All requests submitted at once — engine queues them, processes B=1 at a time. E2E includes queue wait.
| Engine | B | req/s | tok/s | E2E p50 | E2E p99 |
|---|---|---|---|---|---|
| liteinfer | 1 | 1.75base | 72.66base | 11579.4 msbase | 18235.5 msbase |
| liteinfer-kvcache | 1 | 1.821.03x | 72.561.00x | 10167.2 ms1.14x | 17625.8 ms1.03x |
| liteinfer-native-kvcache | 1 | 1.821.04x | 72.661.00x | 10167.9 ms1.14x | 17602.9 ms1.04x |
| liteinfer-b4 | 4 | 4.402.51x | 180.532.48x | 4101.0 ms2.82x | 7278.4 ms2.51x |
| vllm | 1 | 2.891.64x | 180.002.48x | 5792.6 ms2.00x | 11045.3 ms1.65x |
| vllm-b4 | 4 | 10.796.15x | 656.689.04x | 1623.6 ms7.13x | 2928.5 ms6.23x |
Sequential, no queue — each request sent only after previous finishes. Pure per-request engine latency.
| Engine | B | TTFT p50 | TTFT p99 | E2E p50 | tok/s |
|---|---|---|---|---|---|
| liteinfer | 1 | 13.7 msbase | 15.7 msbase | 1732.8 msbase | 71.57base |
| liteinfer-kvcache | 1 | 15.3 ms0.89x | 16.5 ms0.95x | 1550.3 ms1.12x | 72.211.01x |
| liteinfer-native-kvcache | 1 | 14.2 ms0.97x | 15.2 ms1.03x | 1547.6 ms1.12x | 72.321.01x |
| vllm | 1 | 26.1 ms0.53x | 27.6 ms0.57x | 693.3 ms2.50x | 182.522.55x |