任务+队列 易用 效率 性能 底层是开源的 底层地址:https://opensource.apple.com/tarballs/libdispatch/ 主要功能 创建管理Queue 提交job Dispatch Group 管理Dispatch Object 信号量Semaphore 队列屏障 Barrier Dispatch Source Queue Context数据 Dis... V
The set Union Function Associative Containers Forms the set union of the elements in the sorted sequence first1...last1 and the elements in the sorted sequence first2...last2. result is the output iterator to the initial position of the range where the resulting union set sequence is stored...
Although prefetching instructions provides a queue of available instructions for the microprocessor, prefetching instructions from memory in the sequential order (e.g. in the address order of the instructions) does not necessarily provide instructions in the program order. Specifically, branch instructions...
a miss in a write-back cache will often require two memory accesses to service the request. There are intermediate policies as well. The cache may be write-through, but the writes may be held in a queue temporarily, usually so that multiple stores can be processed together which can reduce...
A set associative cache memory, comprising: an array of storage elements arranged as M sets by N ways; an allocation unit that allocates the storage elements in response to memory a