Webb23 nov. 2024 · 动态观测程序的行为并产生相应的预取请求，这种方式称为硬件预取（hardware prefetching）。说简单些，就是用硬件根据某些规律去猜测处理器未来将要访问的数据地址。 顺序预取（sequential prefetching）检测并预取对连续区域进行访问的数据 … WebbHardware prefetching. The last-level (L2) caches contain hardware stream prefetchers that are trained on streams of misses and software prefetches. If a hardware prefetcher …

Primer on Hardware Prefetching - Babak Falsafi, Thomas F.

WebbPrefetching—predicting future memory accesses and issuing requests for the corresponding memory blocks in advance of explicit accesses—is an effective approach to hide memory access latency. There have been a myriad of proposed prefetching techniques, and nearly every modern processor includes some hardware prefetching … WebbBrowse, borrow, and enjoy titles from the Somerset County Library System digital collection. csu girls softball

Best-offset hardware prefetching

Webb1 maj 2014 · This primer offers an overview of the various classes of hardware prefetchers for instructions and data proposed in the research literature, and presents examples of … Webbspecialized hardware units dedicated to the task of fetching in new data. Part of the gap can even be eliminated with sophisticated programmer- and compiler-directed software-prefetching mechanisms [2, 4, 30, 41]. More ideal is a pure-microarchitecture technique that can do the same: achieving high performance for memory-latency- WebbOther types of prefetchers interact with hardware struc-tures [6], [26], [30], [31], [38], such as the branch predictor (e.g. BTB directed), to gain insights into the program’s exe-cution ahead of time, however they require intrusive changes in the processor design. Typically, prior work in prefetching has adopted look-ahead early staph scalded skin syndrome