From mboxrd@z Thu Jan 1 00:00:00 1970 From: George myglc2 Clemmer Subject: Why is IceCat/GuixSD slower than Firefox/Debian on headless servers? Date: Mon, 15 Jan 2018 23:26:42 -0500 Message-ID: <86shb6bf99.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:42912) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebIpk-00010d-MX for help-guix@gnu.org; Mon, 15 Jan 2018 23:26:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ebIph-0004p6-Iz for help-guix@gnu.org; Mon, 15 Jan 2018 23:26:48 -0500 Received: from mail-qt0-x22b.google.com ([2607:f8b0:400d:c0d::22b]:36718) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ebIph-0004oX-E8 for help-guix@gnu.org; Mon, 15 Jan 2018 23:26:45 -0500 Received: by mail-qt0-x22b.google.com with SMTP id a16so16778582qtj.3 for ; Mon, 15 Jan 2018 20:26:45 -0800 (PST) Received: from g1 (c-73-167-118-254.hsd1.ma.comcast.net. [73.167.118.254]) by smtp.gmail.com with ESMTPSA id c50sm869975qtk.35.2018.01.15.20.26.42 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 15 Jan 2018 20:26:43 -0800 (PST) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-guix-bounces+gcggh-help-guix=m.gmane.org@gnu.org Sender: "Help-Guix" To: help-guix Running from a desktop to a headless server, and based on side-by-side clicking, IceCat/GuixSD takes ~5x times as long as Mozilla/Debian to respond to clicks. Further, Mozilla/Debian takes ~5x times as long as Mozilla running on the desktop. The bottom line: IceCat/GuixSD is unbearably slow. Has anyone else seen this? Is there a known IceCat/GuixSD performance problem? Details: Two identical headless servers with 3.4GHz E3 1240 V3 CPUs and PCI SATA NVMe SSDs. One runs Mozilla Firefox 45.7.0 on Debian 8.x. which was updated a few months ago. The other runs guix 0.14.0.617-e2f37 from a couple weeks ago. The desktop is XQuartz/MacOS 10.13.2/iMac. Both servers are reached via the same physical 1000BaseT network. Swapping the server switch port/cables doesn't affect the result.