From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Wolfgang Jenkner Newsgroups: gmane.emacs.bugs Subject: bug#19393: 25.0.50; Emacs cannot determine coding system of ISO-8859 encoded files Date: Tue, 13 Jan 2015 18:12:54 +0100 Message-ID: <85k30q7gfd.fsf@iznogoud.viz> References: <87sigfpqmx.fsf@thinkpad-t440p.tsdh.org> <85oar3xwc1.fsf@iznogoud.viz> <871tnzs7y6.fsf@thinkpad-t440p.tsdh.org> <85mw6m4aqs.fsf@iznogoud.viz> <83zjamuvgf.fsf@gnu.org> <85egry464g.fsf@iznogoud.viz> <83y4q6us1v.fsf@gnu.org> <85bnn1pvr1.fsf@iznogoud.viz> <83388dudvt.fsf@gnu.org> <85vbl8nce4.fsf@iznogoud.viz> <83tx0suajy.fsf@gnu.org> <85vbl7qa3x.fsf@iznogoud.viz> <83ioh6srv8.fsf@gnu.org> <85h9vuai48.fsf@iznogoud.viz> <83ioga4pi6.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1421169257 25017 80.91.229.3 (13 Jan 2015 17:14:17 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 13 Jan 2015 17:14:17 +0000 (UTC) Cc: 19393@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jan 13 18:14:11 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YB52f-0006Th-Q2 for geb-bug-gnu-emacs@m.gmane.org; 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Tue, 13 Jan 2015 18:12:54 +0100 User-Agent: Gnus/5.130012 (Ma Gnus v0.12) Emacs/25.0.50 (berkeley-unix) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:98317 Archived-At: On Tue, Jan 13 2015, Eli Zaretskii wrote: >> From: Wolfgang Jenkner >> Cc: 19393@debbugs.gnu.org >> Date: Tue, 13 Jan 2015 15:06:01 +0100 >> >> However, if the file in question is compressed >> revert-buffer-with-coding-system still takes 4 minutes (the user time >> being dominated to 98% by memmove). > > Is the problem with compressed files due to the fact that the size is > unknown in advance? I only know that loading the compressed file from disk with the same coding system conversion as above takes just a few seconds, i.e., doing something like C-x RET c l a t i n - 1 C-x C-f m o v i e s . l i s t . g z is fast (enough). > If so, perhaps enlarging by more than was > requested (e.g., twice as large) will alleviate the problem? IIUC, this is your previous suggestion about improving insert-file-contents itself?