private static PreciseMachineCounter FromCounter(HardwareCounter counter)
{
var profileSource = TraceEventProfileSources.GetInfo()[EtwTranslations[counter]]; // it can't fail, diagnoser validates that first
return(new PreciseMachineCounter(profileSource.ID, profileSource.Name, counter,
profileSource.MinInterval)); // we want the smallest interval to have best possible precision
}
private PreciseMachineCounter(int profileSourceId, string name, HardwareCounter counter, int interval)
{
ProfileSourceId = profileSourceId;
Name = name;
Counter = counter;
Interval = interval;
}
internal PreciseMachineCounter(int profileSourceId, string name, HardwareCounter counter, int interval)
{
ProfileSourceId = profileSourceId;
Name = name;
Counter = counter;
Interval = interval;
PerInstructionPointer = new Dictionary <ulong, ulong>(capacity: 10000);
}
public static string ToShortName(this HardwareCounter hardwareCounter)
{
switch (hardwareCounter)
{
case HardwareCounter.Timer:
return("timer");
case HardwareCounter.TotalIssues:
return("issues");
case HardwareCounter.BranchInstructions:
return("branch");
case HardwareCounter.CacheMisses:
return("miss");
case HardwareCounter.BranchMispredictions:
return("mispred");
case HardwareCounter.TotalCycles:
return("cycles");
case HardwareCounter.UnhaltedCoreCycles:
return("unCoreCycles");
case HardwareCounter.InstructionRetired:
return("retired");
case HardwareCounter.UnhaltedReferenceCycles:
return("unRefCycles");
case HardwareCounter.LlcReference:
return("llcRef");
case HardwareCounter.LlcMisses:
return("llcMiss");
case HardwareCounter.BranchInstructionRetired:
return("branchInst");
case HardwareCounter.BranchMispredictsRetired:
return("branchMisp");
default:
throw new NotSupportedException($"{hardwareCounter} has no short name mapping");
}
}
public static bool TheGreaterTheBetter(this HardwareCounter hardwareCounter)
{
// this method could be just a return false as of today but we want to make sure that when we add new counter it's added here on purpose!
switch (hardwareCounter)
{
case HardwareCounter.Timer:
case HardwareCounter.TotalIssues:
case HardwareCounter.BranchInstructions:
case HardwareCounter.CacheMisses:
case HardwareCounter.BranchMispredictions:
case HardwareCounter.TotalCycles:
case HardwareCounter.UnhaltedCoreCycles:
case HardwareCounter.InstructionRetired:
case HardwareCounter.UnhaltedReferenceCycles:
case HardwareCounter.LlcReference:
case HardwareCounter.LlcMisses:
case HardwareCounter.BranchInstructionRetired:
case HardwareCounter.BranchMispredictsRetired:
return(false);
default:
throw new NotSupportedException($"{hardwareCounter} has no TheGreaterTheBetter mapping");
}
}
internal static PreciseMachineCounter FromCounter(HardwareCounter counter, Func <ProfileSourceInfo, int> intervalSelector)
{
var profileSource = TraceEventProfileSources.GetInfo()[EtwTranslations[counter]]; // it can't fail, diagnoser validates that first
return(new PreciseMachineCounter(profileSource.ID, profileSource.Name, counter, intervalSelector(profileSource)));
}
public PmcColumn(Dictionary <BenchmarkCase, PmcStats> results, HardwareCounter hardwareCounter)
{
Results = results;
Counter = hardwareCounter;
ColumnName = $"{hardwareCounter}/Op";
}
