From fb96ec1686bf6c49bf65c8177a48b4ee551598fb Mon Sep 17 00:00:00 2001
From: Abhishek Kona <abhishekk@fb.com>
Date: Thu, 25 Apr 2013 13:36:47 -0700
Subject: [PATCH] [RocksDB] Print all internally collected histograms in
 db_bench. Also print p95

Summary: $title

Test Plan: make db_bench . run db_bench and check for expected output

Reviewers: haobo, dhruba

Reviewed By: haobo

CC: leveldb

Differential Revision: https://reviews.facebook.net/D10521
---
 db/db_bench.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/db/db_bench.cc b/db/db_bench.cc
index 2ce0356c6..621198e89 100644
--- a/db/db_bench.cc
+++ b/db/db_bench.cc
@@ -695,9 +695,10 @@ class Benchmark {
   void PrintHistogram(Histograms histogram_type, std::string name) {
     HistogramData histogramData;
     dbstats->histogramData(histogram_type, &histogramData);
-    fprintf(stdout, "%s statistics : \n", name.c_str());
-    fprintf(stdout, "Median : %f\n",histogramData.median);
-    fprintf(stdout, "99ile : %f\n", histogramData.percentile99);
+    fprintf(stdout, "%s statistics Percentiles :", name.c_str());
+    fprintf(stdout, "50 : %f ",histogramData.median);
+    fprintf(stdout, "95 : %f ", histogramData.percentile95);
+    fprintf(stdout, "99 : %f\n", histogramData.percentile99);
   }
 
   void PrintStatistics() {
@@ -718,6 +719,7 @@ class Benchmark {
           dbstats->getTickerCount(COMPACTION_KEY_DROP_USER));
       PrintHistogram(DB_GET, "DB_GET");
       PrintHistogram(DB_WRITE, "DB_WRITE");
+      PrintHistogram(COMPACTION_TIME, "COMPACTION_TIME");
     }
   }