预取地址也依赖于cache的层级。最高级的cache,直接与CPU连接,此时它可以获得准确且完整的CPU访问行为,但是将数据预取到最高级的cache中,如果cache本来就会命中,那么在最高级cache中实现的prefetcher就会浪费资源。相反,在最低级的cache中,它接触到的访问次序都已经被上层cache过滤掉了,因此只会接触到上层cache miss的...
cache (if present), external cache (if present), main memory latency, and TLB miss latency. As a rough guide, you may be able to extract the latencies of the various parts as follows, but you should really look at the graphs, since these rules of thumb do not always work (some ...
Additional navigation options Files 1b59cce doc results scripts src Makefile TODO bench.h busy.c bw_file_rd.c bw_mem.c bw_mmap_rd.c bw_pipe.c bw_tcp.c bw_udp.c bw_unix.c cache.c clock.c disk.c enough.c flushdisk.c getopt.c ...