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@kylincloud/flamegraph-core

v0.37.2

Published

KylinCloud flamegraph core engine (framework-agnostic)

Readme

@kylincloud/flamegraph-core

KylinCloud 火焰图渲染核心引擎(框架无关),提供数据模型、解码、转换与渲染辅助能力。

适用场景

  • 非 React / Vue 场景的 Profile 数据处理
  • 自定义渲染管线或服务端预处理
  • Profile 转换、Diff、导出等工具能力

该包通常由 @kylincloud/flamegraph / @kylincloud/flamegraph-vue 间接依赖,业务侧一般不需要单独安装。

安装(需要时)

# npm
npm install @kylincloud/flamegraph-core

# pnpm
pnpm add @kylincloud/flamegraph-core

快速上手

import { normalize, diffTwoProfiles } from '@kylincloud/flamegraph-core'

// 统一成可消费的 Flamebearer 结构(自动解码 delta levels)
const flamebearer = normalize({ profile })

// Diff 两份 profile(返回 double 格式)
const diffProfile = diffTwoProfiles(leftProfile, rightProfile)

数据格式

interface Profile {
  version: number
  flamebearer: {
    names: string[]
    levels: number[][]
    numTicks: number
    maxSelf: number
    sampleRate?: number
    units?: string
    leftTicks?: number
    rightTicks?: number
  }
  metadata: {
    appName?: string
    spyName?: string
    format: 'single' | 'double'
    sampleRate: number
    units: string
  }
}

数据格式说明:

  • 单视图(single):每 4 个数字为一组 [offset, total, self, nameIndex]
  • 差分视图(double):每 7 个数字为一组 [leftOffset, leftTotal, leftSelf, rightOffset, rightTotal, rightSelf, nameIndex]