The driver node can reside on a physical system or a virtual machine. The following query utilization results are from both system types:
| Machine Type | Import | Export |
|---|---|---|
| Physical System (56 CPUs, 252GB memory) | 3% | 2.5% |
| Virtual Machine (2 CPUs, 16GB memory) | 70% | 55% |
Garbage collection time is greater on the virtual machine than on a physical system:
| Machine Type | Import | Export |
|---|---|---|
| Physical System (56 CPUs, 252 GB memory) | 500ms | 300ms |
| Virtual Machine (2 CPUs, 16 GB memory) | 600ms | 450ms |
CPU utilization increases as the number of concurrent queries increase (maximum of 5 concurrent queries):
| Machine Type | Import | Export |
|---|---|---|
| Physical System (56 CPUs, 252 GB memory) | 45% | 1% |
| Virtual Machine (2 CPUs, 16 GB memory) | 90% | 55% |