public void LohSize()
{
using (var testProcess = new TestProcessHandle())
using (var meter = new ManagedMemoryMeter(testProcess.Process.Id))
{
var size = DataSize.FromKilobytes(100);
var lohSizeBefore = meter.GetManagedMemoryInfo().Heap.LargeObjectHeapSizeBytes;
testProcess.EatPrivateMemory(size.Bytes);
testProcess.MakeGC(0);
var lohSizeAfter = meter.GetManagedMemoryInfo().Heap.LargeObjectHeapSizeBytes;
(lohSizeAfter - lohSizeBefore).Should().BeGreaterOrEqualTo(size.Bytes);
}
}
public void AllocationRate(int mb, int seconds)
{
var size = DataSize.FromMegabytes(mb);
var rate = (size / seconds).Bytes;
using (var testProcess = new TestProcessHandle())
using (var meter = new ManagedMemoryMeter(testProcess.Process.Id))
{
meter.GetManagedMemoryInfo();
testProcess.EatPrivateMemory(size.Bytes);
Thread.Sleep(seconds.Seconds());
testProcess.MakeGC(0);
var result = meter.GetManagedMemoryInfo();
(result.Heap.AllocatedBytesPerSecond - rate).Should().BeLessThan(rate / 10);
}
}
public void GCMeter_Works_for_current_process()
{
using (var meter = new ManagedMemoryMeter())
{
var before = meter.GetManagedMemoryInfo().GC;
Console.WriteLine($"Before: {before}");
GC.Collect(0);
GC.Collect(1);
GC.Collect(2);
var after = meter.GetManagedMemoryInfo().GC;
Console.WriteLine($"After: {after}");
(after.Gen0CollectionsSinceStart - before.Gen0CollectionsSinceStart).Should().BeGreaterOrEqualTo(3);
(after.Gen1CollectionsSinceStart - before.Gen1CollectionsSinceStart).Should().BeGreaterOrEqualTo(2);
(after.Gen2CollectionsSinceStart - before.Gen2CollectionsSinceStart).Should().BeGreaterOrEqualTo(1);
}
}
public void GCMeter_Works()
{
using (var testProcess = new TestProcessHandle())
using (var meter = new ManagedMemoryMeter(testProcess.Process.Id))
{
var before = meter.GetManagedMemoryInfo().GC;
Console.WriteLine($"Before: {before}");
testProcess.MakeGC(0);
testProcess.MakeGC(1);
testProcess.MakeGC(2);
var after = meter.GetManagedMemoryInfo().GC;
Console.WriteLine($"After: {after}");
(after.Gen0CollectionsSinceStart - before.Gen0CollectionsSinceStart).Should().BeGreaterOrEqualTo(3);
(after.Gen1CollectionsSinceStart - before.Gen1CollectionsSinceStart).Should().BeGreaterOrEqualTo(2);
(after.Gen2CollectionsSinceStart - before.Gen2CollectionsSinceStart).Should().BeGreaterOrEqualTo(1);
}
}
