KDAB/hotspot
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The Linux perf GUI for performance analysis.
16 mentions on Hacker News by 15 people: 3 stories, 13 comments · first 2017-09-29 · latest 2025-06-20
20082026
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…don't know, i haven't tried it) i think it might actually be a NixOS issue and not a KDE issue. [0] https://github.com/KDAB/hotspot/releases/tag/continuous [1] EDIT: i checked with --appimage-extract, it contains pretty much everything
comment by badsectoracula · 2025-06-20 · in Open source can't coordinate? -
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Hotspot: Linux `perf` GUI for performance analysisstory by jez · 2025-05-19 · 17 comments
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…* KHelpCenter - KDE GUI alternative interface for manpages * Hotspot - GUI for perf profiler - https://github.com/KDAB/hotspot
comment by bookwormtrixie · 2025-04-11 · in Ask HN: What's the Best Open Source Tool You've Discovered Recently? -
For better convenience there is now https://github.com/KDAB/hotspot to render the flame graph from your perf data. You can also use online https://profiler.firefox.com/ .
comment by mordae · 2024-12-17 · in Make your QEMU faster (2022) -
…tools. It is nowadays relatively easy to also look at off-CPU time when profiling with perf (e.g. https://github.com/KDAB/hotspot/?tab=readme-ov-file#off-cpu- ...). I think, firstly, that spending 15s trying the CTRL-c approach is a…
comment by lelanthran · 2024-09-03 · in Profiling with Ctrl-C -
…tools. It is nowadays relatively easy to also look at off-CPU time when profiling with perf (e.g. https://github.com/KDAB/hotspot/?tab=readme-ov-file#off-cpu-... ). The idea is to use sampling for the on-CPU periods and then combine that…
comment by milianw · 2024-09-03 · in Profiling with Ctrl-C -
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Hotspot: A GUI for the Linux perf profilerstory by pkkm · 2023-08-12 · 0 comments
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…[2]. "perf record" coupled with Hotspot forms a very smooth edit-compile-profile cycle. [1] https://github.com/KDAB/hotspot [2] https://github.com/KDAB/hotspot#off-cpu-profiling
comment by themulticaster · 2023-03-01 · in “Clean” code, horrible performance -
Every Linux C/C++/Rust developer should know about https://github.com/KDAB/hotspot . It's convenient and fast. I use it for Rust all the time, and it provides all of these features on the back of regular old `perf`.
comment by mullr · 2022-12-09 · in Data-driven performance optimization with Rust and Miri -
…perf-record(1) and inspect them using perf-report(1) or - my personal favorite - the Hotspot tool ( https://github.com/KDAB/hotspot ). Sorry for hijacking the discussion a little, but I think perf is an awesome little tool and not as…
comment by themulticaster · 2022-07-27 · in Twenty years of Valgrind -
…[1] https://github.com/brendangregg/FlameGraph [2] https://github.com/brendangregg/HeatMap [3] https://github.com/KDAB/hotspot [4] https://www.poirrier.ca/hperf/
comment by bd6a28 · 2022-03-19 · in Linux Perf Examples -
…--switch-events --sample-cpu -p $(pidof my-go-process) And then view the results in hotspot ( https://github.com/KDAB/hotspot ). I played a little with off-cpu profiling (-e sched:sched_switch), but Go kind of outsmarts that by doing its…
comment by jrockway · 2021-05-11 · in Pprof++: A Go Profiler with Hardware Performance Monitoring -
…Hotspot as a way to visualize perf results, which vanilla perf is unfortunately a bit lacking in: https://github.com/KDAB/hotspot
comment by atq2119 · 2019-11-11 · in Evaluation of CPU profiling tools: gperftools, Valgrind and gprof (2015) -
perf has a nice UI nowadays, hotspot : https://github.com/KDAB/hotspot
comment by jcelerier · 2018-08-17 · in 24-core CPU and I can’t type an email -
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Hotspot – the Linux perf GUI for performance analysisstory by xstartup · 2018-02-24 · 0 comments
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See also: https://github.com/KDAB/hotspot You can now also download an AppImage, so no need to compile anything! Feedback welcome :)
comment by mwolff · 2017-09-29 · in Hotspot (Linux perf GUI) v1.1.0 adds timeline and recording features