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Swoole

Coroutines on an event loop, async I/O like Node.js, and no framework overhead per request. Blocking extensions stall the loop. Holds realtime connections at 20 KB each.

Trade-offs#

Axis	Score
Throughput
Tail latency
Memory
Velocity
Resilience
Operability

Frameworks#

Laravel
Symfony

Engineering terms#

Event loop
Async I/O