41 lines
769 B
JavaScript
41 lines
769 B
JavaScript
"use strict";
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const Gpio = require('../onoff').Gpio;
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const pulseLed = (led, pulseCount) => {
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let time = process.hrtime();
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for (let i = 0; i !== pulseCount; i += 1) {
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led.writeSync(1);
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led.writeSync(0);
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}
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time = process.hrtime(time);
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const writesPerSecond = pulseCount * 2 / (time[0] + time[1] / 1E9);
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return writesPerSecond;
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}
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const syncWritesPerSecond = () => {
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const led = new Gpio(17, 'out');
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let writes = 0;
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// Do a dry run first to get the runtime primed
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pulseLed(led, 50000);
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for (let i = 0; i !== 10; i += 1) {
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writes += pulseLed(led, 100000);
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}
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led.unexport();
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return writes / 10;
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}
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console.log('ok - ' + __filename);
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console.log(
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' ' + Math.floor(syncWritesPerSecond()) + ' sync writes per second'
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);
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