RTX 3060 Tests: GPU Memory Availability Alters LLM Inference Engine Execution

Abhishekcur · x · 2026-08-11

While running benchmarks on an RTX 3060 using sglang with the qwen3-4b model, developer Abhishek discovered that GPU memory availability directly influences how the inference engine executes the model.

By tweaking launch parameters like --mem-fraction-static 0.75, he observed that the underlying execution logic changes based on the remaining GPU memory. This highlights that memory allocation strategies are highly critical when optimizing local LLM inference.

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