Seeking benchmark function snippet for tight loop timing

Fri 2018.08.31

Thank you @Wilberforce for responding.

Each post stated a specific objective for each individual task to be accomplished. All smaller parts of a large project. I wasn't expecting anyone to provide the entire project solution coded, just respond to a smaller subset. This should make for easier understanding, and thus provide a speedier response on a lesser demanding concept.

As you inquired specifically about this one, to quell your thirst to know, a function I created seems to get bogged down on large simultaneous array bit manipulation. Very similar to how bitblt() worked with Windows programming. I miss *pointers

Tasks seem to execute even after loops time out. I suspect the order of initiating setTimeout() is part of the problem. And/or multiple calls to Math.sin() which would point to interpreter response time. To rule that out, I was seeking a benchmark routine that was processor intensive and had a consistent execution time, such that I could gage if similar sections I had coded seemed reasonable. The output would be similar to how a function profiler would work. Time stamping entry and exit to determine the potential hangup point.

A sample benchmark from forty years ago was something like

Math (( F(x) * F(y) ) / F(x)) * (F(y) / ( F(x) * F(y) ))

executed 1000 times. I just can't locate a reference nor am I able to trigger the recall brain cells into action.

The sqrt() concept from link in #1 might be fun to convert from 'C' to Javascript, but felt someone might have the solution standard above, should they have been down this path.

and no, Graphics.createArrayBuffer() is not what I'm after.