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README.en.md
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README.en.md
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# oncn-bwm
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#### Description
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Pod bandwidth management in mixed deployment scenarios of online and offline services
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#### Software Architecture
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Software architecture description
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#### Installation
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1. xxxx
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2. xxxx
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3. xxxx
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#### Instructions
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1. xxxx
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2. xxxx
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3. xxxx
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#### Contribution
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1. Fork the repository
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2. Create Feat_xxx branch
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3. Commit your code
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4. Create Pull Request
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#### Gitee Feature
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1. You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
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2. Gitee blog [blog.gitee.com](https://blog.gitee.com)
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3. Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
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4. The most valuable open source project [GVP](https://gitee.com/gvp)
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5. The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
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6. The most popular members [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
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README.md
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README.md
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# oncn-bwm
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#### 介绍
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Pod bandwidth management in mixed deployment scenarios of online and offline services
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## 介绍
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#### 软件架构
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软件架构说明
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本特性通过区分在线、离线业务从而既能保证在线业务带宽的需求，还能保证充分的利用网络带宽资源。
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具体提供了下列功能：
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### 支持设置Pod网络优先级
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1. 以执行bwmcli命令的方式设置某个cgroup的网络优先级，执行bwmcli命令时需要指定的参数包括：cgrp_path、prio
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2. 优先级默认值为0，0标识为在线业务，-1标识为离线业务。
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#### 安装教程
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### 支持设置离线业务网络带宽限制
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1. Pod网络带宽限制对所有离线业务生效，所有离线业务的总带宽不能超过设置的网络带宽限制，在线业务没有网络带宽限制。
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2. 以执行bwmcli命令的方式设置一个主机/虚拟机的离线业务网络带宽限制，执行bwmcli命令时需要指定的参数包括：允许使用的：最低带宽(KB/MB/GB)，最高带宽(KB/MB/GB)
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3. 网络带宽限制特性与水线特性共同完成离线业务带宽限制，当在线业务带宽低于设置的水线时：离线业务允许使用设置的最高带宽，当在线业务带宽高于设置的水线时，离线业务允许使用设置的最低带宽。
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1. xxxx
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2. xxxx
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3. xxxx
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### 支持设置在线业务水线
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1. 以执行bwmcli命令的方式设置一个主机/虚拟机的在线业务的水线，执行bwmcli命令时需要指定的参数包括：水线值(KB/MB/GB)
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2. 当一个主机上所有在线业务的总带宽高于水线时，会限制离线业务可以使用的带宽，反之当一个主机上所有在线业务的总带宽低于水线时，会提高离线业务可以使用的带宽。
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3. 判断在线业务的总带宽是否超过/低于设置的水线的时机：每10ms判断一次，根据每个10ms内统计的在线带宽是否高于水线来决定对离线业务采用的带宽限制。
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#### 使用说明
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### 支持使能/除能Pod网络Qos功能
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1. 以执行bwmcli命令的方式来使能/除能一个网卡的Qos功能，执行bwmcli命令时需要指定的参数包括：网卡名，不指定网卡名则默认操作主机上的所有网卡。
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2. 一个主机上的所有使能Qos功能的网卡在实现内部被当成一个整体看待，也就是共享设置的水线和网络带宽限制。
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1. xxxx
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2. xxxx
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3. xxxx
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## 软件架构
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```
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oncn-bwm
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│ bwmcli.c # bwmcli命令行工具
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│ bwmcli.h
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│ CMakeLists.txt
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│ LICENSE
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│ README.md
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│
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├─bpf # 两个ebpf程序文件实现带宽管理逻辑
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│
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└─tools # 在离线带宽检测工具，基于bpftrace
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```
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#### 参与贡献
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## 安装教程
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1. yum install oncn-bwm
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## 使用说明
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### 接口说明
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**接口1**
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说明
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```
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bwmcli –e/-d ethx 使能/除能某个网卡的Qos功能
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bwmcli –e/-d 使能/除能所有网卡的Qos功能
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```
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示例
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```
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# bwmcli –e eth0 –e eth1
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enable eth0 success
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enable eth1 success
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# bwmcli –d eth0 –d eth1
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disable eth0 success
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disable eth1 success
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```
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**接口2**
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说明
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```
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bwmcli –s path <prio> 设置某个cgroup的优先级
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bwmcli –p path 查询某个cgroup的优先级
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```
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示例
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```
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# bwmcli -s /sys/fs/cgroup/net_cls/test_online 0
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set prio success
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# bwmcli -p /sys/fs/cgroup/net_cls/test_online
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prio is 0
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```
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**接口3**
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说明
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```
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bwmcli –s bandwidth <low,high> 设置离线带宽
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bwmcli –p bandwidth 查询离线带宽
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```
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示例
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```
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# bwmcli -s bandwidth 30mb,100mb
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set bandwidth success
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# bwmcli -p bandwidth
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bandwidth is 31457280(B),104857600(B)
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```
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**接口4**
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说明
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```
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bwmcli –s waterline <val> 设置在线水线
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bwmcli –p waterline 查询在线水线
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```
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示例
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```
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# bwmcli -s waterline 20mb
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set waterline success
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# bwmcli -p waterline
