intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 40 insertions, 0 deletions

diff --git a/library/cpp/monlib/counters/histogram.cpp b/library/cpp/monlib/counters/histogram.cpp
new file mode 100644
index 0000000000..46cf4e6ec8
--- /dev/null
+++ b/library/cpp/monlib/counters/histogram.cpp
@@ -0,0 +1,40 @@
+#include "histogram.h"
+
+namespace NMonitoring {
+    void THistogramSnapshot::Print(IOutputStream* out) const {
+        (*out) << "mean: " << Mean
+               << ", stddev: " << StdDeviation
+               << ", min: " << Min
+               << ", max: " << Max
+               << ", 50%: " << Percentile50
+               << ", 75%: " << Percentile75
+               << ", 90%: " << Percentile90
+               << ", 95%: " << Percentile95
+               << ", 98%: " << Percentile98
+               << ", 99%: " << Percentile99
+               << ", 99.9%: " << Percentile999
+               << ", count: " << TotalCount;
+    }
+
+    void THdrHistogram::TakeSnaphot(THistogramSnapshot* snapshot) {
+        with_lock (Lock_) {
+            // TODO: get data with single traverse
+            snapshot->Mean = Data_.GetMean();
+            snapshot->StdDeviation = Data_.GetStdDeviation();
+            snapshot->Min = Data_.GetMin();
+            snapshot->Max = Data_.GetMax();
+            snapshot->Percentile50 = Data_.GetValueAtPercentile(50.0);
+            snapshot->Percentile75 = Data_.GetValueAtPercentile(75.0);
+            snapshot->Percentile90 = Data_.GetValueAtPercentile(90.0);
+            snapshot->Percentile95 = Data_.GetValueAtPercentile(95.0);
+            snapshot->Percentile98 = Data_.GetValueAtPercentile(98.0);
+            snapshot->Percentile99 = Data_.GetValueAtPercentile(99.0);
+            snapshot->Percentile999 = Data_.GetValueAtPercentile(99.9);
+            snapshot->TotalCount = Data_.GetTotalCount();
+
+            // cleanup histogram data
+            Data_.Reset();
+        }
+    }
+
+}