I've had the privilege to work on some of the current generation Intel Westmere and Nehalem EX servers over the past few months. This testing has focused on Oracle RAC (which has been pretty cool in lots of ways) and has involved what I would have considered to be very large VMs not so long ago. My typical RAC node for testing is usually 4 or 8 vCPUs with 32 GB of RAM, and it turns out these are moderate or small in size.
When the server has 32 cores and 256 GB of RAM, a VM with only 8 vCPU and 32 GB is relatively small. In fact I'm often running four of them at the same time and still find that performance is great. Additionally, I'm using vMotion to move these VMs in a matter of minutes from one server to another.
I'm using these 8 vCPU VMs with 32GB of RAM the same way that I used 2 vCPU VMs with 8GB a few years ago. They are no longer big VMs. Can't wait to see what we are doing in a few more years.
Running on Isla Mujeres Again
5 weeks ago