我在cpu核心12中有一个隔离cpu,我执行以下perf命令:
sudo perf stat -e DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK,ITLB_MISSES.MISS_CAUSES_A_WALK,DTLB_STORE_MISSES.MISS_CAUSES_A_WALK,cache-references,cache-misses -C 12 sleep 10
Performance counter stats for 'CPU(s) 12':
0 DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK
4 ITLB_MISSES.MISS_CAUSES_A_WALK
0 DTLB_STORE_MISSES.MISS_CAUSES_A_WALK
210 cache-references
176 cache-misses # 83.810 % of all cache refs
通常,我将perf cache-misses用于进程,如何解释这一点:cpu核心的cache-misses?!