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commands/performance-test.md

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+---
+description: Execute performance testing and optimization analysis
+argument-hint: [test-scenario] [load-level]
+---
+
+# Performance Testing Command
+
+Execute comprehensive performance testing and optimization analysis with detailed metrics.
+
+## Context
+- Test scenario: $1 (load|stress|spike|endurance - default: load)
+- Load level: $2 (light|medium|heavy|extreme - default: medium)
+- Application endpoints: @src/routes
+- Performance baseline: @performance-baseline.json
+
+## Performance Testing Strategy
+
+### 1. **Load Testing**
+- Simulate normal user traffic
+- Measure response times and throughput
+- Validate system stability
+- Identify performance bottlenecks
+
+### 2. **Stress Testing**
+- Push system beyond normal capacity
+- Identify breaking points
+- Test system recovery
+- Validate error handling
+
+### 3. **Performance Analysis**
+- Response time analysis
+- Throughput measurement
+- Resource utilization monitoring
+- Database performance assessment
+
+### 4. **Optimization Recommendations**
+- Performance bottleneck identification
+- Scalability improvement suggestions
+- Resource optimization strategies
+- Caching implementation guidance
+
+## Performance Metrics
+- Response time (p50, p95, p99)
+- Throughput (requests per second)
+- Error rate and availability
+- Resource utilization (CPU, memory, disk)
+
+## Expected Outcome
+- Detailed performance test report
+- Performance metrics and benchmarks
+- Bottleneck identification and analysis
+- Actionable optimization recommendations
+
+## Performance Thresholds
+- Response time: < 200ms (p95)
+- Throughput: > 1000 RPS
+- Error rate: < 0.1%
+- Availability: > 99.9%
+
+## Failure Analysis
+If performance targets not met:
+- Root cause analysis
+- Performance optimization plan
+- Infrastructure scaling recommendations
+- Code optimization suggestions