Hello,
I am seeing very poor garbage collection performance, even for quite small
memory sets. here is a log from my game, I am seeing 35seconds+ for
collection of less than a Meg. (These are not extraordinarily small or
large objects, just some bitmaps/fonts maybe a sound)
Also note the case where the garbage collection was performed and the memory
usage actually got larger!
Here is the code I use for the logging/GC
/// <summary>
/// forced garbage collection
/// </summary>
public static void GarbageCollect()
{
#if DEBUG
Log.Info("++++++++ FORCED GARBAGE COLLECTION +++++");
Log.Info("Before: " + GC.GetTotalMemory(false).ToString());
DateTime dt = DateTime.Now;
#endif
GC.Collect();
#if DEBUG
Log.Info("After: " + GC.GetTotalMemory(false).ToString());
Log.Info("Took " + (DateTime.Now - dt).TotalMilliseconds +
"ms");
#endif
}
Here is the resulting log...
12-07 01:46:42.883: INFO/EXTERMINATOR(23357): Created
Exterminator.InvoiceScreen
12-07 01:46:42.883: INFO/EXTERMINATOR(23357): Stop all Sounds
12-07 01:46:42.883: INFO/EXTERMINATOR(23357): Accelerometer stopped
12-07 01:46:50.016: INFO/EXTERMINATOR(23357): Created
Exterminator.WarningScreen
12-07 01:46:50.016: INFO/EXTERMINATOR(23357): ++++++++ FORCED GARBAGE
COLLECTION +++++
*12-07 01:46:50.023: INFO/EXTERMINATOR(23357): Before: 6863832
12-07 01:47:25.578: INFO/EXTERMINATOR(23357): After: 7059952
12-07 01:47:25.578: INFO/EXTERMINATOR(23357): Took 35555.756ms*
12-07 01:47:25.664: INFO/EXTERMINATOR(23357): Created
Exterminator.PickJobScreen2
12-07 01:47:25.687: INFO/EXTERMINATOR(23357): Stop all Sounds
12-07 01:47:25.687: INFO/EXTERMINATOR(23357): ++++++++ FORCED GARBAGE
COLLECTION +++++
*12-07 01:47:25.687: INFO/EXTERMINATOR(23357): Before: 7059952
12-07 01:48:02.141: INFO/EXTERMINATOR(23357): After: 7028176
12-07 01:48:02.141: INFO/EXTERMINATOR(23357): Took 36453.064ms*
12-07 01:48:12.336: INFO/EXTERMINATOR(23357): Created
Exterminator.JobOrderScreen
12-07 01:48:12.336: INFO/EXTERMINATOR(23357): ++++++++ FORCED GARBAGE
COLLECTION +++++
*12-07 01:48:12.344: INFO/EXTERMINATOR(23357): Before: 7048144
12-07 01:48:39.859: INFO/EXTERMINATOR(23357): After: 7023264
12-07 01:48:39.859: INFO/EXTERMINATOR(23357): Took 27520.233ms*
12-07 01:48:39.859: INFO/EXTERMINATOR(23357): Request Play Sound Bleep
12-07 01:48:39.859: INFO/EXTERMINATOR(23357): Playing Sound Bleep
12-07 01:48:39.875: INFO/EXTERMINATOR(23357): PLAYSOUND Bleep
12-07 01:48:39.914: INFO/EXTERMINATOR(23357): Load Resource Misc/drop2
12-07 01:48:39.914: INFO/EXTERMINATOR(23357): Loaded Resource Misc/drop2
Cheers
Warren
--
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