Speed test matrix
Kimi-K2.6 on RTX PRO 6000 Blackwell Server Edition 96GB ×8
vllm · 0.30.1rc1.dev452+g73a583112 · INT45 contexts (8K–123K) × 8 concurrency levels (1–128) · prefill at 8K, 16K, 32K, 64K, 123K, 128K
Hardware
- Type
- Discrete GPU
- GPU
- RTX PRO 6000 Blackwell Server Edition
- GPU count
- 8
- VRAM
- 768 GB (8 × 96 GB)
- OS
- linux
Engine
- Engine
- vllm
- Version
- 0.30.1rc1.dev452+g73a583112
- Quantization
- INT4
- Backend
- cuda
- Repository
- github.com/vllm-project/vllm
- Build
- cuda-13.2
- Commit
73a5831127a9
Run
- Served model
- moonshotai/Kimi-K2.6
- Revision
- main
- Benchmark tool
- llm-inference-bench v0.7.9
- Decode test
- Fixed duration
- Prefill mode
- Measured during decode warm-up
- Time per measurement
- 30 s
- Max output
- 4,096 tokens
Launch command
env VLLM_USE_V2_MODEL_RUNNER=1 FLASH_ATTENTION_CUTE_DSL_CACHE_ENABLED=1 VLLM_ENGINE_READY_TIMEOUT_S=3600 "$HOME/env_rtxpro6k-moonshotai-vllm-73a5831127a9/bin/vllm" serve moonshotai/Kimi-K2.6 --served-model-name moonshotai/Kimi-K2.6 --trust-remote-code --tensor-parallel-size 8 --reasoning-parser kimi_k2 --enable-auto-tool-choice --tool-call-parser kimi_k2 --max-model-len 131072 --gpu-memory-utilization 0.91 --host 0.0.0.0 --port 8000 --api-key <redacted> --mm-encoder-tp-mode data --kernel-config.enable_flashinfer_autotune=False --attention-backend TRITON_MLA --moe-backend marlin
Prefill
prompt tok/s by context length8K context5,8011,411 ms TTFT
16K context5,6692,862 ms TTFT
32K context5,3875,996 ms TTFT
64K context4,87613,220 ms TTFT
123K context4,14129,879 ms TTFT
128K context4,13731,127 ms TTFT
Sustained decode
total tok/s · rows are context length, columns are simultaneous requests| Context | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 |
|---|---|---|---|---|---|---|---|---|
| 8K | 63.080 ms TTFT | 110.2363 ms TTFT | 183.2193 ms TTFT | 285.4231 ms TTFT | Over capacity | Over capacity | Over capacity | Over capacity |
| 16K | 60.6135 ms TTFT | 106.3434 ms TTFT | 174.0310 ms TTFT | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity |
| 32K | 57.3228 ms TTFT | 100.0567 ms TTFT | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity |
| 64K | 51.3409 ms TTFT | 89.8810 ms TTFT | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity |
| 123K | 43.0756 ms TTFT | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity | Over capacity |
Over capacity: not run because this many requests at this context would exceed the server's KV cache.
TTFT is measured after the benchmark warms the server's prompt cache, so it mostly excludes prefill.
All measurements
Latencies are medians. Total tok/s is output across all simultaneous requests.| Phase | Context | Requests at once | Status | Total tok/s | Per request tok/s | TTFT | Time between tokens | Average active requests | Completed requests | Output tokens | Measured for |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Prefill | 8K | 1 | Valid | 5,801.0 | — | 1,411 ms | — | — | 1 | — | — |
| Prefill | 16K | 1 | Valid | 5,669.0 | — | 2,862 ms | — | — | 1 | — | — |
| Prefill | 32K | 1 | Valid | 5,387.0 | — | 5,996 ms | — | — | 1 | — | — |
| Prefill | 64K | 1 | Valid | 4,876.0 | — | 13,220 ms | — | — | 1 | — | — |
| Prefill | 123K | 1 | Valid | 4,141.0 | — | 29,879 ms | — | — | 1 | — | — |
| Prefill | 128K | 1 | Valid | 4,137.0 | — | 31,127 ms | — | — | 1 | — | — |
| Sustained decode | 8K | 1 | Valid | 63.0 | 63.1 | 80 ms | 15.9 ms | 1.0 | 0 | 1,890 | 30.0 s |
| Sustained decode | 8K | 2 | Valid | 110.2 | 54.7 | 363 ms | 18.3 ms | 2.0 | 0 | 3,304 | 30.0 s |
| Sustained decode | 8K | 4 | Valid | 183.2 | 45.9 | 193 ms | 21.8 ms | 4.0 | 0 | 5,496 | 30.0 s |
| Sustained decode | 8K | 8 | Valid | 285.4 | 35.9 | 231 ms | 27.9 ms | 8.0 | 0 | 8,558 | 30.0 s |
| Sustained decode | 8K | 16 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 8K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 8K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 8K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 16K | 1 | Valid | 60.6 | 60.6 | 135 ms | 16.5 ms | 1.0 | 0 | 1,816 | 30.0 s |
| Sustained decode | 16K | 2 | Valid | 106.3 | 52.9 | 434 ms | 18.9 ms | 2.0 | 0 | 3,190 | 30.0 s |
| Sustained decode | 16K | 4 | Valid | 174.0 | 43.8 | 310 ms | 22.8 ms | 4.0 | 0 | 5,216 | 30.0 s |
| Sustained decode | 16K | 8 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 16K | 16 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 16K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 16K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 16K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 1 | Valid | 57.3 | 57.4 | 228 ms | 17.4 ms | 1.0 | 0 | 1,720 | 30.0 s |
| Sustained decode | 32K | 2 | Valid | 100.0 | 49.7 | 567 ms | 20.1 ms | 2.0 | 0 | 2,998 | 30.0 s |
| Sustained decode | 32K | 4 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 8 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 16 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 32K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 1 | Valid | 51.3 | 51.4 | 409 ms | 19.5 ms | 1.0 | 0 | 1,539 | 30.0 s |
| Sustained decode | 64K | 2 | Valid | 89.8 | 44.5 | 810 ms | 22.5 ms | 2.0 | 0 | 2,691 | 30.0 s |
| Sustained decode | 64K | 4 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 8 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 16 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 1 | Valid | 43.0 | 43.0 | 756 ms | 23.2 ms | 1.0 | 0 | 1,291 | 30.0 s |
| Sustained decode | 123K | 2 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 4 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 8 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 16 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 123K | 128 | Over capacity | — | — | — | — | — | — | — | — |
Over capacity: not run because this many requests at this context would exceed the server's KV cache.