From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#48841: fido-mode is slower than ido-mode with similar settings Date: Sat, 5 Jun 2021 04:39:49 +0300 Message-ID: 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="11062"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 To: 48841@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jun 05 03:40:22 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 1lpLIU-0002h6-Gt for geb-bug-gnu-emacs@m.gmane-mx.org; 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helo=mail-wr1-x435.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action 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:208042 Archived-At: I'm comparing ido-mode with ido-ubiquitous-mode (for support for arbitrary completion tables), available at https://github.com/DarwinAwardWinner/ido-completing-read-plus with (setq ido-enable-flex-matching t), of course versus fido-mode with (setq icomplete-compute-delay 0) (setq icomplete-show-matches-on-no-input t) (setq icomplete-max-delay-chars 0) The values chosen for behavior maximally close to ido. Try something like: - Start a session with personal config and a number of loaded packages (so that there are a lot of functions defined in obarray) - Type 'C-h f' - Type 'a', then type 'b'. - Delete 'b', type it again, see how quickly you can make the completions update. With ido, the updates seem instant (probably due to some magic in ido-completing-read-plus); with fido, there is some lag. Not huge, but easy enough to notice.