75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
'use strict';
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const fork = require('child_process').fork;
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const path = require('path');
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const CLI = require('./_cli.js');
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//
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// Parse arguments
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//
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const cli = new CLI(`usage: ./node scatter.js [options] [--] <filename>
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Run the benchmark script <filename> many times and output the rate (ops/s)
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together with the benchmark variables as a csv.
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--runs 30 number of samples
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--set variable=value set benchmark variable (can be repeated)
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`, { arrayArgs: ['set'] });
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if (cli.items.length !== 1) {
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cli.abort(cli.usage);
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}
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// Create queue from the benchmarks list such both node versions are tested
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// `runs` amount of times each.
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const filepath = path.resolve(cli.items[0]);
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const name = filepath.slice(__dirname.length + 1);
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const runs = cli.optional.runs ? parseInt(cli.optional.runs, 10) : 30;
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let printHeader = true;
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function csvEncodeValue(value) {
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if (typeof value === 'number') {
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return value.toString();
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} else {
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return `"${value.replace(/"/g, '""')}"`;
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}
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}
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(function recursive(i) {
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const child = fork(path.resolve(__dirname, filepath), cli.optional.set);
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child.on('message', (data) => {
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if (data.type !== 'report') {
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return;
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}
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// print csv header
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if (printHeader) {
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const confHeader = Object.keys(data.conf)
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.map(csvEncodeValue)
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.join(', ');
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console.log(`"filename", ${confHeader}, "rate", "time"`);
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printHeader = false;
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}
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// print data row
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const confData = Object.keys(data.conf)
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.map((key) => csvEncodeValue(data.conf[key]))
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.join(', ');
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console.log(`"${name}", ${confData}, ${data.rate}, ${data.time}`);
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});
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child.once('close', (code) => {
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if (code) {
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process.exit(code);
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return;
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}
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// If there are more benchmarks execute the next
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if (i + 1 < runs) {
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recursive(i + 1);
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}
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});
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})(0);
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