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33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
//
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// Tools for performance debugging, only enabled in development mode.
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// Open up Chrome Dev Tools, then Timeline, then User Timing to see output.
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// Also see config/webpack/loaders/mark.js for the webpack loader marks.
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//
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let marky;
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if (process.env.NODE_ENV === 'development') {
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if (typeof performance !== 'undefined' && performance.setResourceTimingBufferSize) {
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// Increase Firefox's performance entry limit; otherwise it's capped to 150.
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// See: https://bugzilla.mozilla.org/show_bug.cgi?id=1331135
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performance.setResourceTimingBufferSize(Infinity);
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}
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// eslint-disable-next-line import/no-extraneous-dependencies
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marky = require('marky');
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// allows us to easily do e.g. ReactPerf.printWasted() while debugging
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//window.ReactPerf = require('react-addons-perf');
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//window.ReactPerf.start();
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}
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export function start(name) {
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if (process.env.NODE_ENV === 'development') {
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marky.mark(name);
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}
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}
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export function stop(name) {
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if (process.env.NODE_ENV === 'development') {
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marky.stop(name);
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}
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}
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