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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | 1x 1x 2x 3x 2x 3x 2x 3x 2x 3x | 'use strict';
/**
* Report on Navigation Timing API metrics.
*
* @module reports/navtiming
* @see {@link Report}
* @see <https://www.w3.org/TR/navigation-timing-2/>
*/
const compute = require( '../compute' );
module.exports = {
probes: [
'navtiming'
],
metrics: {
responseStart: {
caption: 'Time to first byte',
unit: 'ms',
analyse: ( series ) => compute.stats( series.navtiming.responseStart ),
compare: ( a, b ) => compute.diffStdev( a, b )
},
loadEventEnd: {
caption: 'Total page load time',
unit: 'ms',
analyse: ( series ) => compute.stats( series.navtiming.loadEventEnd ),
compare: ( a, b ) => compute.diffStdev( a, b ),
threshold: 100
},
processing: {
caption: 'Time from responseEnd to domComplete',
unit: 'ms',
analyse: ( series ) => compute.stats( compute.subtract(
series.navtiming.domComplete,
series.navtiming.responseEnd
) ),
compare: ( a, b ) => compute.diffStdev( a, b ),
threshold: 100
},
onLoad: {
caption: 'Time from loadEventStart to loadEventEnd',
unit: 'ms',
analyse: ( series ) => compute.stats( compute.subtract(
series.navtiming.loadEventEnd,
series.navtiming.loadEventStart
) ),
compare: ( a, b ) => compute.diffStdev( a, b ),
threshold: 10
}
}
};
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