jlfwong/speedscope
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Add support for .cpuprofile format

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This commit is contained in:
Jamie Wong 2018-01-07 19:50:27 -08:00
parent ea2ab1b062
commit 464824f8d8
2 changed files with 17 additions and 6 deletions
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17
application.tsx
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@ -4,7 +4,7 @@ import {ReloadableComponent} from './reloadable'
import {importFromBGFlameGraph} from './import/bg-flamegraph'
import {importFromStackprof} from './import/stackprof'
import {importFromChrome} from './import/chrome'
import {importFromChromeTimeline, importFromChromeCPUProfile} from './import/chrome'
import {Profile, Frame} from './profile'
import {Flamechart} from './flamechart'
@ -81,7 +81,7 @@ export class Application extends ReloadableComponent<{}, ApplicationState> {
importJSON(parsed: any): Profile {
if (Array.isArray(parsed) && parsed[parsed.length - 1].name === "CpuProfile") {
return importFromChrome(parsed)
return importFromChromeTimeline(parsed)
} else {
return importFromStackprof(parsed)
}
@ -89,7 +89,11 @@ export class Application extends ReloadableComponent<{}, ApplicationState> {
loadFromString(fileName: string, contents: string) {
console.time('import')
const profile = fileName.endsWith('json') ? this.importJSON(JSON.parse(contents)) : importFromBGFlameGraph(contents)
console.log(fileName)
const profile =
fileName.endsWith('json') ? this.importJSON(JSON.parse(contents))
: fileName.endsWith('cpuprofile') ? importFromChromeCPUProfile(JSON.parse(contents))
: importFromBGFlameGraph(contents)
profile.setName(fileName)
document.title = `${fileName} - speedscope`
@ -174,7 +178,9 @@ export class Application extends ReloadableComponent<{}, ApplicationState> {
renderLanding() {
return <div className={css(style.landingContainer)}>
<div className={css(style.landingMessage)}>
<p className={css(style.landingP)}>👋 Hi there! Welcome to 🔬speedscope.</p>
<p className={css(style.landingP)}>👋 Hi there! Welcome to 🔬speedscope, an interactive{' '}
<a className={css(style.link)} href="http://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html">flamegraph</a> visualizer.
Use it to help you make your software faster.</p>
<p className={css(style.landingP)}>Drag and drop a profile file onto this window to get started,
click the big blue button below to browse for a profile to explore, or{' '}
<a className={css(style.link)} onClick={this.loadExample}>click here</a>{' '}
@ -221,7 +227,8 @@ const style = StyleSheet.create({
display: 'flex',
flexDirection: 'column',
position: 'relative',
fontFamily: FontFamily.MONOSPACE
fontFamily: FontFamily.MONOSPACE,
lineHeight: '20px'
},
landingContainer: {
display: 'flex',

6
import/chrome.ts
View File

@ -41,9 +41,13 @@ interface CPUProfile {
timeDeltas: number[]
}
export function importFromChrome(events: TimelineEvent[]) {
export function importFromChromeTimeline(events: TimelineEvent[]) {
const profileEvent = events[events.length - 1]
const chromeProfile = profileEvent.args.data.cpuProfile as CPUProfile
return importFromChromeCPUProfile(chromeProfile)
}
export function importFromChromeCPUProfile(chromeProfile: CPUProfile) {
const profile = new Profile(chromeProfile.endTime - chromeProfile.startTime)
const nodeById = new Map<number, CPUProfileNode>()