Budget	Server (Monolith)	Database	Redis
$20/mo	1.0 vCPU, 1 GB RAM	0.5 vCPU, 512 MB	0.5 vCPU, 256 MB
$40/mo	2.0 vCPU, 2 GB RAM	1.0 vCPU, 1 GB	0.5 vCPU, 512 MB
$60/mo	3.0 vCPU, 3 GB RAM	1.5 vCPU, 1.5 GB	1.0 vCPU, 1 GB
$80/mo	4.0 vCPU, 4 GB RAM	2.0 vCPU, 2 GB	1.0 vCPU, 1 GB
$100/mo	5.0 vCPU, 6 GB RAM	2.5 vCPU, 3 GB	1.5 vCPU, 1.5 GB

Run Command

npm run profile:vertical

Options:

npm run profile:vertical -- --quick                    # 5s test per tier, 1 run
npm run profile:vertical -- --duration=15 --runs=3     # Custom duration and iterations
npm run profile:vertical -- --tiers=20,40,100          # Run specific tiers

2. Horizontal Scaling Profiler ($20 to $100)

Scales horizontally by distributing distinct microservices across dedicated server nodes.

Service Distribution by Tier

Budget	Topology	Distributed Nodes & Roles
$20/mo	1 Server	`monolith-server` (api, enricher, engine, delivery, scheduler)
$40/mo	2 Servers	`api-server-1` (api) `worker-server` (enricher, engine, delivery, scheduler)
$60/mo	3 Servers	`api-server-1` (api) `pipeline-worker` (enricher, engine, scheduler) `delivery-worker` (delivery)
$80/mo	4 Servers	`api-server-1` (api) `enricher-worker` (enricher, scheduler) `engine-worker` (engine) `delivery-worker` (delivery)
$100/mo	5 Servers	`api-server-1` (api) `api-server-2` (api) `enricher-worker` (enricher, scheduler) `engine-worker` (engine) `delivery-worker` (delivery)

Run Command

npm run profile:horizontal

Options:

npm run profile:horizontal -- --quick                  # 5s test per tier, 1 run
npm run profile:horizontal -- --duration=15 --runs=3   # Custom duration and iterations
npm run profile:horizontal -- --tiers=40,80,100        # Run specific tiers

Output Metrics

Both profilers output:

Ingestion Throughput (req/s)
Active Delivery Rate (msg/s)
Wall Drain Rate (msg/s)
API Latency (p50, p95, p99)
Delivery Latency (p50, p95, p99)
Cost Efficiency (msg/s per $)
Statistical aggregation across runs (Mean, Median, Min, Max, StdDev)
JSON export in results/