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164-java-profiling-verify

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Java Profiling Workflow / Step 4 / Verify results

Java性能分析工作流 / 步骤4 / 验证结果

Verify performance optimizations through rigorous before/after comparison: ensure baseline and post-refactoring profiling data use identical test conditions, generate post-refactoring reports, compare metrics (memory, CPU, GC, threading), perform side-by-side flamegraph analysis, document findings in profiling-comparison-analysis-YYYYMMDD.md and profiling-final-results-YYYYMMDD.md, and validate success criteria.
What is covered in this Skill?
  • Pre-refactoring baseline: run profiler with same load before changes
  • Post-refactoring: generate new reports with identical test conditions
  • Comparison: memory (leaks, allocations, GC), CPU (hotspots, contention), visual flamegraph comparison
  • Documentation: profiler/docs/profiling-comparison-analysis-YYYYMMDD.md, profiler/docs/profiling-final-results-YYYYMMDD.md
  • File naming: baseline/after suffixes, timestamp-based organization
  • Validation: verify reports exist, compare metrics, identify regressions
Scope: Identical test conditions are critical. Document test scenarios. Validate application runs with refactored code before generating new reports.
通过严谨的前后对比来验证性能优化：确保基准线和重构后的性能分析数据使用完全相同的测试条件，生成重构后的报告，对比各项指标（内存、CPU、GC、线程），执行并排火焰图分析，将发现记录在profiling-comparison-analysis-YYYYMMDD.md和profiling-final-results-YYYYMMDD.md文档中，并验证成功标准。
本Skill涵盖哪些内容？
  • 重构前基准线：在代码变更前，使用相同负载运行性能分析器
  • 重构后：在完全相同的测试条件下生成新报告
  • 对比：内存（泄漏、分配、GC）、CPU（热点、竞争）、可视化火焰图对比
  • 文档：profiler/docs/profiling-comparison-analysis-YYYYMMDD.md、profiler/docs/profiling-final-results-YYYYMMDD.md
  • 文件命名：使用baseline/after后缀，基于时间戳进行组织
  • 验证：确认报告存在、对比指标、识别性能回归
范围： 相同的测试条件至关重要。需记录测试场景。在生成新报告前，先验证重构后的代码能正常运行应用。

Constraints

约束条件

Use identical test conditions between baseline and post-refactoring. Verify both report sets are complete. Document test scenarios.
  • CONSISTENCY: Use identical test conditions and load patterns for baseline and post-refactoring
  • VALIDATE: Ensure both baseline and post-refactoring reports exist and are non-empty before comparison
  • DOCUMENT: Record test scenarios and load patterns for reproduction
  • BEFORE APPLYING: Read the reference for comparison templates and validation steps
基准线和重构后的测试需使用完全相同的条件。验证两组报告均完整。记录测试场景。
  • 一致性：基准线和重构后使用完全相同的测试条件和负载模式
  • 验证：在对比前，确保基准线和重构后的报告均存在且非空
  • 文档记录：记录测试场景和负载模式以便复现
  • 使用前：阅读对比模板和验证步骤的参考文档

When to use this skill

何时使用本Skill

  • Verify performance fix
  • Verify the performance
  • Verify the memory
  • Verify the threading
  • Verify the GC
  • Verify the profiling
  • Verify the profiling
  • Performance benchmark
  • 验证性能修复效果
  • 验证性能表现
  • 验证内存状态
  • 验证线程情况
  • 验证GC性能
  • 验证性能分析结果
  • 性能基准测试

Reference

参考资料

For detailed guidance, examples, and constraints, see references/164-java-profiling-verify.md.
如需详细指南、示例和约束条件，请查看references/164-java-profiling-verify.md。