private static void WriteMetrics(StressMetrics metrics, string header, StressOptions options)
{
var sb = new StringBuilder();
sb.AppendLine("=== Final Metrics ===");
sb.Append(metrics.ToString());
var metricsString = sb.ToString();
Console.WriteLine(metricsString);
if (!string.IsNullOrEmpty(options.MetricsFile))
{
File.WriteAllText(options.MetricsFile, header + metricsString);
}
}
private static void WriteExceptions(StressMetrics metrics, string header, StressOptions options)
{
var sb = new StringBuilder();
sb.AppendLine("=== Exceptions ===");
foreach (var exception in metrics.Exceptions)
{
sb.AppendLine(exception.ToString());
sb.AppendLine();
}
var exceptionsString = sb.ToString();
Console.WriteLine(exceptionsString);
if (!string.IsNullOrEmpty(options.ExceptionsFile))
{
File.WriteAllText(options.ExceptionsFile, header + exceptionsString);
}
}
private static void WriteEvents(StressMetrics metrics, string header, StressOptions options)
{
var sb = new StringBuilder();
sb.AppendLine("=== Events ===");
foreach (var e in metrics.Events)
{
sb.AppendLine($"[{e.EventArgs.EventSource.Name} :: {e.EventArgs.EventName}]");
sb.AppendLine(e.Message);
sb.AppendLine();
}
var eventsString = sb.ToString();
Console.WriteLine(eventsString);
if (!string.IsNullOrEmpty(options.EventsFile))
{
File.WriteAllText(options.ExceptionsFile, header + eventsString);
}
}
private static async Task RunTestAsync(IStressTest test, int durationSeconds, StressMetrics metrics)
{
var duration = TimeSpan.FromSeconds(durationSeconds);
using var testCts = new CancellationTokenSource(duration);
var cancellationToken = testCts.Token;
metrics.StartAutoUpdate();
using var progressStatusCts = new CancellationTokenSource();
var progressStatusThread = PrintStatus(
"=== Metrics ===",
() => metrics.ToString(),
newLine: true,
progressStatusCts.Token);
try
{
await test.RunAsync(cancellationToken);
}
catch (Exception e) when(ContainsOperationCanceledException(e))
{
}
// TODO: Consider more exception handling, including a special case for OutOfMemoryException, StackOverflowException, etc
metrics.StopAutoUpdate();
progressStatusCts.Cancel();
progressStatusThread.Join();
}