private async Task GetDataPerformanceTest(IRingMasterRequestHandler ringMaster, ConfigurationSection config, CancellationToken cancellationToken)
{
try
{
string testRootPath = config.GetStringValue("TestPath");
int maxConcurrentGetDataBatches = config.GetIntValue("MaxConcurrentBatches");
int batchLength = config.GetIntValue("BatchLength");
int maxNodes = config.GetIntValue("MaxNodesToLoad");
var instrumentation = new GetDataPerformanceInstrumentation(this.MetricsFactory);
var getDataPerformanceTest = new GetDataPerformance(instrumentation, maxConcurrentGetDataBatches, cancellationToken);
await getDataPerformanceTest.LoadNodes(ringMaster, testRootPath, maxNodes);
ringMaster.Timeout = 100;
ServingPlaneStressServiceEventSource.Log.GetDataPerformanceTestStarted(testRootPath, maxNodes, batchLength);
await Task.Run(() => getDataPerformanceTest.QueueBatches(ringMaster, batchLength));
ServingPlaneStressServiceEventSource.Log.GetDataPerformanceTestCompleted();
}
catch (Exception ex)
{
ServingPlaneStressServiceEventSource.Log.GetDataPerformanceTestFailed(ex.ToString());
}
}
/// <summary>
/// Measures the performance of GetData requests.
/// </summary>
/// <param name="ringMaster">RingMaster client</param>
/// <param name="cancellation">The cancellation.</param>
/// <returns>
/// Task that tracks execution of this test
/// </returns>
private async Task GetDataPerformanceTest(IRingMasterRequestHandler ringMaster, CancellationTokenSource cancellation)
{
Trace.TraceInformation($"GetData performance test path={this.TestPath} batchLength={this.BatchLength}");
var cancellationToken = cancellation.Token;
var instrumentation = new GetDataPerformanceInstrumentation();
var getDataPerformanceTest = new GetDataPerformance(instrumentation, this.MaxConcurrency, cancellationToken);
await getDataPerformanceTest.LoadNodes(ringMaster, this.TestPath, this.MaxNodes, this.MaxGetChildrenEnumerationCount);
var task = Task.Run(() => getDataPerformanceTest.QueueBatches(ringMaster, this.BatchLength));
long lastSuccessCount = 0;
var timer = Stopwatch.StartNew();
while (!task.Wait(5000))
{
timer.Stop();
long rate = (long)((instrumentation.Success - lastSuccessCount) * 1000) / timer.ElapsedMilliseconds;
Trace.TraceInformation($"GetData success={instrumentation.Success} failure={instrumentation.Failure} rate={rate}");
timer.Restart();
lastSuccessCount = instrumentation.Success;
}
}
