llamaperf

Qwen3.8 27B

on NVIDIA V100 32GB · llama.cpp · 131,072 ctx

NVIDIA hardware
Sep 29, 2026
Throughput
33.4 t/s gen · 826.0 tokens/s prompt processing (prefill)Prompt processing measures input prefill speed; it does not tell you the time to first token.
Quant
UD-Q4_K_XL (GGUF)
System RAM
32 GB
VRAM reported
32 GB

Summary

User reports Qwen3.8-27B at 33.41 tok/s generation and 826.03 tok/s prefill on a single Tesla V100 32GB. Setup is llama.cpp with UD-Q4_K_XL GGUF at 131,072 context; generation falls to 27.95 tok/s at 32k depth and 15.84 tok/s at 131k depth. Peak VRAM was 25,264 MiB of 32,768 MiB. KV cache quantization (-ctk q8_0 -ctv q8_0) silently fell back to CPU with 0% GPU utilization; CUDA 13 dropped Volta support.