Windowed ACK: 88 KB/s write (96% line efficiency)#36
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Send W blocks (16 × 16KB = 256KB) back-to-back without waiting for ACKs, then read all W ACKs. Pipelines round-trips, approaching line speed. Falls back to single-block retry on failure. Benchmark (hi3516ev300, 921600 baud, 16MB): Per-packet ACK: 30 KB/s, 9.0 min (33%) Streaming: 77 KB/s, 3.5 min (84%) Windowed (W=16): 88 KB/s, 3.1 min (96%) Theoretical max: 90 KB/s, 3.0 min Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Windowed ACK write: send W blocks (16 × 16KB = 256KB) back-to-back without waiting for ACKs, then read all W ACKs. Pipelines round-trips to approach line speed. Falls back to single-block retry on failure.
Benchmark (hi3516ev300, 921600 baud, 16MB, CRC verified)
Test plan
🤖 Generated with Claude Code