• Memory 内存知识-21-影响缓存命中的因素之关键词加载
  Critical Word Load（关键词加载） Memory is transferred from the main memory into the caches in blocks which are smaller than the cache line size. Today 64 bits are transferred at once and the cache line...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-20-影响缓存命中的因素
  Cache Miss Factors We have already seen that when memory accesses miss the caches the costs skyrocket（飞涨）. Sometimes this is not avoidable and it is important to understand the actual costs and w...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-19-指令缓存
  Instruction Cache Not just the data used by the processor is cached; the instructions executed by the processor are also cached. However, this cache is much less problematic（问题） than the data ca...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-18-缓存实现的细节之其他
  Other Details So far we talked about the address as consisting of threeparts, tag, set index, and cache line offset. But what address is actually used? All relevant processors today provide virtu...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-17-缓存实现的细节之超线程 Hyper Thread
  Special Case: Hyper-Threads Hyper-Threads (sometimes called Symmetric Multi-Threading（对称多线程）, SMT) are implemented by the CPU and are a special case since the individual threads（单个线程） cannot reall...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-16-缓存实现的细节之多线程访问
  Multi Threaded Access Multi Threaded Access To ensure that the gravity（重力） of the problems introduced by concurrently using the same cache lines on different processors is understood, we will look...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-14-缓存实现的细节之多处理器支持
  回顾 In the previous section we have already pointed out the problem we have when multiple processors come into play. Even multi-core processors have the problem for those cache levels which are no...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-14-缓存实现的细节之写入行为
  Write Behavior Before we start looking at the cache behavior when multiple execution contexts (threads or processes) use the same memory we have to explore a detail of cache implementations. Cach...
  2019-05-10 03:08:59 | Memory