Date: Tue, 10 Nov 2015 11:05:55 +0100 (CET) From: =?ISO-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no> To: "Eugene M. Zheganin" <emz@norma.perm.ru> Cc: FreeBSD <freebsd-stable@freebsd.org> Subject: Re: zfs, mc, mcview and files opening Message-ID: <alpine.BSF.2.20.1511101102340.22820@mail.fig.ol.no> In-Reply-To: <5641BFC8.9050207@norma.perm.ru> References: <5641BFC8.9050207@norma.perm.ru>
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On Tue, 10 Nov 2015 14:58+0500, Eugene M. Zheganin wrote: > my midnight commander is terribly slow at vieweing files with mcview. [snip] > Can some workaround be used ? I blame file(1), it's hopelessly slow. mcview uses file(1) to deduce if it should just display the damn file or run the file through some filter. Maybe an option in mc/mcview to disable the use of file(1) is an acceptable compromise. OTOH, I could be wrong. -- +-------------------------------+------------------------------------+ | Vennlig hilsen, | Best regards, | | Trond Endrestøl, | Trond Endrestøl, | | IT-ansvarlig, | System administrator, | | Fagskolen Innlandet, | Gjøvik Technical College, Norway, | | tlf. mob. 952 62 567, | Cellular...: +47 952 62 567, | | sentralbord 61 14 54 00. | Switchboard: +47 61 14 54 00. | +-------------------------------+------------------------------------+ From owner-freebsd-stable@freebsd.org Tue Nov 10 10:29:12 2015 Return-Path: <owner-freebsd-stable@freebsd.org> Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 709CFA2B4E4 for <freebsd-stable@mailman.ysv.freebsd.org>; Tue, 10 Nov 2015 10:29:12 +0000 (UTC) (envelope-from trond@fagskolen.gjovik.no) Received: from smtp.fagskolen.gjovik.no (smtp.fagskolen.gjovik.no [IPv6:2001:700:1100:1:200:ff:fe00:b]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.fagskolen.gjovik.no", Issuer "Fagskolen i Gj??vik" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id DC5771A9F for <freebsd-stable@freebsd.org>; Tue, 10 Nov 2015 10:29:11 +0000 (UTC) (envelope-from trond@fagskolen.gjovik.no) Received: from mail.fig.ol.no (localhost [127.0.0.1]) by mail.fig.ol.no (8.15.2/8.15.2) with ESMTPS id tAAAT6iE069417 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 10 Nov 2015 11:29:06 +0100 (CET) (envelope-from trond@fagskolen.gjovik.no) Received: from localhost (trond@localhost) by mail.fig.ol.no (8.15.2/8.15.2/Submit) with ESMTP id tAAAT6lw069414; Tue, 10 Nov 2015 11:29:06 +0100 (CET) (envelope-from trond@fagskolen.gjovik.no) X-Authentication-Warning: mail.fig.ol.no: trond owned process doing -bs Date: Tue, 10 Nov 2015 11:29:06 +0100 (CET) From: =?ISO-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no> Sender: Trond.Endrestol@fagskolen.gjovik.no To: "Eugene M. Zheganin" <emz@norma.perm.ru> cc: FreeBSD <freebsd-stable@freebsd.org> Subject: Re: zfs, mc, mcview and files opening In-Reply-To: <alpine.BSF.2.20.1511101102340.22820@mail.fig.ol.no> Message-ID: <alpine.BSF.2.20.1511101116480.22820@mail.fig.ol.no> References: <5641BFC8.9050207@norma.perm.ru> <alpine.BSF.2.20.1511101102340.22820@mail.fig.ol.no> User-Agent: Alpine 2.20 (BSF 67 2015-01-07) Organization: Fagskolen Innlandet OpenPGP: url=http://fig.ol.no/~trond/trond.key MIME-Version: 1.0 X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED, AWL autolearn=ham autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail.fig.ol.no Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-stable>, <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>; List-Post: <mailto:freebsd-stable@freebsd.org> List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>, <mailto:freebsd-stable-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 10 Nov 2015 10:29:12 -0000 On Tue, 10 Nov 2015 11:05+0100, Trond Endrestøl wrote: > On Tue, 10 Nov 2015 