Hotspot: A slick GUI for Linux perf performance analysis

KDAB has developed Hotspot, a standalone GUI for performance data analysis, initially focusing on visualizing Linux perf data in a KCachegrind-like interface. It offers graphical visualization, timeline filtering, and the ability to launch perf to profile applications. Available as an AppImage for easy cross-distribution use, or via package managers (AUR, Debian, Ubuntu, Fedora), Hotspot allows users to analyze on-CPU and off-CPU time, exporting data for sharing. While not yet feature-complete, Hotspot simplifies Linux performance analysis.