memory Database 的相关内容

文章 2023-07-18 来自：开发者社区

Managing Non-Volatile Memory in Database Systems

Managing Non-Volatile Memory in Database Systems一、背景及动机1、几种场景的NVM存储方式NVM-DIRECT将nvm放到内存总线上，直接访问。数据和WAL日志都在NVM上。但是CPU CACHE中的内容易失且刷写到NVM的时机和顺序都不受控制，所以为保证持久化及数据一致性需要调用命令clwb和sfence来确保。优势：日志量少，轻量日志，恢复高效....

文章 2022-02-16 来自：开发者社区

2014 OLTP Memory Database lock 测试

根据微软的说法，由于内存数据库使用了乐观并发控制，所以事务不需要锁来锁定资源保证一致性。微软认为在内存数据库的事务中冲突和失败是非常少的情况，所以假定所有的并行事务都是成功的。因此写不会阻塞读，写也不阻塞写。下面是原文：Transactionsin Memory-Optimized Tables Instead, transactions pr...

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更新时间 2024-07-21 12:22:20

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