gh-140677 :Add heatmap visualization to Tachyon sampling profiler #140680
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pablogsal force-pushed the heatmap branch 2 times, most recently from b1d5307 to 9ee2b80 Compare 
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| CC @ambv |
Introduce a new --heatmap output format that provides line-by-line execution visualization. The heatmap shows: - Color-coded execution intensity for each line (cold → warm → hot → very hot) - Inline sample counts and percentages per line - Per-file statistics (total samples, hottest line) - Interactive call graph navigation with caller/callee buttons - Module type badges (stdlib, site-packages, project code) Unlike flamegraphs which show call stacks and time distribution, heatmaps excel at identifying hot code paths within files, understanding line-level execution patterns, and navigating through call relationships.
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savannahostrowski left a comment
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Okay, this is so cool! I left a couple of comments, but also wanted to mention that I really loved that you added a minimap to show hotspots and the permalinking on line click; so nice for jumping around and sharing results.
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Introduce a new --heatmap output format that provides line-by-line
execution visualization. The heatmap shows:
Unlike flamegraphs which show call stacks and time distribution, heatmaps
excel at identifying hot code paths within files, understanding line-level
execution patterns, and navigating through call relationships.