similar to: KVM + virsh nodeinfo + CentOS 6.3

Hi all, I am trying to add vcpupin in the guest xml file. I am working with openstack and the code I have is python bound. I investigated through the code and found that the elemets in xml file are set in get_guest_config function. Now the thing is I am not able to set vcpupin element. I mean I tried guest.cputune_vcpupin but it's not working. Help me out, please! Thanks.   ~Peeyush Gupta

On 09/14/2018 03:36 PM, Lukas Hejtmanek wrote: > Hello, > > ok, I found that cpu pinning was wrong, so I corrected it to be 1:1. The issue > with iozone remains the same. > > The spec is running, however, it runs slower than 1-NUMA case. > > The corrected XML looks like follows: [Reformated XML for better reading] <cpu mode="host-passthrough">

Hello, I have cluster with AMD EPYC 7351 cpu. Two CPUs per node. I have performance 8-NUMA configuration: This is from hypervizor: [root@hde10 ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 2 NUMA

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Hi folks! i created a server with this XML file: <domain type='lxc'> <name>lxctest1</name> <uuid>227bd347-dd1d-4bfd-81e1-01052e91ffe2</uuid> <metadata> <libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0"> <libosinfo:os id="http://centos.org/centos/6.9"/>

Hello again, when the iozone writes slow. This is how slabtop looks like: 62476752 62476728 0% 0.10K 1601968 39 6407872K buffer_head 1000678 999168 0% 0.56K 142954 7 571816K radix_tree_node 132184 125911 0% 0.03K 1066 124 4264K kmalloc-32 118496 118224 0% 0.12K 3703 32 14812K kmalloc-node 73206 56467 0% 0.19K 3486 21

On 09/17/2018 04:59 PM, Lukas Hejtmanek wrote: > Hello, > > so the current domain configuration: > <cpu mode='host-passthrough'><topology sockets='8' cores='4' threads='1'/><numa><cell cpus='0-3' memory='62000000' /><cell cpus='4-7' memory='62000000' /><cell cpus='8-11'

Hello Community, I successfully installed and run xen (xm list and xm info can output appropriately). However, while I was installing domU image by using virt-install -p at domU OS. I encountered an error information" Host does not support virtualization type ''xen'' ". I built xen from source. Some of my friends have the same issue, but if they use pre-build xen, the

Hello, According to the docs, vcpupin will use either cgroups or sched_setaffinity to pin vcpu threads to cpus. How is this decision made? I observe differences even on different hosts featuring the same version of libvirtd (1.3.1): on one host vcpupin affects cpuset.cpus (cgroup), and on the other it affects vcpu threads affinity (observed through taskset). Thanks, Nikos -------------- next

Hi all, This is the second take of a patch that I submitted some time ago for allowing specifying vcpu pinning taking NUMA nodes into account. IOW, something like this: * "nodes:0-3": all pCPUs of nodes 0,1,2,3;  * "nodes:0-3,^node:2": all pCPUS of nodes 0,1,3;  * "1,nodes:1-2,^6": pCPU 1 plus all pCPUs of nodes 1,2    but not pCPU 6; v1 was a single patch, this is

Hi all, I am working with libvirt and I am trying to set cpu affinity. Now I can always use      virsh vcpupin <domain_name> <vcpu> <pcpu> to pin vcpus to pcpus. I want to do it using Python API. Now, there is function pinVcpu which is supposed to do that. But this is not working. For example I gave      dom.pinVcpu(0,1) but still my vcpu affinity is for all the pcpus. The

Hi, We've run into a problem with libvirt 1.1.2 and are looking for some comments on whether this is a bug or design intent. We're trying to use migrateToURI() but we're using a few things (numatune, vcpu mask, etc.) that may need adjustment during the migration. We found that migrateToURI2() mostly works if we use XML created by copying the domain XML from the running instance

On 02/11/2014 04:45 PM, Cole Robinson wrote: > On 02/10/2014 06:46 PM, Chris Friesen wrote: >> Hi, >> >> We've run into a problem with libvirt 1.1.2 and are looking for some comments >> on whether this is a bug or design intent. >> >> We're trying to use migrateToURI() but we're using a few things (numatune, >> vcpu mask, etc.) that may need

> On 23 Dec 2014, at 12:59, Ian Campbell <ijc at debian.org> wrote: > > Control: reassign -1 xen-utils-common 4.4.1-6 > Control: retitle -1 /etc/init.d/xen fails when run in a guest, causing postinst to fail. > > Seems like this issue is in the Xen packages not in the xen-linux-system > metapackage, so reassigning. > > On Mon, 2014-12-22 at 23:01 +0100, Sydney

here is my problem: Parsing config file vir2.cfg Daemon running with PID 11570 Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Linux version 3.0.0 (root@localhost.localdomain) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Mon Oct 28 00:35:01 CST 2013 Command line: root=/dev/hda1 ro ACPI in unprivileged domain disabled released 0 pages

Hi, I have a Windows 7 SP1 Pro 64-bit VM which works fine on libvirt 2.3.0 and Qemu 2.7.0. If I enable HyperV features (https://libvirt.org/formatdomain.html#elementsFeatures) like "relaxed", "spinlocks" etc - VM doesn't boot. "Starting Windows" text appears for ~2 seconds (no flying dots, no logo) and then it just goes to black screen. If I switch HyperV

Hi, I have a KVM host running ubuntu 18.04 with libguestfs-tools version 1.36.13-1ubuntu3.3 installed from the Ubuntu's repo and when I try to use virt-cat for example on a VM it fails with: libguestfs: error: appliance closed the connection unexpectedly. > libguestfs: error: guestfs_launch failed. After doing "export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1" and running the

Hi folks, I have run into a confusing problem. My initial problem is: Conga does not offer "Add a virtual machine service". So I googled and found a RedHat advisory on that: http://rhn.redhat.com/errata/RHBA-2009-1623.html which points updates that should fix this. I checked on my cluster, but the relevant packages are current (and even if ALL packages are current it does not work).

Hello Ian, i?ve tried to install "xen-linux-system-amd64" on a VMware host again and everything went fine. The Installation completes and i can boot into Xen und boot up the Dom0. So, you were right. It seems to be a problem with the initscript, but as far as i can tell, only when running xen under xen. To me, this specific issue is resolved, since the meta-package seems to install

Hi Sydney, Thanks for all the info. I'd like to have the initscript work sensibly in this scenario at some point (not for Jessie though, it's too late now) so I think we may as well keep this bug around to track that since it already contains a bunch of useful information. Thanks, Ian. On Tue, 2014-12-30 at 00:39 +0100, Sydney Meyer wrote: > Hello Ian, > > i?ve tried to