Performance Benchmarking and Scalability Validation

Objective

Establish performance benchmarks and validate scalability characteristics of OSSA specification, validators, and tooling to ensure production-grade performance for enterprise adoption.

Scope

Performance testing covering:

1. Schema Validation Performance - Validation speed for various manifest sizes
2. Parser Performance - YAML/JSON parsing benchmarks
3. Tooling Performance - CLI command execution times
4. Registry Performance - API throughput and latency
5. Scalability Testing - Large-scale agent deployments (1000+ agents)

Performance Targets

Schema Validation

• Small manifests (<1KB): <1ms validation time
• Medium manifests (1-10KB): <10ms validation time
• Large manifests (10-100KB): <100ms validation time
• Memory usage: <10MB per validation
• Throughput: >1000 validations/second

CLI Tools

• Startup time: <100ms cold start
• Validation command: <500ms for typical manifest
• Code generation: <2s for TypeScript/Python clients
• Documentation generation: <5s for full docs

Registry API

• List agents: <100ms p95 latency
• Get agent details: <50ms p95 latency
• Register agent: <200ms p95 latency
• Search agents: <150ms p95 latency
• Throughput: >100 req/sec per instance

Benchmarking Approach

Validation Performance

// benchmarks/validation-performance.bench.ts
import { describe, bench } from 'vitest';
import Ajv from 'ajv';
import * as fs from 'fs';

const schema = JSON.parse(fs.readFileSync('spec/ossa-1.0.schema.json', 'utf-8'));
const ajv = new Ajv();
const validate = ajv.compile(schema);

describe('Validation Performance', () => {
  bench('validate small manifest (1KB)', () => {
    const manifest = generateManifest('small');
    validate(manifest);
  });

  bench('validate medium manifest (10KB)', () => {
    const manifest = generateManifest('medium');
    validate(manifest);
  });

  bench('validate large manifest (100KB)', () => {
    const manifest = generateManifest('large');
    validate(manifest);
  });

  bench('validate 100 manifests in sequence', () => {
    for (let i = 0; i < 100; i++) {
      const manifest = generateManifest('small');
      validate(manifest);
    }
  });
});

describe('Parser Performance', () => {
  bench('parse YAML manifest', () => {
    const yaml = fs.readFileSync('spec/examples/compliance-agent.yml', 'utf-8');
    YAML.parse(yaml);
  });

  bench('parse JSON manifest', () => {
    const json = fs.readFileSync('spec/examples/compliance-agent.json', 'utf-8');
    JSON.parse(json);
  });
});

function generateManifest(size: 'small' | 'medium' | 'large') {
  const baseManifest = {
    ossaVersion: '1.0',
    agent: {
      id: 'perf-test',
      name: 'Performance Test Agent',
      version: '1.0.0',
      role: 'custom',
      runtime: { type: 'docker', image: 'test:1.0' },
      capabilities: []
    }
  };

  const capabilityCounts = { small: 5, medium: 50, large: 500 };
  const count = capabilityCounts[size];

  for (let i = 0; i < count; i++) {
    baseManifest.agent.capabilities.push({
      name: `capability_${i}`,
      description: `Test capability ${i}`,
      input_schema: {
        type: 'object',
        properties: {
          param1: { type: 'string' },
          param2: { type: 'number' }
        }
      },
      output_schema: {
        type: 'object',
        properties: {
          result: { type: 'string' }
        }
      }
    });
  }

  return baseManifest;
}

CLI Performance

#!/bin/bash
# benchmarks/cli-performance.sh

echo "=== CLI Performance Benchmarks ==="

# Startup time
echo "Cold start time:"
time ossa --version

# Validation performance
echo "\nValidation performance:"
hyperfine --warmup 3 'ossa validate spec/examples/compliance-agent.yml'

# Code generation performance
echo "\nCode generation performance:"
hyperfine --warmup 3 'ossa generate typescript spec/examples/compliance-agent.yml'

# Documentation generation
echo "\nDocumentation generation:"
hyperfine --warmup 3 'ossa generate docs spec/examples/'

Load Testing (Registry API)

# Use k6 for load testing
k6 run --vus 100 --duration 30s benchmarks/registry-load-test.js

// benchmarks/registry-load-test.js
import http from 'k6/http';
import { check, sleep } from 'k6';

export let options = {
  stages: [
    { duration: '2m', target: 100 },  // Ramp up to 100 users
    { duration: '5m', target: 100 },  // Stay at 100 users
    { duration: '2m', target: 200 },  // Ramp up to 200 users
    { duration: '5m', target: 200 },  // Stay at 200 users
    { duration: '2m', target: 0 },    // Ramp down
  ],
  thresholds: {
    http_req_duration: ['p(95)<200'],  // 95% of requests under 200ms
    http_req_failed: ['rate<0.01'],     // Less than 1% error rate
  },
};

export default function() {
  // List agents
  let listRes = http.get('http://registry.ossa.ai/api/v1/agents');
  check(listRes, {
    'list agents status 200': (r) => r.status === 200,
    'list agents duration < 100ms': (r) => r.timings.duration < 100,
  });

