• Memory 内存知识-23-影响缓存命中的因素之FSB
  FSB Influence The FSB plays a central role in the performance of the machine. Cache content can only be stored and loaded as quickly as the connection to the memory allows. We can show how much ...
  2019-05-10 03:08:59 | Memory
• Memory 内存知识-22-影响缓存命中的因素之缓存替换
  Cache Placement Where the caches are placed in relationship to the hyperthreads（超级线程）, cores, and processors is not under control of the programmer. But programmers can determine（确认） where the th...
  2019-05-10 03:08:59 | Memory
• 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