[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] HVM failing. Tips please?
Hi Ken!thanks for answering so fast. My Dom0 uses all CPUs available (8 in this case, due to a bug that doesn't allow VMs to shutdown, reboot... if I set this to 1) so it's hard for me to separate DomU from Dom0 in CPU usage, although it's a good idea. Thanks, Aleix. El 25/03/2009, a las 16:16, Ken Cobler escribió: Aleix Dorca wrote:I have Suse 10.0 (Xen 3.1) running with Windows 2003 and Windows XP VMs. Both Windows 2003 and Windows XP are running from boot.Hi people,I have several Xen Dom0's working. Those that have PV domU's work awesomely and without any problems. The ones that have HVM domU's fail once every two weeks (more or less). Here's the setup:Dell PowerEdge 1950 IIIUbuntu 8.04.1 (64bits) with Xen 3.3.0 compiled over the linux-image- xen from Ubuntu.HVM domU's are Windows 2003 Server EnterpriseI've set the clocksource to "jiffies" to avoid high load fails (this reduced the failing A LOT).All disks are accessed via iscsi.As said every now and then Dom0 hangs completely. No net access whatsoever... all gone. I have to manually stop the machine and restart it.I have found that I pin a VM to a vCPU. In HVM, all disk access (if not using GPLV driver) uses dom0 to complete the request. By making certain that dom0 has 1 vCPU to itself always, limits the chance of getting into an I/O bottleneck.By default, all domU's and dom0 are allowed to run on any vCPU available.Ken Cobler _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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