Benchmark: llama.cpp batch/ubatch impacts on performance
PhilippeEiffel · reddit · 2026-08-24
A benchmark test of DeepSeek v4 Flash on a DGX Spark machine analyzing the impact of batch and ubatch parameters on Pre-filling (PP) and Token Generation (TG) speeds. Results show that increasing ubatch improves PP speed but unexpectedly decreases TG speed, prompting questions about ubatch behavior in the code.
More from Infra
- SK Hynix ties new US plant to looser chip equipment exports to China, sources say — pstAsiatech · 2026-10-15
- Perplexity's new embedding models: index with a 9B model, search with 0.6B — antoine_chaffin · 2026-10-15
- Unsloth ships GGUF quants for Nemotron 3.5: Bolt-74B runs in 24GB RAM — danielhanchen · 2026-10-15
- vLLM-Omni ships Day-0 serving for FLUX 3 Image Klein with BF16, FP8, NVFP4 support — vllm_project · 2026-10-15
- NVIDIA's Nemotron 3.5 Super VL lands training and inference support on Applied Compute — ypatil125 · 2026-10-15
- CoreWeave bond yield tops 16% as loans outlast customer contracts by ~2 years — tengyanAI · 2026-10-15