88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
#!/usr/bin/env node
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var colors = require('colors'),
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fs = require('fs'),
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_ = require('underscore'),
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metrics = require('metrics'),
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// `node diff_multi_bench_output.js before.txt after.txt`
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before = process.argv[2],
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after = process.argv[3];
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if (!before || !after) {
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console.log('Please supply two file arguments:');
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var n = __filename;
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n = n.substring(n.lastIndexOf('/', n.length));
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console.log(' ./' + n + ' multiBenchBefore.txt multiBenchAfter.txt');
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console.log('To generate multiBenchBefore.txt, run');
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console.log(' node multi_bench.js > multiBenchBefore.txt');
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console.log('Thank you for benchmarking responsibly.');
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return;
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}
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var before_lines = fs.readFileSync(before, 'utf8').split('\n'),
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after_lines = fs.readFileSync(after, 'utf8').split('\n');
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console.log('Comparing before,', before.green, '(', before_lines.length,
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'lines)', 'to after,', after.green, '(', after_lines.length, 'lines)');
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var total_ops = new metrics.Histogram.createUniformHistogram();
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before_lines.forEach(function(b, i) {
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var a = after_lines[i];
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if (!a || !b || !b.trim() || !a.trim()) {
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// console.log('#ignored#', '>'+a+'<', '>'+b+'<');
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return;
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}
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b_words = b.split(' ').filter(is_whitespace);
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a_words = a.split(' ').filter(is_whitespace);
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var ops =
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[b_words, a_words]
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.map(function(words) {
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// console.log(words);
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return parseInt10(words.slice(-2, -1));
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}).filter(function(num) {
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var isNaN = !num && num !== 0;
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return !isNaN;
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});
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if (ops.length != 2) return
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var delta = ops[1] - ops[0];
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total_ops.update(delta);
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delta = humanize_diff(delta);
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console.log(
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// name of test
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command_name(a_words) == command_name(b_words)
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? command_name(a_words) + ':'
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: '404:',
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// results of test
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ops.join(' -> '), 'ops/sec (∆', delta, ')');
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});
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console.log('Mean difference in ops/sec:', humanize_diff(total_ops.mean()));
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function is_whitespace(s) {
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return !!s.trim();
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}
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function parseInt10(s) {
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return parseInt(s, 10);
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}
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// green if greater than 0, red otherwise
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function humanize_diff(num) {
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if (num > 0) {
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return ('+' + num).green;
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}
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return ('' + num).red;
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}
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function command_name(words) {
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var line = words.join(' ');
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return line.substr(0, line.indexOf(','));
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}
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