GitStress
v0.12.0
GitHub1
SECTION 6.0 // CONCURRENCY SATURATION DRAG RACE

Framework Concurrency Duel

Head-to-head architectural saturation comparison. Compare any two repositories side-by-side to discover which codebase chokes first under concurrent load.

FEATURED DUELS:FastAPI vs Express (Python vs Node)Gin vs Axum (Go vs Rust)tkngate vs nginx (Proxy Race)cal.com vs posthog (Prisma vs Django)tkngate vs msh (Go Proxy vs Go Mesh)
SIMULTANEOUS LOAD INJECTION HAMMERSimulating concurrent HTTP clients against both architectures
350 CONCURRENT CLIENTS
50 conns500 (Moderate)1,500 (Heavy)2,500 (Spike)4,000 (Saturation)
[HEADROOM CHAMPION]
tokio-rs/axum holds +137.1x more concurrent load than gin-gonic/gin before socket exhaustion.
Post Duel to X ↗
CONTENDER A

gin-gonic/gin

Go High-Concurrency Service
GRADEREFUSED
SATURATION CEILING: 62 CONCURRENT[COLLAPSED: 429/504]
EST. P99 LATENCY:8500 ms
BOTTLENECK SYMBOL:REFUSED — NO RUNTIME GRAPH
PRIMARY WEAKNESS:Scanned files do not expose server entrypoints, container limits, or database connection pools. GitStress halts to prevent hallucinating fake queues.
Inspect Full Telemetry Dossier ↗
VS
CONTENDER B

tokio-rs/axum

Microservice / Backend
GRADEA+
SATURATION CEILING: 8500 CONCURRENT[NOMINAL]
EST. P99 LATENCY:26 ms
BOTTLENECK SYMBOL:axum::serve (tokio::net::TcpListener)
PRIMARY WEAKNESS:Non-blocking Tokio async runtime handles 8,500+ concurrent sockets; bounded by OS file descriptor limits (nofile)
Inspect Full Telemetry Dossier ↗