Remove telemetry probes to get detailed disk cache hit rate.

Tag #21.

1 files changed, 0 insertions, 95 deletions

diff --git a/netwerk/cache2/CacheFileUtils.cpp b/netwerk/cache2/CacheFileUtils.cpp
index fe1a53b3d..a090a9cb1 100644
--- a/netwerk/cache2/CacheFileUtils.cpp
+++ b/netwerk/cache2/CacheFileUtils.cpp
@@ -401,101 +401,6 @@ ValidityMap::operator[](uint32_t aIdx)
   return mMap.ElementAt(aIdx);
 }
 
-StaticMutex DetailedCacheHitTelemetry::sLock;
-uint32_t DetailedCacheHitTelemetry::sRecordCnt = 0;
-DetailedCacheHitTelemetry::HitRate DetailedCacheHitTelemetry::sHRStats[kNumOfRanges];
-
-DetailedCacheHitTelemetry::HitRate::HitRate()
-{
-  Reset();
-}
-
-void
-DetailedCacheHitTelemetry::HitRate::AddRecord(ERecType aType)
-{
-  if (aType == HIT) {
-    ++mHitCnt;
-  } else {
-    ++mMissCnt;
-  }
-}
-
-uint32_t
-DetailedCacheHitTelemetry::HitRate::GetHitRateBucket(uint32_t aNumOfBuckets) const
-{
-  uint32_t bucketIdx = (aNumOfBuckets * mHitCnt) / (mHitCnt + mMissCnt);
-  if (bucketIdx == aNumOfBuckets) { // make sure 100% falls into the last bucket
-    --bucketIdx;
-  }
-
-  return bucketIdx;
-}
-
-uint32_t
-DetailedCacheHitTelemetry::HitRate::Count()
-{
-  return mHitCnt + mMissCnt;
-}
-
-void
-DetailedCacheHitTelemetry::HitRate::Reset()
-{
-  mHitCnt = 0;
-  mMissCnt = 0;
-}
-
-// static
-void
-DetailedCacheHitTelemetry::AddRecord(ERecType aType, TimeStamp aLoadStart)
-{
-  bool isUpToDate = false;
-  CacheIndex::IsUpToDate(&isUpToDate);
-  if (!isUpToDate) {
-    // Ignore the record when the entry file count might be incorrect
-    return;
-  }
-
-  uint32_t entryCount;
-  nsresult rv = CacheIndex::GetEntryFileCount(&entryCount);
-  if (NS_FAILED(rv)) {
-    return;
-  }
-
-  uint32_t rangeIdx = entryCount / kRangeSize;
-  if (rangeIdx >= kNumOfRanges) { // The last range has no upper limit.
-    rangeIdx = kNumOfRanges - 1;
-  }
-
-  uint32_t hitMissValue = 2 * rangeIdx; // 2 values per range
-  if (aType == MISS) { // The order is HIT, MISS
-    ++hitMissValue;
-  }
-
-  StaticMutexAutoLock lock(sLock);
-
-  sHRStats[rangeIdx].AddRecord(aType);
-  ++sRecordCnt;
-
-  if (sRecordCnt < kTotalSamplesReportLimit) {
-    return;
-  }
-
-  sRecordCnt = 0;
-
-  for (uint32_t i = 0; i < kNumOfRanges; ++i) {
-    if (sHRStats[i].Count() >= kHitRateSamplesReportLimit) {
-      // The telemetry enums are grouped by buckets as follows:
-      // Telemetry value : 0,1,2,3, ... ,19,20,21,22, ... ,398,399
-      // Hit rate bucket : 0,0,0,0, ... , 0, 1, 1, 1, ... , 19, 19
-      // Cache size range: 0,1,2,3, ... ,19, 0, 1, 2, ... , 18, 19
-      uint32_t bucketOffset = sHRStats[i].GetHitRateBucket(kHitRateBuckets) *
-                              kNumOfRanges;
-
-      sHRStats[i].Reset();
-    }
-  }
-}
-
 void
 FreeBuffer(void *aBuf) {
 #ifndef NS_FREE_PERMANENT_DATA