NIC Ring Buffer & IRQ Affinity Calculator
NIC Ring Buffer & IRQ Affinity Calculator
Calculate ethtool -G ring buffer sizes, RSS queue count, and CPU affinity/irqbalance pinning strategy.
Ring Buffer vs Drop Rate Trade-off
| Ring Size | Latency Impact | Drop Risk | Use Case |
|---|---|---|---|
| 256 | Very low | High (burst drops) | Real-time, low latency priority |
| 512 | Low | Medium | Latency-sensitive RPC |
| 1024 | Medium | Low | General purpose |
| 2048 | Medium-high | Very low | Bulk transfer, 10Gbps+ |
| 4096 | High (adds latency) | Minimal | 100Gbps, sustained PPS |