jsbenchmark

JS Benchmark

JavaScript performance benchmarking

Getting Started

To install, execute:

npm i jsbenchmark

Then, import into a project as:

import * as JSBench from "jsbenchmark";

Usage

This package can test individual functions, or a suite of test cases.

Individual Test

Single test cases can be executed, per the numer of operations.

import * as JSBench from "jsbenchmark"

new JSBench.Test("Log 10", () => {
    Math.log10(2)
  }, {
    operations: 1000000
  })
  .run()
  .log();

The above would output:

    total time: 10.31500    ops/second: 96,946,195

The test is executed for one pass, executing the function one million times.

Total time for the test was ~10 milliseconds, resulting in ~97 million operations per second

Test Suite

Multiple test cases can be included into a test suite.

Each test is executed per the numer of passes, not exceeding the maximum runtime.

import * as JSBench from "jsbenchmark"

new JSBench.TestSuite({
      async: true,
      passes: 10,
      operations: 1000000,
      maxRuntime: 1000
  })
  .add("Log10(100000)", () => {
      Math.log10(100000);
  })
  .add("Log10(2)", () => {
      Math.log10(2);
  })
  .add("Log10(1)", () => {
      Math.log10(1);
  })
  .add("Log10(0)", () => {
      Math.log10(0);
  })
  .run()

The above would output:

Log10(100000)
     min: 8.07500    avg: 9.08600    max: 10.39000    ops/second: 110,917,308

Log10(2)
     min: 6.98500    avg: 8.55900    max: 10.39000    ops/second: 118,257,790
    
Log10(1)
     min: 6.98500    avg: 8.84733    max: 12.13000    ops/second: 115,240,134
    
Log10(0)
     min: 6.98500    avg: 9.54700    max: 12.54000    ops/second: 108,184,087
    

The test is executed for ten passes, with each pass executing the function 1 million times unless maximum runtime exceeds one second.