Speed test matrix
LFM2.5-230M on RTX PRO 6000 Blackwell Server Edition 96GB
sglang · 0.5.6.post3.dev9265+g05c584c44 · BF165 contexts (8K–120K) × 8 concurrency levels (1–128) · prefill at 8K, 16K, 32K, 64K, 120K, 125K
Hardware
- Type
- Discrete GPU
- GPU
- RTX PRO 6000 Blackwell Server Edition
- VRAM
- 96 GB
- OS
- linux
Engine
- Engine
- sglang
- Version
- 0.5.6.post3.dev9265+g05c584c44
- Quantization
- BF16
- Backend
- cuda
- Repository
- github.com/sgl-project/sglang
- Build
- cuda-13.2
- Commit
05c584c44fb0
Run
- Served model
- lfm
- Revision
- main
- Benchmark tool
- llm-inference-bench v0.6.2
- Decode test
- Fixed duration
- Prefill mode
- Measured during decode warm-up
- Time per measurement
- 30 s
- Max output
- 4,096 tokens
Launch command
env SGLANG_ALLOW_OVERWRITE_LONGER_CONTEXT_LEN=1 "$HOME/env_rtxpro6k-liquidai-sglang/bin/sglang" serve --model-path LiquidAI/LFM2.5-230M --served-model-name lfm --trust-remote-code --tp 1 --tool-call-parser lfm2 --context-length 128000 --mem-fraction-static 0.79 --enable-metrics --host 0.0.0.0 --port 8000 --api-key <redacted>
Prefill
prompt tok/s by context length8K context181.8K45 ms TTFT
16K context223.6K73 ms TTFT
32K context209.7K154 ms TTFT
64K context172.1K375 ms TTFT
120K context125.9K959 ms TTFT
125K context119.4K1,053 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 | Looped | Looped | Looped | Looped | Looped | Looped | Looped | Looped |
| 16K | Looped | Looped | Looped | Looped | Looped | Looped | Looped | Looped |
| 32K | Looped | Looped | Looped | Looped | Looped | Looped | Looped | Over capacity |
| 64K | Looped | Looped | Looped | Looped | Looped | Looped | Over capacity | Over capacity |
| 120K | Looped | Looped | Looped | Looped | Looped | Over capacity | Over capacity | Over capacity |
Looped: the model kept repeating the same text, so the benchmark discarded this measurement. Over capacity: not run because this many requests at this context would exceed the server's KV cache.
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 | 181.8K | — | 45 ms | — | — | 1 | — | — |
| Prefill | 16K | 1 | Valid | 223.6K | — | 73 ms | — | — | 1 | — | — |
| Prefill | 32K | 1 | Valid | 209.7K | — | 154 ms | — | — | 1 | — | — |
| Prefill | 64K | 1 | Valid | 172.1K | — | 375 ms | — | — | 1 | — | — |
| Prefill | 120K | 1 | Valid | 125.9K | — | 959 ms | — | — | 1 | — | — |
| Prefill | 125K | 1 | Valid | 119.4K | — | 1,053 ms | — | — | 1 | — | — |
| Sustained decode | 8K | 1 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 2 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 4 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 8 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 16 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 32 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 64 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 8K | 128 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 1 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 2 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 4 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 8 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 16 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 32 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 64 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 16K | 128 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 1 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 2 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 4 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 8 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 16 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 32 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 64 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 32K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 1 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 2 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 4 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 8 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 16 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 32 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 64K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 64K | 128 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 120K | 1 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 120K | 2 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 120K | 4 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 120K | 8 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 120K | 16 | Looped | — | — | — | — | — | 0 | 0 | — |
| Sustained decode | 120K | 32 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 120K | 64 | Over capacity | — | — | — | — | — | — | — | — |
| Sustained decode | 120K | 128 | Over capacity | — | — | — | — | — | — | — | — |
Looped: the model kept repeating the same text, so the benchmark discarded this measurement. Over capacity: not run because this many requests at this context would exceed the server's KV cache.