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new 7a693926 Update bvar_c++.md (#1902)
7a693926 is described below
commit 7a69392648b7d5c813541f170da0f42bcb0cf269
Author: serverglen <[email protected]>
AuthorDate: Thu Aug 25 10:15:01 2022 +0800
Update bvar_c++.md (#1902)
---
docs/cn/bvar_c++.md | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/docs/cn/bvar_c++.md b/docs/cn/bvar_c++.md
index 3cc77036..dc5dddd0 100644
--- a/docs/cn/bvar_c++.md
+++ b/docs/cn/bvar_c++.md
@@ -2,14 +2,22 @@
- [bvar::Variable](#bvarvariable)
- [Export all variables](#export-all-variables)
- [bvar::Reducer](#bvarreducer)
- - [bvar::Adder](#bvaradder)
- - [bvar::Maxer](#bvarmaxer)
- - [bvar::Miner](#bvarminer)
+ - [bvar::Adder](#bvaradder)
+ - [bvar::Maxer](#bvarmaxer)
+ - [bvar::Miner](#bvarminer)
- [bvar::IntRecorder](#bvarintrecorder)
- [bvar::LatencyRecorder](#bvarlatencyrecorder)
- [bvar::Window](#bvarwindow)
+ - [How to use bvar::Window](#how-to-use-bvarwindow)
- [bvar::PerSecond](#bvarpersecond)
- - [和Window的差别](#和window的差别)
+ - [Difference with Window](#difference-with-window)
+- [bvar::WindowEx](#bvarwindowex)
+ - [How to use bvar::WindowEx](#how-to-use-bvarwindowex)
+ - [Difference between bvar::WindowEx and
bvar::Window](#difference-between-bvarwindowex-and-bvarwindow)
+- [bvar::PerSecondEx](#bvarpersecondex)
+ - [How to use bvar::PerSecondEx](#how-to-use-bvarpersecondex)
+ - [Difference between bvar::PerSecondEx and
bvar::WindowEx](#difference-between-bvarpersecondex-and-bvarwindowex)
+ - [Difference between bvar::PerSecondEx and
bvar::PerSecond](#difference-between-bvarpersecondex-and-bvarpersecond)
- [bvar::Status](#bvarstatus)
- [bvar::PassiveStatus](#bvarpassivestatus)
- [bvar::GFlag](#bvargflag)
@@ -423,7 +431,7 @@ template <typename R>
class Window : public Variable;
```
-## 如何使用
+## How to use bvar::Window
```c++
bvar::Adder<int> sum;
bvar::Maxer<int> max_value;
@@ -461,7 +469,7 @@ bvar::PerSecond<bvar::Maxer<int> >
max_value_per_second_wrong(&max_value);
bvar::Window<bvar::Maxer<int> > max_value_per_second(&max_value, 1);
```
-## 和Window的差别
+## Difference with Window
比如要统计内存在上一分钟内的变化，用Window<>的话，返回值的含义是”上一分钟内存增加了18M”，用PerSecond<>的话，返回值的含义是“上一分钟平均每秒增加了0.3M”。
@@ -496,7 +504,7 @@ public:
};
```
-## 如何使用
+## How to use bvar::WindowEx
```c++
const int window_size = 60;
@@ -523,7 +531,7 @@ int64_t avg_int = avg_stat.get_average_int();
double avg_double = avg_stat.get_average_double();
```
-## bvar::WindowEx和bvar::Window的区别
+## Difference between bvar::WindowEx and bvar::Window
- bvar::Window
不能独立存在，必须依赖于一个已有的计数器。Window会自动更新，不用给它发送数据；window_size是通过构造函数参数传递的。
@@ -557,7 +565,7 @@ public:
};
```
-## 如何使用
+## How to use bvar::PerSecondEx
```c++
const int window_size = 60;
@@ -567,11 +575,11 @@ bvar::PerSecondEx<bvar::Adder<int>, window_size>
sum_per_second("sum_per_second"
sum_per_second << 1 << 2 << 3;
```
-## bvar::PerSecondEx和bvar::WindowEx的区别
+## Difference between bvar::PerSecondEx and bvar::WindowEx
-- 获得之前一段时间内平均每秒的统计值。它和WindowEx基本相同，除了返回值会除以时间窗口之外。
+- bvar::PerSecondEx 获得之前一段时间内平均每秒的统计值。它和WindowEx基本相同，除了返回值会除以时间窗口之外。
-## bvar::PerSecondEx和bvar::PerSecond的区别
+## Difference between bvar::PerSecondEx and bvar::PerSecond
- bvar::PerSecond
不能独立存在，必须依赖于一个已有的计数器。PerSecond会自动更新，不用给它发送数据；window_size是通过构造函数参数传递的。
- bvar::PerSecondEx
是独立存在的，不依赖其他的计数器，需要给它发送数据。使用起来比较方便；window_size是通过模板参数传递的，省略最后一个window_size(时间窗口)的话默认为bvar_dump_interval。
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