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Diffstat (limited to 'src/leveldb/util/histogram.h')
-rw-r--r-- | src/leveldb/util/histogram.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/leveldb/util/histogram.h b/src/leveldb/util/histogram.h deleted file mode 100644 index 1ef9f3c8a..000000000 --- a/src/leveldb/util/histogram.h +++ /dev/null @@ -1,42 +0,0 @@ -// Copyright (c) 2011 The LevelDB Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. See the AUTHORS file for names of contributors. - -#ifndef STORAGE_LEVELDB_UTIL_HISTOGRAM_H_ -#define STORAGE_LEVELDB_UTIL_HISTOGRAM_H_ - -#include <string> - -namespace leveldb { - -class Histogram { - public: - Histogram() { } - ~Histogram() { } - - void Clear(); - void Add(double value); - void Merge(const Histogram& other); - - std::string ToString() const; - - private: - double min_; - double max_; - double num_; - double sum_; - double sum_squares_; - - enum { kNumBuckets = 154 }; - static const double kBucketLimit[kNumBuckets]; - double buckets_[kNumBuckets]; - - double Median() const; - double Percentile(double p) const; - double Average() const; - double StandardDeviation() const; -}; - -} // namespace leveldb - -#endif // STORAGE_LEVELDB_UTIL_HISTOGRAM_H_ |