public void Collect(MemoryCollectionArgs collectionArgs)
{
}
/// <summary> /// Called by the <see cref="MemoryManager"/> to collect memory from /// <see cref="ILargeObjectContainer"/>s, if necessary. See <see cref="MemoryManager"/> for more details. /// </summary> public abstract void Collect(MemoryCollectionArgs collectionArgs);
public override void Collect(MemoryCollectionArgs collectionArgs)
{
_largeObjectEnumerator = collectionArgs.LargeObjectContainers.GetEnumerator();
_regenerationCost = RegenerationCost.Low;
//TODO (Time Review): Use Environment.TickCount?
_collectionStartTime = DateTime.Now;
_timeSinceLastCollection = _collectionStartTime - _lastCollectionTime;
TimeSpan thirtySeconds = TimeSpan.FromSeconds(30);
if (_timeSinceLastCollection < thirtySeconds)
{
Platform.Log(LogLevel.Debug, "Time since last collection is less than 30 seconds; adjusting to 30 seconds.");
_timeSinceLastCollection = thirtySeconds;
}
_maxTimeSinceLastAccess = _timeSinceLastCollection;
_maxTimeSinceLastAccessDecrement = TimeSpan.FromSeconds(_timeSinceLastCollection.TotalSeconds / 3);
_totalNumberOfCollections = 0;
_totalBytesCollected = 0;
_totalLargeObjectsCollected = 0;
_totalContainersUnloaded = 0;
try
{
CodeClock clock = new CodeClock();
clock.Start();
Collect();
clock.Stop();
PerformanceReportBroker.PublishReport("Memory", "Collect", clock.Seconds);
}
catch (Exception e)
{
Platform.Log(LogLevel.Warn, e, "Default memory management strategy failed to collect.");
}
finally
{
DateTime collectionEndTime = DateTime.Now;
if (_totalContainersUnloaded > 0)
{
_lastCollectionTime = collectionEndTime;
}
_largeObjectEnumerator = null;
TimeSpan totalElapsed = collectionEndTime - _collectionStartTime;
MemoryCollectedEventArgs finalArgs = new MemoryCollectedEventArgs(
_totalContainersUnloaded, _totalLargeObjectsCollected, _totalBytesCollected, totalElapsed, true);
if (_totalNumberOfCollections != 0 ||
_totalBytesCollected != 0 ||
_totalLargeObjectsCollected != 0 ||
_totalContainersUnloaded != 0)
{
Platform.Log(LogLevel.Info,
"Large object collection summary: freed {0} MB in {1} seconds and {2} iterations, Total Containers: {3}, Total Large Objects: {4}",
_totalBytesCollected / (float)OneMegabyte,
totalElapsed.TotalSeconds,
_totalNumberOfCollections,
_totalContainersUnloaded,
_totalLargeObjectsCollected);
}
OnMemoryCollected(finalArgs);
}
}