From owner-freebsd-emulation@FreeBSD.ORG Fri Sep 2 04:25:48 2011 Return-Path: Delivered-To: freebsd-emulation@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 615411065674 for ; Fri, 2 Sep 2011 04:25:48 +0000 (UTC) (envelope-from spawk@acm.poly.edu) Received: from acm.poly.edu (acm.poly.edu [128.238.9.200]) by mx1.freebsd.org (Postfix) with ESMTP id 033C68FC16 for ; Fri, 2 Sep 2011 04:25:47 +0000 (UTC) Received: (qmail 62373 invoked from network); 2 Sep 2011 04:25:46 -0000 Received: from unknown (HELO ?192.168.0.2?) (spawk@74.101.220.150) by acm.poly.edu with CAMELLIA256-SHA encrypted SMTP; 2 Sep 2011 04:25:46 -0000 Message-ID: <4E605A3B.8040107@acm.poly.edu> Date: Fri, 02 Sep 2011 00:23:23 -0400 From: Boris Kochergin User-Agent: Mozilla/5.0 (X11; FreeBSD i386; rv:6.0) Gecko/20110818 Thunderbird/6.0 MIME-Version: 1.0 To: freebsd-emulation@freebsd.org References: <4E4AD5D6.6090803@acm.poly.edu> In-Reply-To: <4E4AD5D6.6090803@acm.poly.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Funny sleep behavior with 8.2-R/amd64 on Linux KVM X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Sep 2011 04:25:48 -0000 On 08/16/11 16:40, Boris Kochergin wrote: > Hi. > > I have KVM running on a Linux machine: > > # uname -a > Linux [censored] 2.6.18-238.19.1.el5 #1 SMP Fri Jul 15 07:31:24 EDT > 2011 x86_64 x86_64 x86_64 GNU/Linux > > I created it as follows: > > virt-install --name [censored] --vcpus 2 --ram 2048 --disk > path=/var/lib/libvirt/images/[censored]/[censored],size=10,sparse=false --cdrom=/xen/iso/FreeBSD-8.2-RELEASE-amd64-disc1.iso > --network bridge:br0 --network bridge:br1 --vnc --noautoconsole --hvm > --accelerate --os-variant=freebsd7 --os-type unix > > Everything seems fine except one thing: it looks like the system, when > asked to sleep, sleeps for three times as long as it was asked to: > > # time sleep 1 > 0.000u 0.000s 0:03.02 0.0% 0+0k 0+0io 0pf+0w > > This is also evident in increased top(1) update delays, delays between > ping(8) sending packets, and so forth. Any thoughts? Replying to myself in case anyone bumps into this. I upgraded the VM to 9-BETA1 and all is well. # time sleep 1 0.000u 0.000s 0:01.04 0.0% 0+0k 0+0io 0pf+0w -Boris