private void ProcessDiskIoLog()
{
var entropyOptions = new ReducePathEntropyOptions();
var replacements = DiskIoDomainKnowledge.NewDefaultReplacementsTable();
var specificTempFile = new FileInfo(_diskIoTempFiles[WptInterop.DiskIoTempOutputLabel]);
foreach (
var m in
WptInterop.GetDiskIoMeasurementsFromXPerfOutput(specificTempFile.FullName))
{
m.PathSummary = ReducePathEntropy
? DiskIoDomainKnowledge.ReducePathEntropy(m.PathRaw, replacements, entropyOptions)
: m.PathRaw;
m.AttributionBucket = DiskIoDomainKnowledge.ResolveDiskIoAttributionBucket(m.ProcessName, m.PathRaw,
m.PathSummary);
if (RegisterNonAggregatedMeasurements) RegisterMeasurement(m);
if (AggregateByProcessAndFile)
{
if (!_aProcessAndFile.ContainsKey(m.ProcessAndPathSummaryKey))
{
var m2 = (DiskIo) m.Clone();
m2.IsAggregate = true;
m2.IoType = "MixedAggregate";
_aProcessAndFile.Add(m.ProcessAndPathSummaryKey, m2);
}
else
{
var updateThis = _aProcessAndFile[m.ProcessAndPathSummaryKey];
updateThis.IoTimeUSec += m.IoTimeUSec;
updateThis.DiskSvcTimeUSec += m.DiskSvcTimeUSec;
updateThis.Count++;
updateThis.Bytes += m.Bytes;
}
}
}
var i = 0;
while (i < 4)
{
i++;
try
{
File.Delete(_diskIoTempFiles[WptInterop.DiskIoTempOutputLabel]);
File.Delete(_diskIoTempFiles[WptInterop.DiskIoTempErrorLabel]);
break;
}
catch
{
Thread.Sleep(500);
}
}
if (!AggregateByProcessAndFile) return;
foreach (var am in _aProcessAndFile.Values)
{
RegisterMeasurement(am);
}
}
public static string ReducePathEntropy(string originalPath, ICollection<Tuple<string, string>> replacementsTable,
ReducePathEntropyOptions options)
{
var newValue = originalPath;
foreach (var row in replacementsTable)
{
var startsWithRegExPattern = "^" + Regex.Escape(row.Item1);
newValue = Regex.Replace(newValue, startsWithRegExPattern, row.Item2, RegexOptions.IgnoreCase);
//if (!originalPath.StartsWith(row.Item1, StringComparison.OrdinalIgnoreCase)) continue;
//newValue = originalPath.Replace(row.Item1.ToUpperInvariant(), row.Item2);
//break;
}
var tokenizedPath = newValue.Split(Path.DirectorySeparatorChar);
if (string.Equals(tokenizedPath[0], ProgramFilesLabel, StringComparison.OrdinalIgnoreCase)
|| string.Equals(tokenizedPath[0], CommonFilesLabel, StringComparison.OrdinalIgnoreCase)
|| string.Equals(tokenizedPath[0], ProgramDataLabel, StringComparison.OrdinalIgnoreCase))
{
var effectiveDepthLimit = options.DepthLimit;
if (tokenizedPath.Length > 1 &&
string.Equals(tokenizedPath[1], "Microsoft", StringComparison.OrdinalIgnoreCase))
{
effectiveDepthLimit += options.DepthBoostSpecial;
}
newValue = string.Join(@"\", tokenizedPath.Take(effectiveDepthLimit));
}
else if (string.Equals(tokenizedPath[0], UserProfilesRootLabel, StringComparison.OrdinalIgnoreCase))
{
var effectiveDepthLimit = options.DepthLimit;
if (tokenizedPath.Contains("microsoft", StringComparer.OrdinalIgnoreCase))
{
effectiveDepthLimit = effectiveDepthLimit + options.DepthBoostSpecial;
}
var includedTokens = new List<string> {tokenizedPath[0]};
includedTokens.AddRange(tokenizedPath.Skip(2).Take(effectiveDepthLimit));
newValue = string.Join(@"\", includedTokens);
}
else if (string.Equals(tokenizedPath[0], WinDirLabel))
{
var effectiveDepthLimit = options.DepthLimit;
if (tokenizedPath.Contains("wbem", StringComparer.OrdinalIgnoreCase))
{
effectiveDepthLimit = 3;
}
else if (tokenizedPath.Contains("winevt", StringComparer.OrdinalIgnoreCase))
{
effectiveDepthLimit = 4;
}
else if (tokenizedPath.Contains("config", StringComparer.OrdinalIgnoreCase))
{
effectiveDepthLimit = 4;
}
else if (tokenizedPath.Length > 3 &&
string.Equals(tokenizedPath[1], "system32", StringComparison.OrdinalIgnoreCase))
{
effectiveDepthLimit = 3;
}
newValue = string.Join(@"\", tokenizedPath.Take(effectiveDepthLimit));
}
else
{
newValue = string.Join(@"\", tokenizedPath.Take(options.DepthLimit));
}
newValue = Regex.Replace(newValue, @"[\dA-Fa-f]{4,}", "%N%");
return newValue.Length > options.LengthLimit ? newValue.Substring(0, options.LengthLimit) : newValue;
}