14:58+0500, Eugene M. Zheganin wrote: > > > my midnight commander is terribly slow at vieweing files with mcview. > > [snip] > > > Can some workaround be used ? > > I blame file(1), it's hopelessly slow. mcview uses file(1) to deduce > if it should just display the damn file or run the file through some > filter. Maybe an option in mc/mcview to disable the use of file(1) is > an acceptable compromise. A workaround is to navigate to the file you wish to view. Hit M-! or ESC ! to activate the filter command. Hit the Home key, type in c a t followed by a space and hit enter. -- +-------------------------------+------------------------------------+ | Vennlig hilsen, | Best regards, | | Trond Endrestøl, | Trond Endrestøl, | | IT-ansvarlig, | System administrator, | | Fagskolen Innlandet, | Gjøvik Technical College, Norway, | | tlf. mob. 952 62 567, | Cellular...: +47 952 62 567, | | sentralbord 61 14 54 00. | Switchboard: +47 61 14 54 00. | +-------------------------------+------------------------------------+ From owner-freebsd-stable@freebsd.org Tue Nov 10 11:54:54 2015 Return-Path: <owner-freebsd-stable@freebsd.org> Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1276EA2B77C for <freebsd-stable@mailman.ysv.freebsd.org>; Tue, 10 Nov 2015 11:54:54 +0000 (UTC) (envelope-from emz@norma.perm.ru) Received: from elf.hq.norma.perm.ru (unknown [IPv6:2a00:7540:1::5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.norma.perm.ru", Issuer "Vivat-Trade UNIX Root CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 7A1E61236 for <freebsd-stable@freebsd.org>; Tue, 10 Nov 2015 11:54:53 +0000 (UTC) (envelope-from emz@norma.perm.ru) Received: from bsdrookie.norma.com. (pc233031.norma.com [IPv6:fd00::7fa] (may be forged)) by elf.hq.norma.perm.ru (8.14.9/8.14.9) with ESMTP id tAABsj8r029238 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for <freebsd-stable@freebsd.org>; Tue, 10 Nov 2015 16:54:46 +0500 (YEKT) (envelope-from emz@norma.perm.ru) Subject: Re: zfs, mc, mcview and files opening To: freebsd-stable@freebsd.org References: <5641BFC8.9050207@norma.perm.ru> <alpine.BSF.2.20.1511101102340.22820@mail.fig.ol.no> From: "Eugene M. Zheganin" <emz@norma.perm.ru> Message-ID: <5641DB05.7050209@norma.perm.ru> Date: Tue, 10 Nov 2015 16:54:45 +0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <alpine.BSF.2.20.1511101102340.22820@mail.fig.ol.no> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (elf.hq.norma.perm.ru [IPv6:fd00::30a]); Tue, 10 Nov 2015 16:54:46 +0500 (YEKT) X-Spam-Status: No hits=-100.2 bayes=0.0000 testhits AWL=0.214,BAYES_00=-1.9, RDNS_NONE=0.793,SPF_SOFTFAIL=0.665,USER_IN_WHITELIST=-100 autolearn=no autolearn_force=no version=3.4.0 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on elf.hq.norma.perm.ru X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-stable>, <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>; List-Post: <mailto:freebsd-stable@freebsd.org> List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>, <mailto:freebsd-stable-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 10 Nov 2015 11:54:54 -0000 Hi, on 10.11.2015 15:05, Trond Endrestøl wrote: > I blame file(1), it's hopelessly slow. mcview uses file(1) to deduce > if it should just display the damn file or run the file through some > filter. Maybe an option in mc/mcview to disable the use of file(1) is > an acceptable compromise. Yeah, you seem to be right. /usr/bin/time -h file /var/log/maillog gives same time of 37-40 seconds to process the file. The main answer is now why file(1) is that slow ? I tested it on files of about same size and UFS - there's no lag at all. Is it worth to report this in bugzilla ? Thanks. Eugene.
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