Flameshow is a terminal Flamegraph viewer.
- Renders Flamegraphs in your terminal
- Supports zooming in and displaying percentages
- Keyboard input is prioritized
- All operations can also be performed using the mouse.
- Can switch to different sample types
Flameshow is written in pure Python, so you can install via pip:
pip install flameshowBut you can also run it through nix:
nix run github:laixintao/flameshow
# Or if you want to install it imperatively:
nix profile install github:laixintao/flameshowView golang's goroutine dump:
$ curl http://localhost:9100/debug/pprof/goroutine -o goroutine.out
$ flameshow goroutine.outAfter entering the TUI, the available actions are listed on Footer:
- q for quit
- h j k l or ← ↓ ↑ → for moving around, and Enter for zoom in, then Esc for zoom out.
- You can also use a mouse, hover on a span will show it details, and click will zoom it.
As far as I know, there is no standard specification for profiles. Different languages or tools might generate varying profile formats. I'm actively working on supporting more formats. Admittedly, I might not be familiar with every tool and its specific format. So, if you'd like Flameshow to integrate with a tool you love, please feel free to reach out and submit an issue.
- Golang pprof
- Brendan Gregg's Flamegraph
- Python Austin
If you want to dive into the code and make some changes, start with:
git clone [email protected]:laixintao/flameshow.git
cd flameshow
pip install poetry
poetry installThis project is proudly powered by textual.