Sun Microsystems J2ME Uživatelský manuál stáhnout pdf (Strana 54)

42 J2ME Wireless Toolkit User’s Guide • October 2004

5.1.3 Saving and Loading Profiler Information

To save your profiler session, click on the Save button in the profiler window.

Choose a file name.

To load a profiler session, choose File > Utilities... from the KToolbar menu. Click

on Open Session in the Profiler box. When you select a file, the profiler window

appears with all the session information.

5.2 Using the Memory Monitor

Memory is scarce on many MIDP devices. The J2ME Wireless Toolkit includes a

memory monitor that makes it easy to examine the memory usage of your

application. You can see the total memory used by your application and a detailed

listing of the memory usage per object.

To turn on the memory monitor, choose Edit > Preferences... from the KToolbar

menu. Click on the Monitor tab. Check Enable Memory Monitor.

Next time you run the emulator, the memory monitor window pops up, displaying

a graph of your application’s memory usage over time. The memory monitor slows

down your application startup because every object created is recorded.

FIGURE 22 The memory monitor graph

The memory monitor graph shows the following information:

■ Current. The current amount of memory used by the application.

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 133 134

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Sun Microsystems J2ME Uživatelský manuál Strana 54