Archived:Garbage collecting prohibitively slows S60 2nd Edition (Known Issue)

Article Metadata

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Tested with

Devices(s): Nokia 6600

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Compatibility

Platform(s): S60 2nd Edition

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Article

Created: User:Technical writer 1 (16 Aug 2007)

Last edited: hamishwillee (30 Mar 2012)

Description

Calling the System.gc() method results in extreme slowness and jamming. In Monty 1.0 VM, garbage collection is different and every time System.gc is called, the entire memory is really cleared. This is an extremely slow process!

Solution

Do not call the System.gc method at all, or call the System.gc() garbage collecting method only in non-time-critical situations, such as screen transitions, state transitions, pause states, etc. If the System.gc() method is used, it is recommended to add a short delay (~20-50 ms) after the method call to ensure the sufficient time for the garbage collection, as in the following example:

 System.gc();

 Thread.sleep(delay); //delay = 20-50 ms