Single-file SLURM-oriented benchmark comparing the map-style and native
streaming loaders on single-image samples: a self-submitting serial chain
that measures peak RSS, samples/s (and decoded frames/s), fetch-vs-decode
split, shuffle randomness, and p50/p95/p99 sample latency over a fixed
wall-clock window, including a 2-node split_dataset_by_node leg.
Co-authored-by: Cursor <cursoragent@cursor.com>