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...len Qiu) 3. Re: What is the difference between running "virt-manager" and "sudo virt-manager"? (Sven Schwedas) ---------------------------------------------------------------------- Message: 1 Date: Mon, 27 Oct 2014 16:14:22 +0800 From: "Allen Qiu"<my1stbox@163.com> To: "libvirt-users@redhat.com"<libvirt-users@redhat.com> Cc: ??? <chengwu.wang@net263.com>, 'Bin Liu' <binliu_gh@yahoo.com> Subject: [libvirt-users] Error starting Virtual Machine Manager: Failed to contact configuration server... Messa...

Hi all, Do you have any recommendation about benchmarking tools on Linux virtual machine for measure the potential performance hit by virtualization, especially on multi-threads computation, since I doubt if the CentOS VM can fully make use of the 32 vCPUs (out of 64 physical cores) that I allocated to it. Regards, Allen 2014-11-05 Allen Qiu

On Wednesday, November 5, 2014 5:53 AM, Allen Qiu <my1stbox@163.com> wrote: > Do you have any recommendation about benchmarking tools on Linux > virtual machine for measure the potential performance hit by > virtualization, especially on multi-threads computation You could try the phoronix-test-suite which is available in the [EPEL][1] reposito...

Hi all, What is the difference between starting virt-manager by "virt-manager" and by "sudo virt-manager"? It seems that there are two copy of virt-manager running in the background. When I run "virt-manager", I got a error of "Unable to open a connection to the libvirt management daemon. Libvirt URI is: qemu:///system Verify that: - The 'libvirtd'

Hi all! Do you have any idea about the following error message from virt-manager. I was trying to start it with "sudo virt-manager". Do you think I can fix this by simply restarting libvirtd? Regards, Allen Error starting Virtual Machine Manager: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS

Hi all, It seems no matter how many vCPU I allocated to the VM, the auto-generated vCPU pinning configuration won't cover more than 8 CPUs. Is that normal? Otherwise what should I do? Will vCPU pinning by virsh be more effective? Regards, Allen 2014-10-28 Allen Qiu

Hi all, Will over-allocation of vCPUs be counterproductive to VM Win7 Ultimate? I allocated 32 (out of 64 physical cores in 8 NUMA cells, and 128G out of 2T physical RAM) to the VM. But the boot process was extremly slow, actually the desktop screen never showed up then the VM just reboot automatically. So is there anything I can do to solve this problem or the truth is Win7 by design just cannot

Hi all, Do you have any idea about this error? virsh # dumpxml csg01win7test > domain.xml error: unexpected data '>' Regards, Allen 2014-10-28 Allen Qiu

Hi all, Does anybody have an idea about this "ioremap error" during the booting stage of VM CentOS7, although it can eventually bootup successfully. Regards, Allen 2014-11-05 Allen Qiu