perf(networking): optimize TCP throughput for high-speed downloads#51
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Performance improvements: - Increase TCP_RX_BUF_SIZE from 16KB to 64KB to prevent packet drops during high-throughput transfers and allow proper buffering - Advertise full TCP_RX_BUF_SIZE (65536) instead of fixed 4096 bytes in window size, allowing senders to pump data without artificial throttling - Increase TCP maximum payload from 1024 to 1460 bytes (typical MTU - headers), reducing round-trips and improving efficiency - Update buffer allocations in http_get_to_file to use TCP_MAX_PAYLOAD for consistency These changes directly address the bottlenecks causing slow wget transfers by: 1. Eliminating artificial buffer limits that cause retransmissions 2. Allowing the remote sender to transmit at line speed instead of being artificially throttled by a small window 3. Reducing protocol overhead per byte transferred The main bottleneck shifts from OS to network provider as intended.
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Performance improvements:
These changes directly address the bottlenecks causing slow wget transfers by:
The main bottleneck shifts from OS to network provider as intended.