数据库缓存学习笔记的相关内容

文章 2024-02-29 来自：开发者社区

数据库缓存一致性学习笔记(一)

引言随着业务的不断发展，数据和访问量在不断地增大，性能问题开始逐步摆在了我们的眼前，仔细分析会发现我们的性能瓶颈大致出在了我们的关系型数据库上，我们的关系型数据库虽然会将数据加载到缓存，但是大部分数据还是在磁盘上，你知道磁盘很慢，参考资料[1]对机械硬盘和固态硬盘进行了测试，参考资料[1]的机械硬盘读写速度只有70MB/s左右, 参考资料[1]固态最好成绩达到了2773MB...

文章 2016-05-20 来自：开发者社区

HTML5权威指南--Web Storage,本地数据库,本地缓存API,Web Sockets API,Geolocation API(简要学习笔记二)

1.Web Storage HTML5除了Canvas元素之外，还有一个非常重要的功能那就是客户端本地保存数据的Web Storage功能。以前都是用cookies保存用户名等简单信息。但是cookie有下面几个问题： a:大小：cookies的大小被限制在4KB b:带宽：cookies随HTTP事务一起被发送，因此会浪费一部分发送的cookies时使用的带宽。 c:复杂性：要...

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更新时间 2024-03-01 16:49:27

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