From 463642ff61319b17b3371ee1fd6d6382b35ef476 Mon Sep 17 00:00:00 2001
From: kernelai <redtomato158@gmail.com>
Date: Fri, 21 Jan 2022 10:12:54 +0000
Subject: [PATCH] =?UTF-8?q?optimize=EF=BC=9Aremove=20calculate=20differenc?=
 =?UTF-8?q?e=20value=20in=20histogram?=
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---
 util/histogram.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/util/histogram.cc b/util/histogram.cc
index 7af4030..5d89eed 100644
--- a/util/histogram.cc
+++ b/util/histogram.cc
@@ -216,8 +216,7 @@ double Histogram::Percentile(double p) const {
       double left_point = (b == 0) ? 0 : kBucketLimit[b - 1];
       double right_point = kBucketLimit[b];
       double left_sum = sum - buckets_[b];
-      double right_sum = sum;
-      double pos = (threshold - left_sum) / (right_sum - left_sum);
+      double pos = (threshold - left_sum) / buckets_[b];
       double r = left_point + (right_point - left_point) * pos;
       if (r < min_) r = min_;
       if (r > max_) r = max_;