Reference docs: https://en.wikipedia.org/wiki/Scoreboarding SSC_course_5_Scoreboard_ex.pdf 1, what is scoreboarding A method to dynamically schedule pipelining in case of out-of-order execution when there’re no conflicts and hardware is available. Th…

https://en.wikipedia.org/wiki/Data_dependency (There’s some misleading expression on the flow/data dependency statement.) 1, what is data dependency A data dependency in computer science is a situation in which a program statement (instruction) refer…

Java:并发笔记-05 说明:这是看了 bilibili 上 黑马程序员 的课程 java并发编程 后做的笔记 4. 共享模型之内存 本章内容 上一章讲解的 Monitor 主要关注的是访问共享变量时,保证临界区代码的原子性 这一章我们进一步深入学习共享变量在多线程间的[可见性]问题与多条指令执行时的[有序性]问题 4.1 Java 内存模型 JMM 即 Java Memory Model,它定义了主存.工作内存抽象概念,底层对应着 CPU 寄存器.缓存.硬件内存.CPU 指令优化等. JMM…