protected override PmcStats GetInitializedStats(DiagnoserActionParameters parameters)
{
var stats = new PmcStats(
parameters.Config.GetHardwareCounters().ToArray(),
counter => HardwareCounters.FromCounter(counter, info => info.MinInterval)); // for this diagnoser we want the smallest interval to have best possible precision
HardwareCounters.Enable(stats.Counters.Values);
return(stats);
}
private void Start(DiagnoserActionParameters parameters)
{
var counters = benchmarkToCounters[parameters.BenchmarkCase] = parameters.Config
.GetHardwareCounters()
.Select(counter => HardwareCounters.FromCounter(counter, config.IntervalSelectors.TryGetValue(counter, out var selector) ? selector : GetInterval))
.ToArray();
if (counters.Any()) // we need to enable the counters before starting the kernel session
{
HardwareCounters.Enable(counters);
}
try
{
kernelSession = new KernelSession(parameters, config, CreationTime).EnableProviders();
if (config.CreateHeapSession)
{
heapSession = new HeapSession(parameters, config, CreationTime).EnableProviders();
}
userSession = new UserSession(parameters, config, CreationTime).EnableProviders();
}
catch (Exception)
{
userSession?.Dispose();
heapSession?.Dispose();
kernelSession?.Dispose();
throw;
}
}