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About Benchmarking

probe.gl offers a Bench facility that makes it easy to create "micro-benchmarks" for optimization and regression testing purposes.

Goals​

  • Fast benchmarking - Assumes benchmarks are run frequently and need to run fast. Sacrifice some precision for fast results (configurable)
  • Reporting - Want to copy your benchmarks into reports? You can provide custom formatters, or use exiting formatters like the markdown formatter.
  • Priority - As with everything in probe.gl, you can assign a priority to each bench case, e.g. enabling a quick run of top level test cases, or a drill down run that benches multiple variations.
  • Regression - Automatically stores values from previous runs and compares the current run against them.
  • Browser and Node - As always, probe.gl makes sure that your benchmarks will run under Node.js as well as in the browser (be aware that performance can differ quite a bit between the two).

What is a "Micro Benchmark"​

A micro benchmark is simply a function you supply, that will be run for a number of times with a timer to determine how many times per second it can be executed.

Structure of a Benchmark Suite​

Instantiate the Bench class to create a benchmark suite. use bench.group to group bench cases and add headers. Use bench.add to register individual benchmarks.