public static void LargeObjectHeapCompactionModeRoundTrips(GCLargeObjectHeapCompactionMode value)
{
GCLargeObjectHeapCompactionMode orig = GCSettings.LargeObjectHeapCompactionMode;
try
{
GCSettings.LargeObjectHeapCompactionMode = value;
Assert.Equal(value, GCSettings.LargeObjectHeapCompactionMode);
}
finally
{
GCSettings.LargeObjectHeapCompactionMode = orig;
Assert.Equal(orig, GCSettings.LargeObjectHeapCompactionMode);
}
}
public static bool Test1()
{
Console.WriteLine("Setting GCLargeObjectHeapCompactionMode.CompactOnce");
int GCCount = 0;
int initialGCCount = GetBlockingGen2Count();
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
GCCount = GetBlockingGen2Count();
if (initialGCCount != GCCount)
{
Console.WriteLine("A GC happened while setting CompactOnce. Old count {0}, new Count {1}", initialGCCount, GCCount);
//skip this run
return(true);
}
Thread.Sleep(100);
int currentGCCount = GetBlockingGen2Count();
GCLargeObjectHeapCompactionMode mode = GCSettings.LargeObjectHeapCompactionMode;
GCCount = GetBlockingGen2Count();
if (currentGCCount != GCCount) //a GC happened in between these calls
{
Console.WriteLine("A GC happened while getting Compaction Mode. Old count {0}, new Count {1}", currentGCCount, GCCount);
//skip this run
return(true);
}
Console.WriteLine("initial GC count: {0}; currentGCCount: {1}", initialGCCount, currentGCCount);
Console.WriteLine(mode);
if (currentGCCount == initialGCCount)
{
if (mode != GCLargeObjectHeapCompactionMode.CompactOnce)
{
Console.WriteLine("GCLargeObjectHeapCompactionMode should be CompactOnce; instead it is " + mode);
return(false);
}
}
else
{
if (mode != GCLargeObjectHeapCompactionMode.Default)
{
Console.WriteLine("GCLargeObjectHeapCompactionMode should be Default; instead it is " + mode);
return(false);
}
}
return(true);
}
public static bool Test2()
{
Console.WriteLine("Setting GCLargeObjectHeapCompactionMode.CompactOnce");
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
GC.Collect();
GCLargeObjectHeapCompactionMode mode = GCSettings.LargeObjectHeapCompactionMode;
Console.WriteLine(mode);
if (mode != GCLargeObjectHeapCompactionMode.Default)
{
Console.WriteLine("GCLargeObjectHeapCompactionMode should be CompactOnce; instead it is " + mode);
return(false);
}
return(true);
}
private static extern void SetLOHCompactionMode(GCLargeObjectHeapCompactionMode newLOHCompactionMode);
public static void LargeObjectHeapCompactionModeRoundTrips(GCLargeObjectHeapCompactionMode value)
{
GCLargeObjectHeapCompactionMode orig = GCSettings.LargeObjectHeapCompactionMode;
try
{
GCSettings.LargeObjectHeapCompactionMode = value;
Assert.Equal(value, GCSettings.LargeObjectHeapCompactionMode);
}
finally
{
GCSettings.LargeObjectHeapCompactionMode = orig;
Assert.Equal(orig, GCSettings.LargeObjectHeapCompactionMode);
}
}
private static void SetLOHCompactionMode(GCLargeObjectHeapCompactionMode value) => RuntimeImports.RhSetLohCompactionMode((int)value);
