From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7348 invoked by alias); 2 Nov 2017 13:36:36 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 7311 invoked by uid 89); 2 Nov 2017 13:36:35 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 required=5.0 tests=BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_SPAM,SPF_PASS autolearn=no version=3.3.2 spammy=Hx-languages-length:1566, recall, Kenneth, kenneth X-HELO: mail-io0-f175.google.com Received: from mail-io0-f175.google.com (HELO mail-io0-f175.google.com) (209.85.223.175) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 02 Nov 2017 13:36:34 +0000 Received: by mail-io0-f175.google.com with SMTP id 97so13986561iok.7 for ; Thu, 02 Nov 2017 06:36:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:content-transfer-encoding; bh=zBxVMI0Abx/BEzdKsznYesHDrD3PNfyD0t/zakLijG8=; b=o1m+wOoqOSQ22SyX58SdovMyZCj/sqkEMKsui69Il8/UQ6J8kgqQ+JFsWcnzTucv0I 6dzNSWCHyj4h0QRWXNrSIkUqgn83V9ZjeA4+IRvBv/IkqQNtKVTkA6/ItfQJr2dXBclI tFKp7Gxb9m9I2J4ywuPgRFa6lf7Ypr5TyblA1JvGOh/3lAexCYGGeRJ9zy8MERQsZhWK AQJ2CdIjEqndqg9UUBbLEeVpxMkGDLIITxIMMpreUbr2c+LPlBNaw1TN+FyFiiU/OLZS TTXXkOhjENNVWxyZ6Ts1ardrCib4qlSMNY9eUvVX6cFXyD8lYY28TuxWxW5upPXrZk/6 pNGg== X-Gm-Message-State: AJaThX7IbaxvNHtSZhLe8wUcwWe8N+1KStuWe4TlklBt54KYn+fSM97n +I4uiZbvE5Ho37y4VQ8winQbrygfD8HjpNAk1BgZUDes X-Google-Smtp-Source: ABhQp+RBx9Jnq97CFptrgVD8NnFJVFIAClM9dLklxOBTKSLPUO0PW7TLH/eerTVKgA/Lz1WYxICE1AX+OttfNH/bMUY= X-Received: by 10.107.63.67 with SMTP id m64mr4486241ioa.272.1509629791428; Thu, 02 Nov 2017 06:36:31 -0700 (PDT) MIME-Version: 1.0 Received: by 10.2.105.151 with HTTP; Thu, 2 Nov 2017 06:36:30 -0700 (PDT) In-Reply-To: References: From: Erik Bray Date: Thu, 02 Nov 2017 13:36:00 -0000 Message-ID: Subject: Re: Cygwin on Win10 much slower than Win7 To: cygwin@cygwin.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2017-11/txt/msg00031.txt.bz2 On Wed, Nov 1, 2017 at 3:50 PM, Nellis, Kenneth wrote: > Since migrating from a Windows 7 laptop to one with Windows > 10, I've noticed a significant speed decrease in opening a > mintty/bash window from about 0.5s to 3.5s. > > I've narrowed it down to two bottlenecks in .bash_profile: > to "cygpath" and "source". > > Each invocation of cygpath on Win10 takes about 0.12s while > on Win7 takes only 0.016s. Both are running 64-bit Cygwin > 2.9.0, and cygpath version 2.9.0. > > The files being sourced are the same, but for example, one > file, .bash_aliases, only contains alias statements and a > few variable assignments. On Win7, "time" says it takes > 0.000s, but on Win10 it takes 0.023s. > > The Win7 CPU is "i7-4600M @ 2.90 GHz 2.90 GHz" while the > Win10 CPU is "i7-6600U @ 2.60 GHz 2.81 GHz". I can't imagine > this difference accounts for a 10x speed difference. Also the > Win10 machine has an SSD compared to the Win7 machine's SCSI > hard disk, which would favor the Win10 machine. > > I was wondering if anyone else noticed such a thing or could > account for this speed difference. Can I simply blame Windows > 10? There could be a real issue here, but for what it's worth I haven't noticed such extreme slowdown. But I don't have a Windows 7 machine to compare to. I upgrade the one I'm on now from Windows 7 to Windows 10 over a year ago, so if there ever was a difference maybe I just got use to it and didn't notice. I don't recall any major issues when I first upgraded either though =C2=AF= \_(=E3=83=84)_/=C2=AF -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple