Configurations - /cpu/ram/disk

[VMwareUserR]

The VMmark benchmarking guide has specified the RAM and Disk size requirements for running 2 virtual cpu for mail, java,database servers and 1 cpu for standby, web and file servers. For future planning, what would be the requirements of RAN and Disk size if I double the number of virtual cpus for all the servers?

Thanks.

[psmith2006]

If you are running a non-standard test and double the number of vCPUs in each VM, then unless you changed something else like load level requested by the individual workloads, there would not be a need to increase Ram or Disk. In the current VMmark beta, only Standby and Fileserver are 1 vCPU VMs, the other 2 are 2 vCPU VMs. In the next beta, we are planning to reduce the memory foot print of the tile by reducing the RAM in the Javaserver and Mailserver VMs to 1GB.

[VMwareUserR]

I would like to clarify the meaning of virtual cpu -

Does the virtual cpu imply the logical processor? for example, if ESX is running in a dua-core processor with the hypertheading enabled, is the number of the virtual cpu "4"? or ESX has its own definition of the virtual cpu?

[admin]

No, virtual CPUs have no notion of hyperthreading. ESX Server takes advantage of hyperthreading on the box, but the virtual CPUs are not considered hyperthreaded. So you can think of a virtual CPU as being similar to a single-core non-hyperthreaded CPU.