  // Get agent details
  let getRes = http.get('http://registry.ossa.ai/api/v1/agents/compliance-scanner');
  check(getRes, {
    'get agent status 200': (r) => r.status === 200,
    'get agent duration < 50ms': (r) => r.timings.duration < 50,
  });

  // Search agents
  let searchRes = http.get('http://registry.ossa.ai/api/v1/agents?role=compliance');
  check(searchRes, {
    'search agents status 200': (r) => r.status === 200,
    'search agents duration < 150ms': (r) => r.timings.duration < 150,
  });

  sleep(1);
}

Scalability Testing (Kubernetes)

# benchmarks/k8s-scalability-test.yaml
apiVersion: batch/v1
kind: Job
metadata:
  name: ossa-scalability-test
spec:
  template:
    spec:
      containers:
      - name: agent-deployer
        image: ossa/scalability-tester:1.0
        env:
        - name: AGENT_COUNT
          value: "1000"
        - name: NAMESPACE
          value: "ossa-scale-test"
        command:
        - /bin/sh
        - -c
        - |
          for i in $(seq 1 $AGENT_COUNT); do
            cat <<EOF | kubectl apply -f -
            apiVersion: ossa.ai/v1
            kind: Agent
            metadata:
              name: test-agent-$i
              namespace: $NAMESPACE
            spec:
              ossaVersion: "1.0"
              agent:
                id: test-agent-$i
                name: "Test Agent $i"
                version: "1.0.0"
                role: custom
                runtime:
                  type: k8s
                  image: nginx:alpine
                  resources:
                    cpu: 100m
                    memory: 128Mi
                capabilities:
                  - name: test
                    description: Test capability
          EOF
          done
          
          echo "Deployed $AGENT_COUNT agents"
          echo "Measuring stabilization time..."
          time kubectl wait --for=condition=ready pod -l ossa.ai/agent -n $NAMESPACE --timeout=10m

Benchmark Results Format

# OSSA Performance Benchmarks

## Test Environment
- **Date**: 2026-01-10
- **Hardware**: AWS c5.4xlarge (16 vCPU, 32GB RAM)
- **OS**: Ubuntu 22.04 LTS
- **Node.js**: 20.11.0

## Validation Performance

| Manifest Size | Validation Time (p50) | Validation Time (p95) | Memory Usage |
|---------------|----------------------|----------------------|--------------|
| 1 KB          | 0.8 ms               | 1.2 ms               | 2 MB         |
| 10 KB         | 7.5 ms               | 9.8 ms               | 8 MB         |
| 100 KB        | 85 ms                | 98 ms                | 45 MB        |

**Throughput**: 1,250 validations/second

## CLI Performance

| Operation           | Time (p50) | Time (p95) |
|---------------------|------------|------------|
| Cold start          | 95 ms      | 120 ms     |
| Validate manifest   | 450 ms     | 580 ms     |
| Generate TypeScript | 1.8 s      | 2.2 s      |
| Generate docs       | 4.2 s      | 5.1 s      |

## Registry API Performance

| Endpoint      | p50 Latency | p95 Latency | p99 Latency | Throughput |
|---------------|-------------|-------------|-------------|------------|
| GET /agents   | 45 ms       | 85 ms       | 120 ms      | 150 req/s  |
| GET /agent/id | 25 ms       | 42 ms       | 65 ms       | 200 req/s  |
| POST /agents  | 120 ms      | 180 ms      | 250 ms      | 80 req/s   |
| GET /search   | 75 ms       | 135 ms      | 200 ms      | 120 req/s  |

## Scalability Results

- **1000 agents deployed**: 8m 30s to all ready
- **Operator CPU usage**: 450m (peak)
- **Operator memory usage**: 1.2 GB (peak)
- **etcd size**: 125 MB

Acceptance Criteria

• Comprehensive benchmark suite covering all components
• Performance targets met or documented deviations
• Load testing with 100+ concurrent users
• Scalability testing with 1000+ agents
• Memory profiling for leaks
• CPU profiling for hot paths
• Benchmark results published in docs
• Performance regression CI (track over time)
• Comparison with similar tools (OpenAPI validators, etc.)
• Optimization recommendations documented

Files to Create

• benchmarks/validation-performance.bench.ts
• benchmarks/cli-performance.sh
• benchmarks/registry-load-test.js
• benchmarks/k8s-scalability-test.yaml
• docs/performance/benchmarks.md
• docs/performance/optimization-guide.md

Tools

• Benchmarking: Vitest bench, hyperfine
• Load testing: k6, Apache Bench
• Profiling: Node.js profiler, pprof
• Monitoring: Prometheus, Grafana