-5e43-05f7bd57a21a@gmail.com> References: <87v82h6a33.fsf@jeremybryant.net> <867cex9fpb.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24791"; mail-complaints-to="usenet@ciao.gmane.io" Cc: jb@jeremybryant.net, 71454@debbugs.gnu.org To: Eli Zaretskii , Kai Ma Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jun 11 19:38:55 2024 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 1sH5SQ-0006HS-AA for geb-bug-gnu-emacs@m.gmane-mx.org; 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[23.240.98.37]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-1f6d872bd4bsm64211755ad.208.2024.06.10.09.31.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 10 Jun 2024 09:31:51 -0700 (PDT) Content-Language: en-US In-Reply-To: <867cex9fpb.fsf@gnu.org> 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:287104 Archived-At: On 6/10/2024 4:53 AM, Eli Zaretskii wrote: > My crystal ball says that the expensive part here is character > composition. The above characters belong to scripts that require > extensive composition rules, take a look at indian.el and its complex > regexps. That would show up in a profile, right? Here's what I get when I start "emacs -Q", start profiling, and then call "C-h v comint-password-prompt-regexp RET". It's not the most interesting profile since most of it is probably in C code. I do see 'auto-compose-chars' in there, however it's got ~0% of the samples from the profiler. I haven't had time to dig into this in any great depth, so this profile may of course turn out to be entirely useless... 910 98% - command-execute 907 98% - funcall-interactively 907 98% - describe-variable 907 98% - help--window-setup 905 98% - help-window-setup 2 0% - help-window-display-message 2 0% auto-compose-chars 1 0% - # 1 0% - cl-prin1-to-string 1 0% - byte-code 1 0% - cl-generic-define-method 1 0% - cl--generic-make-function 1 0% - cl--generic-make-next-function 1 0% - cl--generic-get-dispatcher 1 0% - byte-compile 1 0% - # 1 0% byte-compile-top-level 1 0% help-make-xrefs 3 0% - byte-code 2 0% - read-extended-command 2 0% - read-extended-command-1 2 0% completing-read-default 1 0% - variable-at-point 1 0% - find-tag-default 1 0% find-tag-default-bounds 10 1% - ... 9 0% Automatic GC 1 0% - completion--in-region 1 0% - # 1 0% - apply 1 0% - # 1 0% - completion--in-region-1 1 0% - completion--do-completion 1 0% - completion-try-completion 1 0% - completion--nth-completion 1 0% - completion--some 1 0% - # 1 0% - completion-basic-try-completion 1 0% - completion-boundaries 1 0% - help--symbol-completion-table 1 0% - help--load-prefixes 1 0% - load 1 0% byte-code