⚡ Bolt: Cache color map in StatusLine to prevent repeated allocations#86
⚡ Bolt: Cache color map in StatusLine to prevent repeated allocations#86
Conversation
Implement thread-safe caching of the ANSI color map at the StatusLine instance level. This prevents repeated map allocations and garbage collection overhead during concurrent plugin executions. Co-authored-by: himattm <6266621+himattm@users.noreply.github.com>
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Code Review
This pull request optimizes the StatusLine renderer by caching the ANSI color map, reducing allocations during concurrent plugin executions. It adds a colorsMap field and a thread-safe getColors getter. The review feedback points out a missing docstring for the new method and a misplaced comment for discoverBashPlugins that needs to be corrected.
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| // discoverBashPlugins discovers bash plugins once and caches them | ||
| func (sl *StatusLine) getColors() map[string]string { |
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The getColors method is missing a docstring. Additionally, the existing comment for discoverBashPlugins (currently on line 54) has become misplaced due to the insertion of this new method. Please add a proper docstring for getColors and ensure the discoverBashPlugins comment is moved back to its correct position above that method.
// getColors returns the cached color map, initializing it on first call.
func (sl *StatusLine) getColors() map[string]string {
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Closing as superseded by direct commit 42f3149 on main, which consolidated the StatusLine color-map caching optimization without the generated .jules note. |
Understood. Acknowledging that this work is now obsolete and stopping work on this task. |
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💡 What: Added
colorsMapandcolorsMapOncetoStatusLineto lazily cache the output ofcolors.ColorMap(). Updated plugin execution to use this cached map instead of repeatedly callingcolors.ColorMap(). Added a journal entry documenting this optimization pattern.🎯 Why:
colors.ColorMap()returns a new map with all ANSI color constants every time it is called. When rendering the status line, multiple plugins run concurrently, each triggering a call toColorMap(). This caused unnecessary and repeated map allocations and increased garbage collection overhead during a performance-sensitive operation (rendering the prompt).📊 Impact: Reduces memory allocations per status line render significantly (scaling with the number of configured plugins). Prevents unnecessary garbage collection churn, keeping the prompt rendering latency as low as possible.
🔬 Measurement: Benchmarks or memory profiles (e.g.,
go test -bench . -benchmem) comparing plugin execution before and after this change will show fewer allocations (allocs/opandB/op). All tests continue to pass seamlessly.PR created automatically by Jules for task 1414732142255488887 started by @himattm