search for: emulatorpin

...uestions. You mean an ioctl command to get > this info right? I had added one in one version a while back, but dropped it > because for some reason I thought we were going to do a generic vhost sysfs > type of interface. We are not doing sysfs right? Probably, but we need to make sure the emulatorpin can work for libvirt at last. Thanks >

Is it possible to use virsh to set the cpuset attribute of the CPU Allocation element in a domain ? <domain> ... <vcpu placement='static' cpuset="1-4,^3,6" current="1">2</vcpu> ... </domain> I have seen that virsh vcpupin and virsh emulatorpin can be used to query and set the cpusets of the <vcpupin> and <emulatorpin> children elements of <cputune> which override the cpuset of <vcpu>. If i did not have to pin to different PCPUs, I would execute just one command for the whole domain rather than one command p...

...; > </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>/machine</partition> > </resource> > <sysinfo type='smbios'> > <system> > <entry name='manufacturer'>Fedora Project</entry&g...

...<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> <sysinfo type="smbios"> <system> <entry name="manufacturer">OpenStack Foundation</entry>...

...et' natively. Specifically the methods I am comparing are 1. Using native shell taskset -a -cp $MY_CPUSET $MY_DOMAIN_PID 2. Using virsh console (performance ~30% down) for all $VCPUs virsh vcpupin my_domain -cpulist $MY_CPUSET -vcpu $VCPU -live virsh emulatorpin my_domain -cpulist $MY_CPUSET -live It seems that the usage of 'vcpupin' causes a performance drop even if it is run alongside 'taskset' on the same $CPU_SET Functionally everything seems to be working when I check the '/proc/' filesystem cat /proc/M...

On 4/12/23 2:56 AM, Jason Wang wrote: >> I can spin another patchset with the single ioctl design so we can compare. > So I'm fine with this approach. One last question, I see this: > > /* By default, a device gets one vhost_worker that its virtqueues share. This */ > > I'm wondering if it is better to have a vhost_get_worker() to return > the worker_id of a

...; > > <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>/machine</partition> > > </resource> > > <sysinfo type='smbios'> > > <system> > > <entry name='manufacturer...

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

...#39;/> </hugepages> </memoryBacking> <vcpu placement='static'>2</vcpu> <cputune> <shares>4096</shares> <vcpupin vcpu='0' cpuset='4'/> <vcpupin vcpu='1' cpuset='5'/> <emulatorpin cpuset='4,5'/> </cputune> <os> <type arch='x86_64' machine='pc'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-model&...

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"/>

...76' unit='KiB' nodeset='0'/> </hugepages> </memoryBacking> <vcpu placement='static'>2</vcpu> <cputune> <vcpupin vcpu='0' cpuset='4-5'/> <vcpupin vcpu='1' cpuset='6-7'/> <emulatorpin cpuset='4-7'/> </cputune> <os> <type arch='x86_64' machine='pc-i440fx-xenial'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> </features> <cpu mode='host-mo...