Performance Baseline Capturer Skill

Captures comprehensive performance baselines before migration to enable post-migration regression comparison and SLA verification.

Purpose

Enable performance benchmarking for:

• Response time measurement
• Throughput baseline
• Resource utilization tracking
• Load test execution
• Percentile calculation

Capabilities

1. Response Time Measurement

• Capture response times
• Measure latency percentiles
• Track by endpoint
• Document SLA targets

2. Throughput Baseline

• Measure requests per second
• Track concurrent users
• Document peak capacity
• Establish limits

3. Resource Utilization Tracking

• Monitor CPU usage
• Track memory consumption
• Measure disk I/O
• Record network usage

4. Load Test Execution

• Run baseline load tests
• Execute stress tests
• Perform soak tests
• Document results

5. Percentile Calculation

• Calculate P50/P90/P95/P99
• Track distribution
• Identify outliers
• Set thresholds

6. Regression Threshold Setting

• Define acceptable ranges
• Set alert thresholds
• Document tolerances
• Create comparison criteria

Tool Integrations

Tool	Purpose	Integration Method
JMeter	Load testing	CLI
Gatling	Performance testing	CLI
k6	Modern load testing	CLI
Locust	Python load testing	CLI
Artillery	Node.js testing	CLI
wrk	HTTP benchmarking	CLI

Output Schema

{
  "baselineId": "string",
  "timestamp": "ISO8601",
  "environment": {
    "name": "string",
    "resources": {}
  },
  "metrics": {
    "responseTime": {
      "p50": "number",
      "p90": "number",
      "p95": "number",
      "p99": "number",
      "mean": "number"
    },
    "throughput": {
      "requestsPerSecond": "number",
      "peakRps": "number",
      "concurrentUsers": "number"
    },
    "resources": {
      "cpu": {},
      "memory": {},
      "disk": {},
      "network": {}
    }
  },
  "thresholds": {
    "responseTime": {},
    "throughput": {},
    "errors": {}
  }
}

Integration with Migration Processes

• migration-testing-strategy: Baseline establishment
• performance-optimization-migration: Performance tracking

Related Skills

• migration-validator: Post-migration comparison
• test-coverage-analyzer: Test planning

Related Agents

• performance-validation-agent: Performance verification
• migration-testing-strategist: Test planning