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javascriptbenchmarkingperformancejsperf

Explain this JsPerf.com result

I ran a test on this website http://jsperf.com/

This is screen shot of a jsperf test i ran

I want some one to explain

  1. What does green and pink signifies
  2. What is ops per second
  3. what is 95,814,583
  4. what is +- 1.95% is
  5. whats does 'fastest' and 'slower' means
Solution

  • Hey, I’m the creator of jsPerf.

    1. The fastest test(s) get a green background. The slowest test(s) get a pink/red background.
    2. See below.
    3. It means the test can run about 95,814,583 times a second.
    4. ± 1.95 is the margin of error. (For more info, see below.)
    5. “fastest” means this is the fastest test in the test case. 19% slower means this test is 19% slower than the fastest test in the test case.

    See John-David Dalton’s answer to “How does jsPerf work?” for a detailed explanation of the following:

    • What is “ops/sec”?
    • How many iterations does it do?
    • On what basis does it calculate which is faster?
    • What is the formula behind these calculations?