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'use strict';
const readline = require('readline');
function pad(input, minLength, fill) {
const result = String(input);
const padding = fill.repeat(Math.max(0, minLength - result.length));
return `${padding}${result}`;
}
function fraction(numerator, denominator) {
const fdenominator = String(denominator);
const fnumerator = pad(numerator, fdenominator.length, ' ');
return `${fnumerator}/${fdenominator}`;
}
function getTime(diff) {
const time = Math.ceil(diff[0] + diff[1] / 1e9);
const hours = pad(Math.floor(time / 3600), 2, '0');
const minutes = pad(Math.floor((time % 3600) / 60), 2, '0');
const seconds = pad((time % 3600) % 60, 2, '0');
return `${hours}:${minutes}:${seconds}`;
}
// A run is an item in the job queue: { binary, filename, iter }
// A config is an item in the subqueue: { binary, filename, iter, configs }
class BenchmarkProgress {
constructor(queue, benchmarks) {
this.queue = queue; // Scheduled runs.
this.benchmarks = benchmarks; // Filenames of scheduled benchmarks.
this.completedRuns = 0; // Number of completed runs.
this.scheduledRuns = queue.length; // Number of scheduled runs.
// Time when starting to run benchmarks.
this.startTime = process.hrtime();
// Number of times each file will be run (roughly).
this.runsPerFile = queue.length / benchmarks.length;
this.currentFile = ''; // Filename of current benchmark.
this.currentFileConfig; // Configurations for current file
// Number of configurations already run for the current file.
this.completedConfig = 0;
// Total number of configurations for the current file
this.scheduledConfig = 0;
this.interval = 0; // result of setInterval for updating the elapsed time
}
startQueue(index) {
this.kStartOfQueue = index;
this.currentFile = this.queue[index].filename;
this.interval = setInterval(() => {
if (this.completedRuns === this.scheduledRuns) {
clearInterval(this.interval);
} else {
this.updateProgress();
}
}, 1000);
}
startSubqueue(data, index) {
// This subqueue is generated by a new benchmark
if (data.name !== this.currentFile || index === this.kStartOfQueue) {
this.currentFile = data.name;
this.scheduledConfig = data.queueLength;
}
this.completedConfig = 0;
this.updateProgress();
}
completeConfig() {
this.completedConfig++;
this.updateProgress();
}
completeRun() {
this.completedRuns++;
this.updateProgress();
}
getProgress() {
// Get time as soon as possible.
const diff = process.hrtime(this.startTime);
const completedRuns = this.completedRuns;
const scheduledRuns = this.scheduledRuns;
const finished = completedRuns === scheduledRuns;
// Calculate numbers for fractions.
const runsPerFile = this.runsPerFile;
const completedFiles = Math.floor(completedRuns / runsPerFile);
const scheduledFiles = this.benchmarks.length;
const completedRunsForFile =
finished ? runsPerFile : completedRuns % runsPerFile;
const completedConfig = this.completedConfig;
const scheduledConfig = this.scheduledConfig;
// Calculate the percentage.
let runRate = 0; // Rate of current incomplete run.
if (completedConfig !== scheduledConfig) {
runRate = completedConfig / scheduledConfig;
}
const completedRate = ((completedRuns + runRate) / scheduledRuns);
const percent = pad(Math.floor(completedRate * 100), 3, ' ');
const caption = finished ? 'Done\n' : this.currentFile;
return `[${getTime(diff)}|% ${percent}| ` +
`${fraction(completedFiles, scheduledFiles)} files | ` +
`${fraction(completedRunsForFile, runsPerFile)} runs | ` +
`${fraction(completedConfig, scheduledConfig)} configs]: ` +
`${caption} `;
}
updateProgress() {
if (!process.stderr.isTTY || process.stdout.isTTY) {
return;
}
readline.clearLine(process.stderr);
readline.cursorTo(process.stderr, 0);
process.stderr.write(this.getProgress());
}
}
module.exports = BenchmarkProgress;
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