private void AnalyzePip(PipCacheMissInfo miss, Process pip, TextWriter writer)
{
string pipUniqueOutputHashStr = null;
if ((pip as Process).TryComputePipUniqueOutputHash(PathTable, out var pipUniqueOutputHash, m_model.CachedGraph.MountPathExpander))
{
pipUniqueOutputHashStr = pipUniqueOutputHash.ToString();
}
WriteLine(pip.GetDescription(PipGraph.Context));
var analysisResult = CacheMissAnalysisResult.Invalid;
if (m_newCacheLookupReader != null &&
miss.CacheMissType == PipCacheMissType.MissForDescriptorsDueToStrongFingerprints &&
m_newCacheLookupReader.Store.ContainsFingerprintStoreEntry(pip.FormattedSemiStableHash, pipUniqueOutputHashStr))
{
// Strong fingerprint miss analysis is most accurate when compared to the fingerprints computed at cache lookup time
// because those fingerprints capture the state of the disk at cache lookup time, including dynamic observations
var resultAndDetail = CacheMissAnalysisUtilities.AnalyzeCacheMiss(
miss,
() => m_oldReader.StartPipRecordingSession(pip, pipUniqueOutputHashStr),
() => m_newCacheLookupReader.StartPipRecordingSession(pip, pipUniqueOutputHashStr),
CacheMissDiffFormat);
analysisResult = resultAndDetail.Result;
m_writer?.WriteLine(JsonConvert.SerializeObject(resultAndDetail.Detail));
}
else
{
var resultAndDetail = CacheMissAnalysisUtilities.AnalyzeCacheMiss(
miss,
() => m_oldReader.StartPipRecordingSession(pip, pipUniqueOutputHashStr),
() => m_newReader.StartPipRecordingSession(pip, pipUniqueOutputHashStr),
CacheMissDiffFormat);
analysisResult = resultAndDetail.Result;
m_writer?.WriteLine(JsonConvert.SerializeObject(resultAndDetail.Detail));
}
if (analysisResult == CacheMissAnalysisResult.MissingFromOldBuild)
{
Tracing.Logger.Log.FingerprintStorePipMissingFromOldBuild(LoggingContext);
}
else if (analysisResult == CacheMissAnalysisResult.MissingFromNewBuild)
{
Tracing.Logger.Log.FingerprintStorePipMissingFromNewBuild(LoggingContext);
}
else if (analysisResult == CacheMissAnalysisResult.UncacheablePip)
{
Tracing.Logger.Log.FingerprintStoreUncacheablePipAnalyzed(LoggingContext);
}
}
private void AnalyzePip(PipCacheMissInfo miss, Process pip, TextWriter writer)
{
(pip as Process).TryComputePipUniqueOutputHash(PathTable, out var pipUniqueOutputHash, m_model.CachedGraph.MountPathExpander);
WriteLine(pip.GetDescription(PipGraph.Context));
var result = CacheMissAnalysisUtilities.AnalyzeCacheMiss(
writer,
miss,
() => m_oldReader.StartPipRecordingSession(pip, pipUniqueOutputHash.ToString()),
() => m_newReader.StartPipRecordingSession(pip, pipUniqueOutputHash.ToString()));
if (result == CacheMissAnalysisResult.MissingFromOldBuild)
{
Tracing.Logger.Log.FingerprintStorePipMissingFromOldBuild(LoggingContext);
}
else if (result == CacheMissAnalysisResult.MissingFromNewBuild)
{
Tracing.Logger.Log.FingerprintStorePipMissingFromNewBuild(LoggingContext);
}
else if (result == CacheMissAnalysisResult.UncacheablePip)
{
Tracing.Logger.Log.FingerprintStoreUncacheablePipAnalyzed(LoggingContext);
}
}
