Why it matters

Profiling reveals hidden inefficiencies. Skipping profiling = flying blind.

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The architecture

Capture trace; view timeline; identify slow kernels.

Compare across configs.

Diff before/after.

LLM profiling flowCapture traceNsight, torchView timelineChrome, PerfettoIdentifyslow kernel, gapNsight Systems + PyTorch Profiler is the standard combo
LLM profiling flow.
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How it works end to end

Nsight Systems for GPU.

torch.profiler for framework.

Chrome traces for viewer.