evalTimer

Syntax

evalTimer(funcs, [count=1])

Arguments

funcs is a function or a tuple of functions with no parameters.

count (optional) is a positive number indicating the number of times funcs will be executed. The default value is 1.

Details

Return the execution time of the specified functions in units of milliseconds. If funcs is a tuple of functions, return the amount of time to execute these functions consecutively.

The difference between statement timer and function evalTimer:

  • the input of timer is a statement block while the input of evalTimer can only be functions. To use evalTimer to get execution time of a statement block, we need to rewrite the statement block as a user-defined function.

  • timer returns a message which cannot be assigned to a variable; evalTimer returns a scalar that can be assigned to a variable.

Examples

x=rand(10.0, 1000000)
evalTimer(dot{x,2},10);
// output
39.609375

evalTimer(sort{x},10);
// output
837.542702

evalTimer([dot{x,2},sort{x}],10)
// output
870.065348