@grafana/flamegraph

Grafana Flamegraph component

@grafana/flamegraph is currently in BETA.

This is a Flamegraph component that is used in Grafana and Pyroscope web app to display profiles.

Usage

Currently this library exposes single component Flamegraph that renders whole visualization used for profiling which contains a header, a table representation of the data and a flamegraph.

import { Flamegraph } from '@grafana/flamegraph';

<FlameGraph
  getTheme={() => createTheme({ colors: { mode: 'dark' } })}
  data={dataFrame}
  extraHeaderElements={
    <Button onClick={() => {}} variant="secondary">
      Download
    />
  }
  stickyHeader
  vertical
/>

Props

Name	Type	Description
data	DataFrame	DataFrame with the profile data. Optional, if missing or empty the flamegraph is not rendered
stickyHeader	boolean	Whether the header should be sticky and be always visible on the top when scrolling.
getTheme	() => GrafanaTheme2	Provides a theme for the visualization on which colors and some sizes are based.
onTableSymbolClick	(symbol: string) => void	Interaction hook that can be used to report on the interaction. Fires when user click on a name in the table.
onViewSelected	(view: string) => void	Interaction hook that can be used to report on the interaction. Fires when user changes the view to show (table/graph/both)
onTextAlignSelected	(align: string) => void	Interaction hook that can be used to report on the interaction. Fires when user changes the text align.
onTableSort	(sort: string) => void	Interaction hook that can be used to report on the interaction. Fires when user changes the teble sorting.
extraHeaderElements	React.ReactNode	Elements that will be shown in the header on the right side of the header buttons. Useful for additional functionality.
vertical	boolean	If true the flamegraph will be rendered on top of the table.
keepFocusOnDataChange	boolean	If true any focused block will stay focused when the profile data changes. Same for the sandwich view.

DataFrame schema

The dataFrame needs to have the following fields:

Name	Type	Description
name	string	The name of the node.
labels	string[]	The labels of the node.
level	number	The nesting level of the node.
value	number	The total value of the node.
self	number	The self value of the node.
valueRight	number	The total value of the node in the right profile. Optional, if present will show a diff version of the flamegraph.
selfRight	number	The self value of the node in the right profile. Optional, if present will show a diff version of the flamegraph.