Function: getBandwidthBps()

function getBandwidthBps(sample): number;

Defined in: getBandwidthBps.ts:18

Converts a ResourceTiming sample to bandwidth in bits per second.

The rate is the body size over the transfer duration from getTransferDuration. When the sample has responseStart, the wait for the first byte does not count.

Parameters

sample

ResourceTiming

A ResourceTiming sample

Returns

number

The bandwidth in bits per second.

Example

// 112 kB that waited 800 ms for the first byte and transferred in 50 ms.
const bandwidthBps = getBandwidthBps({
	startTime: 0,
	responseStart: 800,
	duration: 850,
	encodedBodySize: 112_000,
})

equal(bandwidthBps, 17_920_000)