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Spring WebFlux

Very high concurrency on one loop per process, and 20% slower to build and debug. A blocking call stalls the loop, and the JVM still warms up. 400 MB.

Trade-offs#

Axis	Score
Throughput
Tail latency
Memory
Velocity
Resilience
Operability

Frameworks#

Spring Boot
Quarkus

Engineering terms#

Event loop
JIT warmup
GC pause