https://buvidk1234.github.io/tags/redis/Recent content in Redis on 我的技术博客Hugo -- 0.153.0zh-cnThu, 12 Feb 2026 09:52:26 +0800https://buvidk1234.github.io/posts/redis-datastructure/Thu, 12 Feb 2026 09:52:26 +0800https://buvidk1234.github.io/posts/redis-datastructure/<h1 id="redis-数据结构">Redis 数据结构</h1> <table> <thead> <tr> <th>逻辑类型 (Type)</th> <th>底层数据结构 (Internal Encoding)</th> </tr> </thead> <tbody> <tr> <td><strong>String</strong></td> <td>int, embstr, raw (SDS)</td> </tr> <tr> <td><strong>List</strong></td> <td>quicklist</td> </tr> <tr> <td><strong>Hash</strong></td> <td>listpack, hashtable</td> </tr> <tr> <td><strong>Set</strong></td> <td>intset, hashtable</td> </tr> <tr> <td><strong>ZSet</strong></td> <td>listpack, skiplist + hashtable</td> </tr> </tbody> </table> <div class="mermaid">graph TD A[redisObject] --> B{type} B -->|STRING| C[int / embstr / raw] B -->|LIST| D[quicklist] B -->|HASH| E{size?} B -->|SET| F{all int?} B -->|ZSET| G{size?} E -->|小| H[listpack] E -->|大| I[hashtable] F -->|yes & 少| J[intset] F -->|no| K[hashtable] G -->|小| L[listpack] G -->|大| M[skiplist + hashtable]</div><p>每种类型根据数据量自动切换编码：小数据用紧凑结构省内存，大数据切高效结构保性能。</p>