/// <summary>
/// return true if regression found
/// These tests will be affected by other tests running in the same instance of testhost because they share the same memory
/// </summary>
private async Task <bool> DoStressSimulation(int nIter, int nArraySize, float RatioThresholdSensitivity, Action action = null)
{
var lstPCs = PerfCounterData.GetPerfCountersToUse(Process.GetCurrentProcess(), IsForStress: true);
foreach (var ctr in lstPCs)
{
ctr.IsEnabledForMeasurement = true;
}
List <LeakAnalysisResult> lstRegResults;
using (var measurementHolder = new MeasurementHolder(
new TestContextWrapper(TestContext),
new StressUtilOptions()
{
NumIterations = -1, Sensitivity = RatioThresholdSensitivity, logger = this, lstPerfCountersToUse = lstPCs
},
SampleType.SampleTypeIteration))
{
var lstBigStuff = new List <byte[]>();
LogMessage($"nIter={nIter:n0} ArraySize= {nArraySize:n0}");
for (int i = 0; i < nIter; i++)
{
if (action != null)
{
action();
}
else
{
lstBigStuff.Add(new byte[nArraySize]);
}
// lstBigStuff.Add(new int[10000000]);
var res = await measurementHolder.TakeMeasurementAsync($"iter {i}/{nIter}", DoForceGC : true);
LogMessage(res);
}
var filename = measurementHolder.DumpOutMeasurementsToTxtFile();
LogMessage($"Results file name = {filename}");
lstRegResults = (await measurementHolder.CalculateLeaksAsync(showGraph: false, GraphsAsFilePrefix: "Graph")).Where(r => r.IsLeak).ToList();
}
return(lstRegResults.Count > 0);
}
public async Task TestMeasureRegressionVerifyGraph()
{
await Task.Yield();
var resultsFolder = string.Empty;
using (var measurementHolder = new MeasurementHolder(
new TestContextWrapper(TestContext),
new StressUtilOptions()
{
NumIterations = -1, logger = this, lstPerfCountersToUse = PerfCounterData.GetPerfCountersToUse(Process.GetCurrentProcess(), IsForStress: true).Where(p => p.perfCounterType == PerfCounterType.KernelHandleCount).ToList()
},
SampleType.SampleTypeIteration))
{
resultsFolder = measurementHolder.ResultsFolder;
for (int iter = 0; iter < 10; iter++)
{
foreach (var ctr in measurementHolder.LstPerfCounterData)
{
var val = 10000 + (uint)iter;
if (iter == 5 && ctr.perfCounterType == PerfCounterType.KernelHandleCount)
{
val += 1;
}
measurementHolder.measurements[ctr.perfCounterType].Add(val);
}
}
var res = await measurementHolder.CalculateLeaksAsync(showGraph : true, GraphsAsFilePrefix : "Graph");
}
var strHtml = @"
<a href=""file:\\C:\Users\calvinh\Source\repos\PerfGraphVSIX\TestResults\Deploy_calvinh 2019-11-19 11_00_13/Out/TestMeasureRegressionVerifyGraph/Graph Handle Count.png"">gr </a>
";
var fileHtml = Path.Combine(resultsFolder, "IndexTest1.html");
File.WriteAllText(fileHtml, strHtml);
TestContext.AddResultFile(fileHtml);
Assert.Fail("failing test so results aren't deleted");
}
public async Task TestOutliers()
{
if (StressUtilOptions.IsRunningOnBuildMachine())
{
return;
}
await Task.Yield();
// data from https://dev.azure.com/devdiv/DevDiv/_releaseProgress?_a=release-environment-extension&releaseId=548609&environmentId=2872682&extensionId=ms.vss-test-web.test-result-in-release-environment-editor-tab&runId=10533790&resultId=100000&paneView=attachments
var testData = new uint[]
{
1867008,
2713172,
2701928,
2701928,
2701800,
2701800,
2701700,
2701700,
2711368,
2711368,
2713228,
2713228,
2714876,
2714876,
2716588,
2716588,
2716588,
2732980,
2732980,
2734848,
2734848,
2736536,
2736536,
2738052,
2738052,
2739908,
2739908,
2741400,
2741400,
2742916,
2742916,
2744548,
2744548,
2744548,
2747340,
2747340,
2764696,
2764696,
2766384,
2766384,
2767888,
2767888,
2769756,
2769756,
2771260,
2771260,
2772764,
2772764,
2774268,
2774268,
2774268,
2776140,
2776140,
2777468,
2777468,
2779168,
2779168,
2779836,
2779836,
2797744,
2797744,
2799236,
2799236,
2800996,
2800996,
2803548,
2803548,
2899440,
2904492,
2904492,
2904492,
};
var resultsFolder = string.Empty;
using (var measurementHolder = new MeasurementHolder(
new TestContextWrapper(TestContext),
new StressUtilOptions()
{
NumIterations = -1,
logger = this,
pctOutliersToIgnore = 5,
lstPerfCountersToUse = PerfCounterData.GetPerfCountersToUse(Process.GetCurrentProcess(),
IsForStress: true).Where(p => p.perfCounterType == PerfCounterType.GCBytesInAllHeaps).ToList()
},
SampleType.SampleTypeIteration))
{
resultsFolder = measurementHolder.ResultsFolder;
for (int iter = 0; iter < testData.Length; iter++)
{
foreach (var ctr in measurementHolder.LstPerfCounterData)
{
measurementHolder.measurements[ctr.perfCounterType].Add(testData[iter]);
}
}
var leakAnalysisResults = await measurementHolder.CalculateLeaksAsync(showGraph : false, GraphsAsFilePrefix : "Graph");
LogMessage($"Yint = {leakAnalysisResults[0].yintercept:n0}");
foreach (var res in leakAnalysisResults[0].lstData)
{
LogMessage($"{res} dist = {res.distance} {res}");
}
Assert.IsTrue(leakAnalysisResults[0].lstData[0].IsOutlier);
Assert.IsTrue(leakAnalysisResults[0].lstData[1].IsOutlier);
Assert.IsTrue(!leakAnalysisResults[0].lstData[2].IsOutlier);
Assert.IsTrue(leakAnalysisResults[0].lstData[68].IsOutlier);
}
}