https://communities.vmware.com/t5/ESXi-Discussions/vCPUs-and-cores/m-p/2886548#M279672 <P>When creating a new VM I can set the number of vCPUs and cores.<BR />Given the numver of sockets I can assign to a given VM (let's say, 4), which is the best practice for a Windows Server VM?</P><UL><LI>2 vCPUs with 2 cores each?</LI><LI>4 vCPUs with core each one?</LI><LI>1 vCPU with 4 cores?</LI></UL><P>Is it the same for Linux based guests?<BR />marius</P> Wed, 05 Jan 2022 13:49:35 GMT marius1 2022-01-05T13:49:35Z https://communities.vmware.com/t5/ESXi-Discussions/vCPUs-and-cores/m-p/2886548#M279672 <P>When creating a new VM I can set the number of vCPUs and cores.<BR />Given the numver of sockets I can assign to a given VM (let's say, 4), which is the best practice for a Windows Server VM?</P><UL><LI>2 vCPUs with 2 cores each?</LI><LI>4 vCPUs with core each one?</LI><LI>1 vCPU with 4 cores?</LI></UL><P>Is it the same for Linux based guests?<BR />marius</P> Wed, 05 Jan 2022 13:49:35 GMT https://communities.vmware.com/t5/ESXi-Discussions/vCPUs-and-cores/m-p/2886548#M279672 marius1 2022-01-05T13:49:35Z https://communities.vmware.com/t5/ESXi-Discussions/vCPUs-and-cores/m-p/2886577#M279677 <P>As many cores per socket as necessary to replicate the underlying HW the vCPUs are scheduled on, that usually means as many cores (or threads) as are in a socket / NUMA node (depending on VM / HW size).<BR /><BR />Longer explanation here: <A href="https://communities.vmware.com/t5/ESXi-Discussions/cores-vs-sockets-disks-vs-controllers/m-p/2829364/highlight/true#M274528" target="_blank">https://communities.vmware.com/t5/ESXi-Discussions/cores-vs-sockets-disks-vs-controllers/m-p/2829364/highlight/true#M274528</A><BR /><BR />Yes, same for Linux guests (even more so since Linux is using a relationship scheduler that takes that information into account).</P> Wed, 05 Jan 2022 15:15:50 GMT https://communities.vmware.com/t5/ESXi-Discussions/vCPUs-and-cores/m-p/2886577#M279677 vbondzio 2022-01-05T15:15:50Z