discussionDeveloper Tools · AI & Machine LearningsituationalLLMModel ServingPerformanceOpen Source

LLM Inference Frameworks Leave Most GPU Bandwidth Untapped

Conventional LLM inference stacks dispatch one kernel per operation, resulting in hundreds of kernel launches per token, repeated CPU round-trips, and significant memory re-fetching — leaving the majority of available GPU compute and bandwidth unused. This affects developers and researchers running local or self-hosted inference on consumer and prosumer NVIDIA hardware. The gap between theoretical hardware capability and realized throughput is large, but this post is primarily a project announcement rather than a problem statement from users experiencing pain.

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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.