From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.30) id 1BArBr-0005Dx-0d for qemu-devel@nongnu.org; Tue, 06 Apr 2004 10:04:35 -0400 Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.30) id 1BArBJ-00054H-Tv for qemu-devel@nongnu.org; Tue, 06 Apr 2004 10:04:33 -0400 Received: from [216.127.66.50] (helo=srv01.centurywebdesign.com) by monty-python.gnu.org with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.30) id 1BArBJ-000543-K1 for qemu-devel@nongnu.org; Tue, 06 Apr 2004 10:04:01 -0400 Received: from shaggy (jamie [80.176.231.80]) by srv01.centurywebdesign.com (8.11.6/8.11.6) with SMTP id i36E1eU30737 for ; Tue, 6 Apr 2004 15:01:40 +0100 Message-ID: <001901c41bdf$81ce3b90$6407a8c0@shaggy> From: "Jamie Burns" References: <200404051047.11383.jm@poure.com><1081156203.3939.10.camel@aragorn> <4071B41F.3040201@bellard.org><001601c41b57$ed1704f0$6407a8c0@shaggy> <20040406121738.GC2774@linux-m68k.org> Subject: Re: [Qemu-devel] Qemu workstation Date: Tue, 6 Apr 2004 15:00:23 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Isnt there an instruction that gets sent when the OS is idle? To keep processors cool etc? VMWare describes some of this in: http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=1077 :o) ----- Original Message ----- From: "Richard Zidlicky" To: Sent: Tuesday, April 06, 2004 1:17 PM Subject: Re: [Qemu-devel] Qemu workstation > On Mon, Apr 05, 2004 at 10:49:51PM +0100, Jamie Burns wrote: > > > I am not sure that handling multiple VMs running at the same time is > > > very useful (some architectural changes are needed in QEMU). But > > > switching easily between VM configurations seems interesting. > > > > I think that multiple VM's is a worthy goal as long as you can minimise CPU > > usage. Having multiple VM's gives you the ability to do some very cool > > things. I use VMWARE in Windows and sometimes have both Linux and FreeBSD > > running in VM's so I can test software against all 3 OS's at once. I imagine > > it would be very useful to developers of cluster software. > > > > I tried the Win32 port the other day, running Linux, and it sat using 100% > > of the CPU whilst doing next to nothing at a command prompt. Using VMWARE, > > and waiting at a command prompt uses very little CPU time. > > > > Is QEMU sat in a busy loop all the time? > > it is not QEMU but the hosted OS that is in the busy loop. QEMU > will have to recognise "idle loops" to fix this - this could be > really tricky. > > Richard > > > > _______________________________________________ > Qemu-devel mailing list > Qemu-devel@nongnu.org > http://mail.nongnu.org/mailman/listinfo/qemu-devel