public virtual void CommonUsagePerfTest()
{
int NumRuns = 5;
DataChecksum checksum = DataChecksum.NewDataChecksum(DataChecksum.Type.Crc32c, 512
);
int dataLength = 512 * 1024 * 1024;
TestDataChecksum.Harness h = new TestDataChecksum.Harness(checksum, dataLength, true
);
for (int i = 0; i < NumRuns; i++)
{
StopWatch s = new StopWatch().Start();
// calculate real checksum, make sure it passes
checksum.CalculateChunkedSums(h.dataBuf, h.checksumBuf);
s.Stop();
System.Console.Error.WriteLine("Calculate run #" + i + ": " + s.Now(TimeUnit.Microseconds
) + "us");
s = new StopWatch().Start();
// calculate real checksum, make sure it passes
checksum.VerifyChunkedSums(h.dataBuf, h.checksumBuf, "fake file", 0);
s.Stop();
System.Console.Error.WriteLine("Verify run #" + i + ": " + s.Now(TimeUnit.Microseconds
) + "us");
}
}
public virtual void TestPerformance()
{
string obj = "hello world";
int numElems = 1000000;
int numTrials = 5;
for (int trial = 0; trial < numTrials; trial++)
{
System.GC.Collect();
{
AList <string> arrayList = new AList <string>();
StopWatch sw = new StopWatch();
sw.Start();
for (int i = 0; i < numElems; i++)
{
arrayList.AddItem(obj);
}
System.Console.Out.WriteLine(" ArrayList " + sw.Now(TimeUnit.Milliseconds));
}
// test ChunkedArrayList
System.GC.Collect();
{
ChunkedArrayList <string> chunkedList = new ChunkedArrayList <string>();
StopWatch sw = new StopWatch();
sw.Start();
for (int i = 0; i < numElems; i++)
{
chunkedList.AddItem(obj);
}
System.Console.Out.WriteLine("ChunkedArrayList " + sw.Now(TimeUnit.Milliseconds));
}
}
}
public virtual void Run()
{
StopWatch sw = new StopWatch();
IDictionary <string, JvmPauseMonitor.GcTimes> gcTimesBeforeSleep = this._enclosing
.GetGcTimes();
while (this._enclosing.shouldRun)
{
sw.Reset().Start();
try
{
Thread.Sleep(JvmPauseMonitor.SleepIntervalMs);
}
catch (Exception)
{
return;
}
long extraSleepTime = sw.Now(TimeUnit.Milliseconds) - JvmPauseMonitor.SleepIntervalMs;
IDictionary <string, JvmPauseMonitor.GcTimes> gcTimesAfterSleep = this._enclosing.
GetGcTimes();
if (extraSleepTime > this._enclosing.warnThresholdMs)
{
++this._enclosing.numGcWarnThresholdExceeded;
JvmPauseMonitor.Log.Warn(this._enclosing.FormatMessage(extraSleepTime, gcTimesAfterSleep
, gcTimesBeforeSleep));
}
else
{
if (extraSleepTime > this._enclosing.infoThresholdMs)
{
++this._enclosing.numGcInfoThresholdExceeded;
JvmPauseMonitor.Log.Info(this._enclosing.FormatMessage(extraSleepTime, gcTimesAfterSleep
, gcTimesBeforeSleep));
}
}
this._enclosing.totalGcExtraSleepTime += extraSleepTime;
gcTimesBeforeSleep = gcTimesAfterSleep;
}
}
