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

json
{
  "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