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feat: profiling setup

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This commit is contained in:
shirakaba
2022-12-17 17:46:31 +09:00
parent 2d0c3ff6a9
commit 40db84e653
3 changed files with 98 additions and 0 deletions
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12
apps/new/src/plugin-demos/properties.ts
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@@ -1,4 +1,5 @@
import { Button, EventData, Page, Switch, View, getViewById, Observable, Label, PropertyChangeData } from '@nativescript/core';
import { jamieProfiler } from '@nativescript/core/profiling/jamie';
export function navigatingTo(args: EventData) {
const page = <Page>args.object;
@@ -47,11 +48,22 @@ export class DemoModel extends Observable {
this.target.addEventListener(Observable.propertyChangeEvent, onPropertyChange, null);
jamieProfiler.flush();
console.log('BEGIN PROFILE');
const time = profile(() => {
for (let i = 0; i < 1000000; i++) {
this.target.setProperty(propName, i);
}
});
console.log('END PROFILE');
console.log(
jamieProfiler
.report(jamieProfiler.flush())
.map(([key, value]) => `${key}: ${value} ms`)
.join('\n')
);
this.target.removeEventListener(Observable.propertyChangeEvent, onPropertyChange, null);