[BENCHMARKS & SAMPLING]

PERFORMANCE BENCHMARKS & MEMORY METRICS

Empirical memory deltas (heapUsed, RSS, ArrayBuffers) measured across 3 passes per payload size.

Analytical Conclusion: The measurements support sublinear memory growth and demonstrate that MailPort does not buffer the complete attachment in memory under the tested conditions.

Note: Throughput figures represent local synthetic loopback stream processing. Real-world SMTP delivery speed depends on remote server socket capacity and network latency.

MULTI-PASS STREAMING MIME BENCHMARK

TARGET PAYLOAD EMITTED PAYLOAD MEDIAN THROUGHPUT MEDIAN HEAP Δ WORST HEAP Δ MEDIAN RSS Δ MEDIAN ARRAYBUFFER Δ
10 MB 13.7 MB 540.1 MB/s 15.7 MB 17.8 MB 14.6 MB 10.8 MB
100 MB 136.8 MB 589.4 MB/s 48.1 MB 74.6 MB 68.2 MB 34.9 MB
500 MB 684.2 MB 597.6 MB/s 74.6 MB 74.6 MB 70.7 MB 49.7 MB

BENCHMARK ENVIRONMENT & METHODOLOGY