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[performance] Regression in CompileSimpleWorkflow: 269% slower #38870
Description
📊 Performance Regression Detected
Benchmark: CompileSimpleWorkflow
Current Performance: 12,308,148 ns/op (12.31ms)
Historical Average: 3,332,437 ns/op (3.33ms)
Change: +269.3% slower
📈 Detailed Performance Metrics
Performance Comparison
- ns/op: 12,308,148 (was 3,332,437)
- Change: +269.3%
- Bytes/op: 6,142,837 B/op (was ~855,460 B/op)
- Allocs/op: 68,489 allocs/op (was ~5,297 allocs/op)
- Historical Data Points: 5
Baseline Targets
- Simple workflows: <100ms ✅ (still within target but 3.7× slower vs history)
💡 Recommended Actions
- Review recent changes to the compilation pipeline (regression began ~June 11)
- Run
make bench-memoryto generate memory profiles - Use
go tool pprofto identify hotspots — memory also regressed 7× (855KB → 6.1MB) - Compare with previous benchmark results:
benchstat
📋 Additional Context
- Run ID: §27426858123
- Date: 2026-06-12
- Workflow: Daily CLI Performance
- First seen: 2026-06-11 (9.72ms), worsened 2026-06-12 (12.31ms)
Automatically generated by Daily CLI Performance workflow
Generated by ⚡ Daily CLI Performance Agent · 270 AIC · ⌖ 28.9 AIC · ⊞ 23.9K · ◷
- expires on Jun 14, 2026, 8:02 AM UTC-08:00
Activity
github-actions commentedon Jun 13, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
Copilot commentedon Jun 13, 2026
The agent encountered an error and was unable to start working on this issue: Please try again later, or contact support if the problem persists. (Request id: 2000:20184F:854E493:1F3B6063:6A2C9F6D)
github-actions commentedon Jun 14, 2026
This issue was automatically closed because it expired on 2026-06-14T16:02:36.578Z.