Java Tech Enthusiast
May 23, 2024 · Operations
Understanding CPU Hardware Efficiency and Using Linux perf for Performance Monitoring
CPU efficiency depends on low CPI and high cache‑hit rates, which can be measured on Linux using the high‑level perf utility or the low‑level perf_event_open syscall to read hardware performance counters for cycles, instructions, and cache‑miss statistics, revealing how often the processor falls back to slower memory.
CPICPUCache Miss Rate
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