similar to: Read CPU Performance Statistics

On Thu, Mar 10, 2016 at 10:29:08PM -0500, Digimer wrote: > Hi all, > > I got a new laptop recently and what worked before no longer works > (Fedora 23 on the laptops in both cases)... > > I'm trying to get nested virtualization to work because I use the VMs > on the laptop to simulate an HA cluster that itself hosts VMs. I don't > care much at all about the

Hi, I have found the cpu time partitioning based on cpu shares weights not very intuitive. On RHEL64, I deployed two qemu/kvm VMs VM1 with 1 vcpu and 512 cpu shares VM2 with 2 vcpus and 1024 cpu shares I pinned their vcpus to specific host pcpus: VM1 vcpu 0 to host pcpu1 VM2 vcpu 0 to host pcpu1, VM2 vcpu 1 to host pcpu2 I executed inside the VMs a simple process that consume all

Dear Jatin, Maybe it’s a good idea first to implement Spice: <video> <model type='qxl' ram='65536' vram='65536' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video>

Hi Roberto, What is the cpu and memory configuration of your guest? Are you pinning to dedicated CPUs, are you exposing host topology and cpu features, do you have dedicated I/O threads? Are you backing the guest memory with hugepages? All of the above will likely increase performance and minimise noise. Cheers, On 6 December 2016 at 05:13, Roberto Fichera <kernel at tekno-soft.it> wrote:

Greetings everyone,        I just want to ask if it is possible to get the CPU usage of the VMs in KVM through libvirt? I mean, how does the virt-manager produce the graph it displays? Is there a way get this graph? But instead of the graph itself, I just need to get it in percentage(%) form. I'd like to know how. Thank you and your help will be greatly appreciated. regards, Marco

Jatin, Using qemu without the virtio scsi and nic drivers is like running vmware with ide disks and e1000 nic instead of LSI disks and vmxnet3 nics, it forces the system to emulate completely different hardware. In linux the virtio drivers are implemented in the kernel, so you either need a new kernel or the virtio kernel modules. I'm not sure which for RHEL5, but I suspect you can get

Hi , I was previously using xen and currently moved to KVM. I am using libvirt to manage these VMs. In den's credit scheduler , I had the ability to set a cap on the cpu usage for a VM. But I was not able to find a similar substitute in KVM. I find that we can use cgroups to provide shares for VM but that will be more like weight based and it doesn't set a hard cap for that VM. I tried

Hi, I am working on a highly powerful analytical database system - SAP HANA. it can crunch a million records in a matter of micro seconds and supply the data (in the form of a table/dataframe) for any R algorithm/function. I am looking for specific scenarios/use cases/KPIs in the Finance/Insurance sector to bring together the the data crunching power of SAP HANA and functions available in HANA.

Hi, virDomainInterfaceStats - This function returns network interface stats for interfaces attached to the domain. virDomainBlockStats- This function returns block device (disk) stats for block devices attached to the domain. Based on which time interval these function returns values. Is it cumulative from the vms uptime..? OR average ...? How can I get the average statistics of Disk and

On 12/06/2016 06:06 AM, Blair Bethwaite wrote: > Hi Roberto, Hi Blair > What is the cpu and memory configuration of your guest? I've set to copy host configuration (16 cores) and memory is set to 24GB, host has 64GB. Guest is Windows 2012 64bits version Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 16

Hi There, I've moved some Windows2012 with MSSQL VMs from an hold ESXi 5.5 machine to a more recent and powerful machine running Fedora 24 x86_64 and related libvirt + KVM virtualization. I've moved the VMs filesystem to LVM slices and installed the VirtIO drivers in to all Windows VMs. I've also set both Disk and Network interface to work using VirtIO. So far so good everything works

On Tue, Nov 14, 2017 at 10:23:56AM -0700, Blair Bethwaite wrote: > Hi all, > > This is not really a libvirt issue but I'm hoping some of the smart folks > here will know more about this problem... > > We have noticed when running some HPC applications on our OpenStack > (libvirt+KVM) cloud that the same application occasionally performs much > worse (4-5x slowdown)

Ravi/Karthick, If one of the self heal process is down, will the statstics heal-count command work? On Mon, Sep 4, 2017 at 7:24 PM, lejeczek <peljasz at yahoo.co.uk> wrote: > 1) one peer, out of four, got separated from the network, from the rest of > the cluster. > 2) that unavailable(while it was unavailable) peer got detached with > "gluster peer detach" command

Hi, I have a server using its 4 physical network interfaces bonded, with the bonding interface added to a bridge. The bridge has the IP, and three VMs are using the bridge. Two of the VMs are running Debian, one is running Windoze 7. CPU load caused by the qemu-kvm processes is way higher than I?m happy with. One of the Debian machine causes around 22% while it?s basically idle, the other one

Dear R forum, I am seeking relevant material that discusses processes and methods of incorporating R code into SAP-HANA. I would greatly appreciate links to any relevant literature. Background research on my part has only found the SAP-HANA R Integration Guide, and several short examples. If the forum knows of any other sources of information, this would be greatly appreciated. Regards Mike

Hello, I am facing an issue where the detected CPU frequencies in KVM guests are incorrect. I am using the new Core i9 7900x with base clock 3.3GHz with "host-passthrough". Both Win10 and Linux guests incorrectly detect 3.45GHz for some reason. The workaround I have found is to temporarily switch to use HPET clocksource in the HOST before starting the VM. This makes the VMs correctly

On Fri, Dec 07, 2018 at 11:52:38 +0100, Milan Zamazal wrote: > Hi, some custom CPU models are reported from > virConnectGetDomainCapabilities as usable='yes' on a physical machine > while as usable='no' inside a VM running on the same machine. That's > not completely surprising. > > But what surprises me is that those models are still reported from >

On Tue, Dec 11, 2018 at 10:45:12 +0100, Milan Zamazal wrote: > Jiri Denemark <jdenemar@redhat.com> writes: > > > On Fri, Dec 07, 2018 at 11:52:38 +0100, Milan Zamazal wrote: > >> Hi, some custom CPU models are reported from > >> virConnectGetDomainCapabilities as usable='yes' on a physical machine > > > >> while as usable='no'

Hi Jatin, The RedHat documentation on this is extremely helpful. It's so helpful that I use it as a reference on completely different distributions. VMWare does a pretty good job of guiding you and giving you defaults that are sensible. With Libvirt/QEMU/KVM, you need to get an idea of those and enable them yourself. For example, I see that you are using qcow2 files, but if you don't

Hi, some custom CPU models are reported from virConnectGetDomainCapabilities as usable='yes' on a physical machine while as usable='no' inside a VM running on the same machine. That's not completely surprising. But what surprises me is that those models are still reported from virConnectCompareCPU as supported (VIR_CPU_COMPARE_SUPERSET) in the nested environment and VMs can