Add coroutine labels #258
Add coroutine labels #258
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WalkthroughThe changes in the pull request focus on the Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant GoPanicWrap
participant pprof
Caller->>GoPanicWrap: Call with ctx, wg, name, body, labels
GoPanicWrap->>pprof: Start profiling
GoPanicWrap->>body: Execute body function
body-->>GoPanicWrap: Complete execution
GoPanicWrap->>pprof: Stop profiling
GoPanicWrap->>Caller: Return
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (1)
pkg/tracing/tracing.go (1)
113-119: Document the relationship with profiling and tracingWhile the implementation is solid, consider adding documentation that explains:
- The relationship between pprof labels and Datadog tracing
- The performance implications of adding labels
- Example usage with labels
Example documentation:
// GoPanicWrap extends PanicWrap by running the body in a goroutine and // synchronizing the goroutine exit with the WaitGroup. // The body must respect cancellation of the Context. +// +// The optional labels parameter allows adding pprof labels to the goroutine +// for better identification during debugging. These labels are visible in +// goroutine dumps and profiles but do not affect Datadog tracing. +// +// Example: +// GoPanicWrap(ctx, wg, "worker", workFn, "queue", "high-priority")
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📒 Files selected for processing (1)
- pkg/tracing/tracing.go (2 hunks)
🔇 Additional comments (2)
pkg/tracing/tracing.go (2)
8-8: LGTM: Appropriate import for goroutine labelingThe addition of
runtime/pprofis well-placed and necessary for implementing goroutine labeling functionality.
122-127: 🛠️ Refactor suggestionConsider validating labels and verify performance impact
The implementation looks correct, but consider these improvements:
- Add validation for labels to ensure they come in key-value pairs:
+ if len(labels)%2 != 0 { + panic("labels must be provided in key-value pairs") + } expandedLabels := append(labels, "name", name)
- The addition of pprof labeling might have a performance impact on goroutine creation.
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@richardhuaaa with most changes |
This is a little change that makes using the Go debugger so much easier. You can identify the goroutine by its name and other additional labels.
We don't always use the tracing tool to start our goroutines, but we do the major ones. We can always expand this to other locations that would benefit from easy identification.
See attached screenshot.
Summary by CodeRabbit
New Features
GoPanicWrapfunction to accept additional profiling labels for improved performance analysis.Bug Fixes
GoPanicWrapfunction to include profiling context, ensuring more accurate performance metrics.