Is there a recommended 'CPU Ratio' for
- DMAs
- Cassandra nodes
- Elastic nodes
running on a VM?
With 'CPU Ratio', I mean comparing the 'real' CPU cores with the 'logical' CPU cores. e.g. creating 16 logical cores out of 4 real cores = 1/4.
Are the cores mentioned in this overview logical ones or real ones?
Hi Jochen, the numbers mentioned as CPU cores in that overview should be interpreted as logical cores. As you can realize depending on the actual physical cpu, the power of the logical core can differentiate quite a bit. So you shouldn't stare blind only on the number of logical cores. More important is the benchmark metric of amount of cpu passmark (eg. >10000 for an enterprise DataMiner) That's what your server instance (either virtual or bare metal) needs to pass in order to make the minimum specifications. If you are in a bare metal scenario, this should be quite straight forward. In a virtualized environment you need to take into account whether this has been provisioned and set up in a way that there could be cases of oversubscription on actual (cpu, mem, disk) resources within the VM environment or not. In other words, you need to be able to benchmark >10000 even when all other server instances in the VM environment are also under high load.