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waterline is 20971520 (B)
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```
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**接口5**
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说明
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```
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bwmcli –p stats 打印内部统计信息
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```
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示例
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```
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# bwmcli -p stats
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rate: 1073741824
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online_pkts: 79752
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offline_pkts: 69730
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online rate past: 0
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offline rate past: 916194823
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```
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**接口6**
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说明
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```
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bwmcli –p devs 描述系统上所有网卡的使能状态
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```
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示例
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```
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# bwmcli –p devs
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lo : disabled
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enp2s2 : disabled
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```
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### 典型使用案例
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```
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bwmcli -p devs 查询系统当前网卡使能状态
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bwmcli -s /sys/fs/cgroup/net_cls/online 0
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bwmcli -s /sys/fs/cgroup/net_cls/offline -1
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bwmcli -e eth0 使能eth0的网卡 Qos功能
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bwmcli -s bandwidth 20mb,1gb 配置离线业务带宽
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bwmcli -s waterline 30mb 配置在线业务的水线
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```
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## 参与贡献
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1. Fork 本仓库
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2. 新建 Feat_xxx 分支
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@ -27,7 +157,7 @@ Pod bandwidth management in mixed deployment scenarios of online and offline ser
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4. 新建 Pull Request
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#### 特技
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## 特技
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1. 使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md
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2. Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com)
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BIN
oncn-bwm-1.0.tar.gz
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BIN
oncn-bwm-1.0.tar.gz
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oncn-bwm.spec
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oncn-bwm.spec
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Name: oncn-bwm
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Version: 1.0
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Release: 1
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Summary: Pod bandwidth management in mixed deployment scenarios of online and offline services
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License: GPL-2.0
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URL: https://gitee.com/src-openeuler/oncn-bwm
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Source: %{name}-%{version}.tar.gz
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BuildRequires: libbpf-devel cmake gcc clang
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Requires: iproute libbpf
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Requires(preun): bpftool
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%description
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Pod bandwidth management in mixed deployment scenarios of online and offline services
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%package -n oncn-bwm-devel
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Summary: devel tools for oncn-bwm
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Requires: bpftrace
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%description -n oncn-bwm-devel
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devel tools for oncn-bwm
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%prep
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%autosetup -n %{name}-%{version} -p1
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%build
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mkdir build && cd build &&
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cmake ..
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make
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%install
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mkdir -p %{buildroot}/%{_bindir}/%{name}
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mkdir -p %{buildroot}/usr/share/bwmcli
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install -Dpm 0500 %{_builddir}/%{name}-%{version}/build/bpf/CMakeFiles/bwm_prio_kern.dir/bwm_prio_kern.c.o %{buildroot}/usr/share/bwmcli/bwm_prio_kern.o
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install -Dpm 0500 %{_builddir}/%{name}-%{version}/build/bpf/CMakeFiles/bwm_tc.dir/bwm_tc.c.o %{buildroot}/usr/share/bwmcli/bwm_tc.o
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install -Dpm 0500 %{_builddir}/%{name}-%{version}/build/bwmcli %{buildroot}/%{_bindir}
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install -Dpm 0500 %{_builddir}/%{name}-%{version}/tools/bwm_monitor.bt %{buildroot}/%{_bindir}
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%preun
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DisableAllDevices()
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{
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local CGROUP2PATH
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local CGROUP2ID
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local tempfile
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for NETPID in $(lsns -t net | grep net -w | awk '{print $4}'); do
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nsenter -n -t${NETPID} bwmcli -d >/dev/null
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done
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mount |grep "type cgroup2" >/dev/null
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if [ $? -ne 0 ]; then
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tempfile=`mktemp -d`;
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mount none -t cgroup2 $tempfile;
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fi
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for CGROUP2VAL in $(bpftool cgroup tree |grep _bwm_out_cg -B 1 | awk '{print $1}'); do
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if [[ $CGROUP2VAL = /* ]]; then
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CGROUP2PATH=$CGROUP2VAL >/dev/null
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else
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CGROUP2ID=$CGROUP2VAL
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bpftool cgroup detach $CGROUP2PATH egress id $CGROUP2ID >/dev/null
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fi
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done
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if [ -n "$tempfile" ]; then
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umount $tempfile
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rm -rf $tempfile
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fi
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rm -f /sys/fs/bpf/tc/globals/throttle_map >/dev/null
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rm -f /sys/fs/bpf/tc/globals/throttle_cfg >/dev/null
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}
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if [ $1 -eq 0 ]; then
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DisableAllDevices
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fi
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%files
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%defattr(-,root,root)
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%attr(0500,root,root) %{_bindir}/bwmcli
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%attr(0500,root,root) /usr/share/bwmcli/bwm_prio_kern.o
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%attr(0500,root,root) /usr/share/bwmcli/bwm_tc.o
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%files -n oncn-bwm-devel
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%attr(0500,root,root) %{_bindir}/bwm_monitor.bt
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%changelog
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* Thu Jul 14 2022 wo_cow <niuiqianqian@huawei.com> - 1.0-1
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- init oncn-bwm
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