Performance

Deep dive into cache coherence and the MESI protocol on a 256-core Intel Granite Rapids system: microbenchmarks for ping-pong latency, false sharing, atomic contention, and lock primitives.

What really happens in the kernel when you run perf stat or perf record.

torch.profiler integrates PyTorch operator attribution, optional source stacks, and CUDA activity in one trace. Its numbers mean what you think only if you control the capture window, the labels and the host syncs.