A multiprocessor computer system is provided having a multiplicity of sub-systems and a main memory coupled to a system controller. An interconnect module, interconnects the main memory and sub-systems in accordance with interconnect control signals…
A technique for implementing read-copy update in a shared-memory computing system having two or more processors operatively coupled to a shared memory and to associated incoherent caches that cache copies of data stored in the memory. According to ex…
在非常早曾经,大概是2009年的时候.写过一篇关于Linux RCU锁的文章<RCU锁在linux内核的演变>,如今我承认.那个时候我尽管懂了RCU锁,可是我没有能力用一种非常easy的描写叙述把Linux的实现给展示出来,有道是你能给别人用你自己的方式非常简洁地描写叙述清楚,你才是真正的精通它.否则,无异于背诵.换个说法,假设你在被面试.在短时间内靠嘴说给面试官,且他还要能听明白,就说明自己真的懂了,这样的时候,是不会给你机会分析源码的,也不可能让你背诵源码.       时隔五年多,最近又…
只需要 执行 sudo rm /var/lib/dpkg/lock;     之后再次执行:sudo apt-get update…
Copied From:https://computing.llnl.gov/tutorials/parallel_comp/ Author: Blaise Barney, Lawrence Livermore National Laboratory UCRL-MI-133316 Table of Contents Abstract Overview What is Parallel Computing? Why Use Parallel Computing? Who is Using Para…
A non-inclusive cache system includes an external cache and a plurality of on-chip caches each having a set of tags associated therewith, with at least one of the on-chip caches including data which is absent from the external cache. A pipelined snoo…
A method includes storing, with a first programmable processor, shared variable data to cache lines of a first cache of the first processor. The method further includes executing, with the first programmable processor, a store-with-release operation,…
本文转自:https://docs.microsoft.com/en-us/aspnet/core/performance/caching/distributed By Steve Smith+ Distributed caches can improve the performance and scalability of ASP.NET Core apps, especially when hosted in a cloud or server farm environment. This…
@(MyBatis)[Cache] MyBatis源码分析--Cache构建以及应用 SqlSession使用缓存流程 如果开启了二级缓存,而Executor会使用CachingExecutor来装饰,添加缓存功能,该CachingExecutor会从MappedStatement中获取对应的Cache来使用.(注:MappedStatement中有保存相关联的Cache) 在使用SqlSession向DB查询数据时,如果开启了二级缓存,则会优先从二级缓存中获取数据,没有命中的话才会去查询一级缓…
@(MyBatis)[Cache] MyBatis Cache配置 MyBatis提供了一级缓存和二级缓存 配置 全局配置 配置 说明 默认值 可选值 cacheEnabled 全局缓存的开关 true true false localCacheScope 本地缓存,SESSION表示执行的sql结果缓存数据可以在同一个sqlSession共享,而STATEMENT,则同只有在单条语句会被缓存,两条语句不能共享缓存数据 SESSION SESSION STATEMENT <!-- 默认值 -->…