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- Date: 2026-03-27
- Platform: darwin/arm64, Apple M4, 10 cores
- Test: CPU overhead of stack vs pool buffer allocation
-
- === Raw relay (no TLS), 10 MB throughput ===
- stack_16KB: 951-961 ns/op 10,906-11,018 MB/s
- pool_16KB: 957-978 ns/op 10,724-10,952 MB/s
- pool_4KB: 953-979 ns/op 10,713-11,004 MB/s
-
- Delta: <2% — within noise
-
- === TLS relay (client→telegram direction), 10 MB ===
- stack_16KB: 1,071-1,093 ns/op 9,591-9,788 MB/s
- pool_16KB: 1,089-1,106 ns/op 9,480-9,633 MB/s
- pool_4KB: 1,083-1,092 ns/op 9,599-9,676 MB/s
-
- Delta: <2% — within noise
-
- === Isolated Pool.Get/Put overhead ===
- 7.26-7.33 ns/op (0 allocs)
-
- === Isolated stack alloc ===
- 0.25 ns/op (0 allocs)
-
- === Analysis ===
- Pool.Get+Put adds ~7 ns overhead per connection (one-time, not per read).
- For a 10 MB transfer taking ~1,000,000 ns, this is 0.0007% overhead.
- Throughput is identical within measurement noise for all three variants.
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