Method calculateMetrics

deps/v8/tools/parse-processor.mjs:327–394

(printSummary)

  }

  calculateMetrics(printSummary) {
    let log = (str) => this.summary += str + '\n';
    log(`SCRIPT: ${this.id}`);
    let all = this.funktions;
    if (all.length === 0) return;

    let nofFunktions = all.length;
    let ownBytesSum = list => {
      return list.reduce((bytes, each) => bytes + each.getOwnBytes(), 0)
    };

    let info = (name, funktions) => {
      let ownBytes = ownBytesSum(funktions);
      let nofPercent = Math.round(funktions.length / nofFunktions * 100);
      let value = (funktions.length + "#").padStart(7) +
        (nofPercent + "%").padStart(5) +
        BYTES(ownBytes, this.bytesTotal).padStart(16);
      log((`  - ${name}`).padEnd(20) + value);
      this.metrics.set(name + "-bytes", ownBytes);
      this.metrics.set(name + "-count", funktions.length);
      this.metrics.set(name + "-count-percent", nofPercent);
      this.metrics.set(name + "-bytes-percent",
        Math.round(ownBytes / this.bytesTotal * 100));
    };

    log(`  - file:         ${this.file}`);
    log('  - details:      ' +
        'isEval=' + this.isEval + ' deserialized=' + this.isDeserialized +
        ' streamed=' + this.isStreamingCompiled);
    log("    Category               Count           Bytes");
    info("scripts", this.getScripts());
    info("functions", all);
    info("toplevel fns", all.filter(each => each.isToplevel()));
    info('preparsed', all.filter(each => each.preparseDuration > 0));

    info('fully parsed', all.filter(each => each.parseDuration > 0));
    // info("fn parsed", all.filter(each => each.parse2Duration > 0));
    // info("resolved", all.filter(each => each.resolutionDuration > 0));
    info("executed", all.filter(each => each.executionTimestamp > 0));
    info('eval', all.filter(each => each.isEval));
    info("lazy compiled", all.filter(each => each.lazyCompileTimestamp > 0));
    info("eager compiled", all.filter(each => each.compileTimestamp > 0));

    info("baseline", all.filter(each => each.baselineTimestamp > 0));
    info("optimized", all.filter(each => each.optimizeTimestamp > 0));

    log("    Cost split: executed vs non-executed functions, max = longest single event");
    const costs = [
      ['parse', each => each.parseDuration],
      ['preparse', each => each.preparseDuration],
      ['resolution', each => each.resolutionDuration],
      ['compile-eager',  each => each.compileDuration],
      ['compile-lazy',  each => each.lazyCompileDuration],
      ['baseline',  each => each.baselineDuration],
      ['optimize', each => each.optimizeDuration],
    ];
    for (let [name, fn] of costs) {
      const executionCost = new ExecutionCost(name, all, fn);