Suggested teardown Payment Infrastructure
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Connection Pool Size Calculator
Little's law for connection pools: concurrent connections equal peak requests per second times p99 latency in seconds. Add a safety factor, then spread the pool across pods.
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Little's law for pools. Concurrent connections equal peak RPS times p99 latency in seconds, times a safety factor, spread across pods. Defaults mirror a 10k TPS payments switch at 45ms p99.
Live result · Pool size
· Little's law, plus a safety factor.
Pool size
675
connections · RPS × p99 × safety
Pool mix
66.7%in flight
- In flight
- Spare
Concurrent in flight
450 concurrent
Little's law output
Connections / pod
17 / pod
spread across pods
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