search for: cputun

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2023 May 12
1
Question regaring correct usage of CPU shares
Hi there, I have a question regarding the shares option of the cputune section. I want to illustrate my question with the following example. Let's assume I have two virtual machines like the following on four dedicated core with two threads each: VM1: <cputune> <shares>512</shares> <vcpupin vcpu="0" cpuset="0"/>...
2014 Aug 27
0
Cputune causing VM to show usage as hardware interrupts
Hey All, What is the correct method for using cputune to use a percentage of a host core? From testing I currently have period set to 10,000 and quota set to 3,500. This gets me 35% of a used core on the host (36 3.4 2:42.20 qemu-system-x86) however when running stress inside the VM I am showing this usage in top;w %Cpu(s): 0.0 us, 0.0 sy, 0.0...
2017 Apr 27
1
Does lxc support cputune/vcpusched option
2013 Dec 03
0
cputune shares with multiple cpu and pinning
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
2011 Apr 04
0
Release of libvirt-0.9.0
...led, libvirt 0.9.0 was tagged and pushed today, it's available from FTP at: ftp://libvirt.org/libvirt/ This is a large release w.r.t. the amount of features and changes, and well worth bumping the middle version number. We are also getting closer to a 1.0.0 release ! Features: - Support cputune cpu usage tuning (Osier Yang and Nikunj A. Dadhania) - Add public APIs for storage volume upload/download (Daniel P. Berrange) - Add public API for setting migration speed on the fly (Daniel P. Berrange) - Add libxenlight driver (Jim Fehlig and Markus Gro?) - qemu: support migration to fd (Eric Bl...
2016 Nov 08
3
Sharing network namespace between containers
...lxc/1.0'> <name>nt</name> <uuid>43c00192-e114-4e29-8ce7-4b5487f60a75</uuid> <memory unit='KiB'>65536</memory> <currentMemory unit='KiB'>65536</currentMemory> <vcpu placement='static'>1</vcpu> <cputune> <shares>2000</shares> </cputune> <resource> <partition>/apphosting.partition</partition> </resource> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <clock off...
2013 Jul 31
2
start lxc container on fedora 19
...n fedora 19 i created a container rootfs of fedora 19 by using yum --installroot=/containers/test1 --releasever=19 install openssh test1.xml file for container test1 <domain type="lxc"> <name>test1</name> <vcpu placement="static">1</vcpu> <cputune> <shares>1024</shares> <period>1000000</period> </cputune> <memtune> <hard_limit unit="M">1024</hard_limit> <soft_limit unit="M">128</soft_limit> <min_guarantee unit="M">64&lt...
2013 Mar 25
1
Failed to boot lxc with libvirt 1.0.3:2013-03-25 06:54:17.620+0000: 1: error : lxcContainerMountBasicFS:563 : Failed to mount /selinux on /selinux type selinuxfs flags=e opts=(null): No such device
hi all, I am using lxc with libvirt. But I can't boot lxc container by libvirt 1.0.3(libvirt 0.9.8 works) . Below is my environment. Do I miss something? lxc1.xml:<domain type='lxc'> <name>lxc1</name> <memory>1024000</memory> <cputune> <shares>100</shares> </cputune> <os> <type>exe</type> <init>/bin/sh</init> </os> <devices> <console type = 'pty'/> </devices></domain> I used virsh -c lxc:/// create lxc1.xml and got the...
2018 Sep 17
2
Re: NUMA issues on virtualized hosts
...ell cpus="16-19" memory="62000000"/> <cell cpus="20-23" memory="62000000"/> <cell cpus="24-27" memory="62000000"/> <cell cpus="28-31" memory="62000000"/> </numa> </cpu> <cputune> <vcpupin vcpu="0" cpuset="0"/> <vcpupin vcpu="1" cpuset="1"/> <vcpupin vcpu="2" cpuset="2"/> <vcpupin vcpu="3" cpuset="3"/> <vcpupin vcpu="4" cpuset="4"/>...
2018 Sep 14
3
NUMA issues on virtualized hosts
...virtual node configuration: (i tried different numatune settings but it was still the same) <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'> <name>one-55782</name> <vcpu><![CDATA[32]]></vcpu> <cputune> <shares>32768</shares> </cputune> <memory>507904000</memory> <os> <type arch='x86_64'>hvm</type> </os> <devices> <emulator><![CDA...
2018 Sep 14
1
Re: NUMA issues on virtualized hosts
...9;62000000' /><cell cpus='16-19' memory='62000000' /><cell cpus='20-23' memory='62000000' /><cell cpus='24-27' memory='62000000' /><cell cpus='28-31' memory='62000000' /></numa></cpu> > <cputune><vcpupin vcpu='0' cpuset='0' /><vcpupin vcpu='1' cpuset='1' /><vcpupin vcpu='2' cpuset='2' /><vcpupin vcpu='3' cpuset='3' /><vcpupin vcpu='4' cpuset='4' /><vcpupin vcpu='5' c...
