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修改 10.obap-overview.md
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obdev authored and ob-robot committed Jun 27, 2024
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Expand Up @@ -81,8 +81,8 @@ sysctl -p
sysctl kernel.numa_balancing=0
```

* Run the following command to disable the memory reclamation and reallocation functionality:

```shell
* Run the following command to disable the memory reclamation and reallocation functionality:

```shell
sysctl vm.zone_reclaim_mode=0
```
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Expand Up @@ -25,9 +25,9 @@ sudo vim /etc/sysctl.conf
fs.aio-max-nr=1048576

## 网络优化
net.core.somaxconn = 2048
net.core.netdev_max_backlog = 10000
net.core.rmem_default = 16777216
net.core.somaxconn = 2048
net.core.netdev_max_backlog = 10000
net.core.rmem_default = 16777216
net.core.wmem_default = 16777216
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
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* bios/uefi 及内核启动参数开启 NUMA 支持。

* 关闭 NUMA Balancing,避免平衡过程中性能发生抖动,命令如下。

```shell
sysctl kernel.numa_balancing=0

```shell
sysctl kernel.numa_balancing=0
```

* 禁用内存回收和重新分配功能,命令如下。
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7 changes: 7 additions & 0 deletions zh-CN/620.obap/10.obap-overview.md
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Expand Up @@ -6,6 +6,13 @@ OceanBase 是一款完全自研的企业级原生分布式数据库,在普通

![ap-intro](https://obbusiness-private.oss-cn-shanghai.aliyuncs.com/doc/img/observer/ap/ap-intro-1.png)

<div role="videolist">
<a role='video' data-code='9001545' href='https://obbusiness-private.oss-cn-shanghai.aliyuncs.com/video-center/video/video/ap%20%E5%AE%9E%E6%97%B6%E5%88%86%E6%9E%90.mp4'>
<img src='https://mdn.alipayobjects.com/huamei_22khvb/afts/img/A*DFPmToHK6hgAAAAAAAAAAAAADiGDAQ/original'/>
通过视频和 Demo 了解 OceanBase 实时分析
</a>
</div>

## 核心优势

* **稳定可靠**
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Expand Up @@ -45,9 +45,9 @@ tablespace_encryption_option:
* `AES-128`:使用 128 位密钥进行加密和解密。
* `AES-128-GCM`:使用 128 位密钥的 GCM 模式。
* `AES-192`:使用 192 位密钥进行加密和解密。
* `AES-192-GCM`:使用 192 位密钥的 GCM 模式。
* `SM4-CBC`:SM4 算法采用 CBC 模式,其中每个数据块都与前一个块加密后的输出进行异或操作再进行加密。
* `SM4-GCM`:SM4 算法采用 GCM 模式,此模式下 SM4 同时提供了数据加密和认证功能。
* `AES-192-GCM`:使用 192 位密钥的 GCM 模式。
* `SM4-CBC`:SM4 算法采用 CBC 模式,其中每个数据块都与前一个块加密后的输出进行异或操作再进行加密。
* `SM4-GCM`:SM4 算法采用 GCM 模式,此模式下 SM4 同时提供了数据加密和认证功能。

<main id="notice" type='explain'>
<h4>说明</h4>
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