public async Task CheckIfNeedToTakeSnapshotsAsync()
{
if (stressUtilOptions.NumIterationsBeforeTotalToTakeBaselineSnapshot > 0 &&
stressUtilOptions.NumIterations >= stressUtilOptions.NumIterationsBeforeTotalToTakeBaselineSnapshot)
{
// if we have enough iterations, lets take a snapshot before they're all done so we can compare: take a baseline snapshot
if (nSamplesTaken == stressUtilOptions.NumIterations - stressUtilOptions.NumIterationsBeforeTotalToTakeBaselineSnapshot)
{
baseDumpFileName = await DoCreateDumpAsync($"Taking base snapshot dump at iteration {nSamplesTaken}");
}
else if (nSamplesTaken == stressUtilOptions.NumIterations) // final iteration? take snapshot
{
var filenameMeasurementResults = DumpOutMeasurementsToTxtFile();
Logger.LogMessage($"Measurement Results {filenameMeasurementResults}");
_lstAllLeakResults = (await CalculateLeaksAsync(showGraph: stressUtilOptions.ShowUI, GraphsAsFilePrefix: "Graph"));
foreach (var itm in _lstAllLeakResults)
{
Logger.LogMessage(itm.ToString());
dictTelemetryProperties[$"Ctr{itm.perfCounterData.perfCounterType}rsquared"] = itm.RSquared(); // can't use perfcounter name: invalid property name. so use enum name
dictTelemetryProperties[$"Ctr{itm.perfCounterData.perfCounterType}slope"] = itm.slope;
dictTelemetryProperties[$"Ctr{itm.perfCounterData.perfCounterType}IsLeak"] = itm.IsLeak;
dictTelemetryProperties[$"Ctr{itm.perfCounterData.perfCounterType}Threshold"] = itm.perfCounterData.thresholdRegression;
}
var lstLeakResults = _lstAllLeakResults.Where(r => r.IsLeak).ToList();
if (lstLeakResults.Count >= 0 || stressUtilOptions.FailTestAsifLeaksFound)
{
foreach (var leak in lstLeakResults.Where(p => p.IsLeak))
{
Logger.LogMessage($"Leak Detected!!!!! {leak}");
}
if (lstLeakResults.Count == 0 && stressUtilOptions.FailTestAsifLeaksFound)
{
Logger.LogMessage($"Failing test even though no leaks found so test artifacts can be examined");
}
var currentDumpFile = await DoCreateDumpAsync($"Taking final snapshot dump at iteration {nSamplesTaken}");
if (!string.IsNullOrEmpty(baseDumpFileName))
{
_oDumpAnalyzer = new DumpAnalyzer(Logger);
var sb = new StringBuilder();
sb.AppendLine($"'{TestName}' Leaks Found");
foreach (var leak in lstLeakResults)
{
sb.AppendLine($"Leak Detected: {leak}");
}
sb.AppendLine();
_oDumpAnalyzer.GetDiff(sb,
baseDumpFileName,
currentDumpFile,
stressUtilOptions.NumIterations,
stressUtilOptions.NumIterationsBeforeTotalToTakeBaselineSnapshot,
stressUtilOptions.TypesToReportStatisticsOn,
out DumpAnalyzer.TypeStatistics baselineTypeStatistics,
out DumpAnalyzer.TypeStatistics currentTypeStatistics);
if (baselineTypeStatistics != null)
{
dictTelemetryProperties["TypeStatsExclusiveRetainedBytes_Base"] = baselineTypeStatistics.ExclusiveRetainedBytes;
dictTelemetryProperties["TypeStatsInclusiveRetainedBytes_Base"] = baselineTypeStatistics.InclusiveRetainedBytes;
}
if (currentTypeStatistics != null)
{
dictTelemetryProperties["TypeStatsExclusiveRetainedBytes_Final"] = currentTypeStatistics.ExclusiveRetainedBytes;
dictTelemetryProperties["TypeStatsInclusiveRetainedBytes_Final"] = currentTypeStatistics.InclusiveRetainedBytes;
}
var fname = Path.Combine(ResultsFolder, $"{DiffFileName}_{nSamplesTaken}.txt");
File.WriteAllText(fname, sb.ToString());
if (stressUtilOptions.ShowUI)
{
Process.Start(fname);
}
lstFileResults.Add(new FileResultsData()
{
filename = fname, description = $"Differences for Type and String counts at iter {nSamplesTaken}"
});
Logger.LogMessage("DumpDiff Analysis " + fname);
}
else
{
Logger.LogMessage($"No baseline dump: not enough iterations");
}
if (this.testContext != null)
{
if (lstLeakResults.Count > 0)
{
throw new LeakException($"Leaks found: " + string.Join(",", lstLeakResults.Select(t => t.perfCounterData.perfCounterType).ToList()), lstLeakResults); //Leaks found: GCBytesInAllHeaps,ProcessorPrivateBytes,ProcessorVirtualBytes,KernelHandleCount
}
}
}
}
}
}