Workflow Topology & Execution Queue Simulation
Continuous Execution Engine Active (50 RPS Peak)
Primary Bottleneck
API Rate Limits & Worker Concurrency under peak 50 RPS burst
Detected under peak load simulation
Estimated Peak Queue Time
84 ms
Req. 8 Async Worker Nodes
Total Monthly Operations
1.75M Ops
1,250 GB Data Transfer
SaaS Pricing Inflection
62.5x Cost Gap
Zapier vs n8n Self-Hosted
Monthly Cost Scaling Curves ($ USD)
Queue Latency Inflation under Concurrency (ms)
Multi-Platform Scaling Comparison Matrix
| Platform Engine | Monthly Cost | Billing Unit | Queue Latency | Operational Friction & Tradeoffs |
|---|
⚠️ Operational Scaling Diagnostic
At 250,000 monthly executions with 3 parallel branches, proprietary SaaS step-billing (Zapier/Make) creates an exponential cost penalty on iteration loops. Self-hosted runner architectures (n8n on Docker/K8s or Windmill) shift cost to fixed compute infra, unlocking sub-100ms queue handling during 50 RPS traffic bursts.