Gtrap – Gprof Treemap Viewer

Gtrap is a lightweight, client‑side treemap viewer for GNU gprof. Drop your profile.txt into the browser to explore runtime hotspots, and call hierarchies. No installs needed.

• Project: https://github.com/41pha1/gtrap
• Issues: https://github.com/41pha1/gtrap/issues
• Gprof manual: https://ftp.gnu.org/old-gnu/Manuals/gprof-2.9.1/html_mono/gprof.html

What it does

• Parses gprof text output in the browser and renders an interactive, zoomable treemap where area ≈ runtime.
• Clean labels, ancestor highlighting, breadcrumb navigation, and tooltips with full signatures.
• Filters by depth and minimum percent.

UI controls

• Max depth: limit layout depth
• Min %: filter nodes below this threshold
• Color by: percent / depth / hierarchy
• Palette: switch color scales
• Zoom: click to drill in, Esc/▲ to go up