WORKFLOW

Find the Execution Time for an Evaluation

Time an evaluation

To find the amount of wall-clock time it takes to evaluate an expression, wrap it with AbsoluteTiming:

Compare this with the timing of the analogous evaluation that uses a Do loop:

The results are the same:

However, the Table expression is much faster than the expression using AppendTo. Calculate the ratio of the two computation times:

Sometimes the results of expensive functions will be cached, thus reducing their measured timing when repeated:

An expression with no output or suppressed output will return Null when wrapped with AbsoluteTiming.

Timing reports CPU time used:

RepeatedTiming returns the average timing of repeated evaluations of the same input:

This is roughly equivalent to taking the Mean of a set of values:

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