Hi Wei I tried setting cpucorespersocket to 8 on a VM with 8vCPU but it has still put them across 2 sockets?
Heres some of the xml output: <currentMemory unit='KiB'>8388608</currentMemory> <vcpu placement='static'>8</vcpu> <cputune> <shares>264</shares> </cputune> ...... <cpu mode='host-passthrough' check='none'> <topology sockets='2' cores='4' threads='1'/> </cpu> ....... Any ideas what I am doing wrong? BR Gary Gary Dixon Quadris Cloud Manager +44 (0) 161 537 4980 +44 (0) 7989 717661 gary.di...@quadris.co.uk www.quadris.com Innovation House, 12-13 Bredbury Business Park Bredbury Park Way, Bredbury, Stockport, SK6 2SN -----Original Message----- From: Wei ZHOU <ustcweiz...@gmail.com> Sent: Monday, March 11, 2024 5:29 PM To: users@cloudstack.apache.org Subject: Re: CPU topology Stop the vm Add a vm setting cpucorespersocket Start the vm -Wei On Monday, March 11, 2024, Gary Dixon <gary.di...@quadris.co.uk.invalid> wrote: > > > Meant to have stated here that our ACS version is 4.15.2 Hi > > ACS 4.1.2 > KVM on Ubuntu 20.04 > Hosts are Dell R7525 AMD EPYC dual socket 32 core CPU’s > > Is there a VM setting that can over-ride the CPU topology? > > It seems that when we have a VM with less than 8 vCPU – the domain xml > of a VM shows the CPU topology as a single socket. > However between 8 and 16 vCPU’s it shows the topology as having 2 > sockets and 16 or more vCPUs shows 4 sockets. > I have tried using a VM setting of cpuSocket = 1on a VM with 8vCPU’s > but it is ignored and continues to use a topology with 2 sockets > > BR > > Gary > > > [cid:image161185.png@43BB5413.7EEF77E3] > Gary Dixon > Quadris Cloud Manager > [cid:image347717.png@8A941AE6.9AE8C0C0] > +44 (0) 161 537 4980<tel:+44%20(0)%20161%20537%204980> > +44 (0) 7989 717661<tel:+44%20(0)%207989%20717661> > [cid:image253845.png@DEB7B540.7BE6A036] > gary.di...@quadris.co.uk<mailto:gary.di...@quadris.co.uk> > [cid:image058514.png@B54F0EC3.D31BE611] > http://www.q/ > uadris.com%2F&data=05%7C02%7CGary.Dixon%40quadris.co.uk%7Ca277409825e3 > 4aaf0d0c08dc41f0e5ee%7Cf1d6abf3d3b44894ae16db0fb93a96a2%7C0%7C0%7C6384 > 57750109219152%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2l > uMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=YgDCwDD5fCOV9ZT > WmqURHVoTP9sNAsxyiqgtn%2FYaAtY%3D&reserved=0<https://eur01.safelinks.p/ > rotection.outlook.com/?url=http%3A%2F%2Fwww.quadris.com%2F&data=05%7C0 > 2%7CGary.Dixon%40quadris.co.uk%7Ca277409825e34aaf0d0c08dc41f0e5ee%7Cf1 > d6abf3d3b44894ae16db0fb93a96a2%7C0%7C0%7C638457750109228420%7CUnknown% > 7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJX > VCI6Mn0%3D%7C0%7C%7C%7C&sdata=jOqpTPry%2FCm4zAUenX2SFUtrfzzt8WF3CgnDj% > 2FbM2B4%3D&reserved=0> [cid:image187233.png@747A4F03.8BAA600C] > Innovation House, 12‑13 Bredbury Business Park Bredbury Park Way, > Bredbury, Stockport, SK6 2SN > >