Quickly determining how long it takes code to run

Before you analyze in depth the runtime performance of your code, have the method millisecondsToRun: display how long it takes to run the code. To do this, add millisecondsToRun: to a method shown in a browser and have the system print the elapsed time to the Transcript. The expressions you add to the method are as follows:

Transcript show: (

Time millisecondsToRun: [

<code>.

]) printString; cr.

When you run the code, the time it takes to run the code prints to the Transcript.

Or, if you can run the code from a Transcript, Workspace, or description pane:

1.	Add the following to your code: Time millisecondsToRun: <code> ]

2.	Using your mouse, mark the text.

3.	From the Edit menu, select Display. The number of milliseconds it takes to run the code is displayed.