2018 Sep 17
0
Re: NUMA issues on virtualized hosts
...y='62000000' /><cell cpus='16-19' memory='62000000' /><cell cpus='20-23' memory='62000000' /><cell cpus='24-27' memory='62000000' /><cell cpus='28-31' memory='62000000' /></numa></cpu> <cputune><vcpupin vcpu='0' cpuset='0' /><vcpupin vcpu='1' cpuset='1' /><vcpupin vcpu='2' cpuset='2' /><vcpupin vcpu='3' cpuset='3' /><vcpupin vcpu='4' cpuset='4' /><vcpupin vcpu='5' c...
2012 Jun 18
1
How to set cpu limits to xen domU in libvirt
Hello, I looked in the the documents. Looks like the <cputune> period and quota will only support qemu driver. Of for xen user, how to set the hard cpu limit? -- Tony
2012 Oct 17
0
cgroup blkio.weight working, but not for KVM guests
I'm running libvirt 0.10.2 and qemu-kvm-1.2.0, both compiled from source, on CentOS 6. I've got a working blkio cgroup hierarchy which I'm attaching guests to using the following XML guest configs: VM1 (foreground): <cputune> <shares>2048</shares> </cputune> <blkiotune> <weight>1000</weight> </blkiotune> VM2 (background): <cputune> <shares>2</shares> </cputune> <blkiotune> <weight>100</weig...
2018 Sep 14
0
Re: NUMA issues on virtualized hosts
...y='62000000' /><cell cpus='16-19' memory='62000000' /><cell cpus='20-23' memory='62000000' /><cell cpus='24-27' memory='62000000' /><cell cpus='28-31' memory='62000000' /></numa></cpu> <cputune><vcpupin vcpu='0' cpuset='0' /><vcpupin vcpu='1' cpuset='1' /><vcpupin vcpu='2' cpuset='2' /><vcpupin vcpu='3' cpuset='3' /><vcpupin vcpu='4' cpuset='4' /><vcpupin vcpu='5' c...
2017 Apr 26
3
Tunnelled migrate Windows7 VMs halted
...2097152</currentMemory> > <memoryBacking> > <hugepages> > <page size='2048' unit='KiB' nodeset='0'/> > </hugepages> > </memoryBacking> > <vcpu placement='static'>2</vcpu> > <cputune> > <shares>4096</shares> > <vcpupin vcpu='0' cpuset='4-7'/> > <vcpupin vcpu='1' cpuset='4-7'/> > <emulatorpin cpuset='4-7'/> > </cputune> > <resource> > <partition&g...
2014 Feb 12
2
Re: Help? Running into problems with migrateToURI2() and virDomainDefCheckABIStability()
...dpdk> <memory unit="KiB">262144</memory> <currentMemory unit="KiB">262144</currentMemory> <memoryBacking> <hugepages/> </memoryBacking> <vcpu placement="static" cpuset="1-2">2</vcpu> <cputune> <vcpupin vcpu="0" cpuset="1"/> <vcpupin vcpu="1" cpuset="2"/> <emulatorpin cpuset="1-2"/> </cputune> <numatune> <memory mode="preferred" nodeset="0"/> </numatune&g...
2019 Sep 15
3
virsh -c lxc:/// setvcpus and <vcpu> configuration fails
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"/>
2012 Apr 13
3
Guests can't connect to each other
...t; <uuid>4eaaed00-c610-b468-ad55-600a0b4e244c</uuid> <memory>2048000</memory> <currentMemory>2048000</currentMemory> <memoryBacking> <hugepages/> </memoryBacking> <vcpu cpuset='0,2,4,8,10,12,14'>8</vcpu> <cputune> <vcpupin vcpu='0' cpuset='0,8'/> <vcpupin vcpu='1' cpuset='2,10'/> <vcpupin vcpu='2' cpuset='4,12'/> <vcpupin vcpu='3' cpuset='6,14'/> <vcpupin vcpu='4' cpuset='0,8'/&...
2015 Nov 30
2
Re: enabling virtio-scsi-data-plane in libvirt
2015-11-19 16:09 GMT+03:00 John Ferlan <jferlan@redhat.com>: > Check out virsh iothread{info|pin|add|del} and of course the > corresponding virDomain{Add|Pin|Del}IOThread and virDomainGetIOThreadInfo. Yes, thanks! Does in near feature libvirt devs integrate this ability to domain format? As i understand all qemu stable features supported by libvirt. And data plane for virtio-blk is