Workload Profile Dependencies for 1st and 2nd Gen AMD EPYC™ processors
NOTE:
Options vary based on hardware installed on the server.
| General Power Efficient Compute | General Peak Frequency Compute | General Throughput Compute | Virtualization - Power Efficient | Virtualization - Max Performance | Low Latency | Mission Critical | |
|---|---|---|---|---|---|---|---|
| Power Regulator | OS Control | Static High Performance | Static High Performance | OS Control | Static High Performance | Static High Performance | x |
| SR-IOV | x | x | x | Enabled | Enabled | Disabled | x |
| AMD IOMMU | x | x | x | Enabled | Enabled | x | x |
| AMD Virtualization Technology | x | x | x | Enabled | Enabled | Disabled | x |
| Minimum Processor Idle Power Core C-state | C6 | x | x | C6 | No C-states | No C-state | x |
| AMD Turbo Core | Enabled | Enabled | Enabled | x | Enabled | Disabled | x |
| L1 Stream HW Prefetcher | Enabled | Enabled | Enabled | x | x | Enabled | Enabled |
| L2 Stream HW Prefetcher | Enabled | Enabled | Enabled | x | x | Enabled | Enabled |
| NUMA Group Size Optimization | Flat | Clustered | Clustered | Clustered | Clustered | Clustered | x |
| Memory Patrol Scrubbing | x | x | x | x | x | Disabled | x |
| Memory Refresh Rate | x | 1x | 1x | x | x | 1x | 2x |
| x2APIC | x | x | x | x | x | Auto | x |
| Transactional Application Processing | High Performance Compute (HPC) | Decision Support | Graphic Processing | I/O Throughput | Custom | EV Name | |
|---|---|---|---|---|---|---|---|
| Power Regulator | Static High Performance | Static High Performance | x | x | x | x | CQHPER |
| SR-IOV | x | Disabled | x | Disabled | x | x | CQHSRIOV |
| AMD IOMMU | x | x | x | x | x | x | CQHSKTPROC |
| AMD Virtualization Technology | x | Disabled | x | Disabled | x | x | CQHAMD |
| Minimum Processor Idle Power Core C-state | No C-states | No C-states | x | x | x | x | CQHSKTPOWER |
| AMD Turbo Core | Enabled | Enabled | x | x | x | x | CQHSKTPOWER |
| L1 Stream HW Prefetcher | Enabled | Enabled | Enabled | Enabled | Enabled | x | CQHSKTPROC |
| L2 Stream HW Prefetcher | Enabled | Enabled | Enabled | Enabled | Enabled | x | CQHSKTPROC |
| NUMA Group Size Optimization | Clustered | Clustered | Clustered | Clustered | Clustered | x | CQHNUMA |
| Memory Patrol Scrubbing | x | x | x | x | x | x | CQHMEM |
| Memory Refresh Rate | x | 1x | x | x | x | x | CQHMEM |
| x2APIC | x | Auto | x | Auto | x | x | CQHSKTPROC |