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CPU Utilization is Wrong

brendangregg.com · first added by @afreshcup · 2026-09-30 · 2 upvotes

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* CPU Utilization is Wrong

624 pts · 91 comments · node

* CPU Utilization Is Wrong (2017)

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* CPU Utilization is Wrong (2017)

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* CPU Utilization Is Wrong

3 pts · 1 comment · node

─── From the discussion ────────────────────────────────

* %CPU utilization is a lie

brendanlong.com · node

* https://github.com/torvalds/linux/blob/master/Documentation/cpu-load.txt

github.com · node

* https://blogs.oracle.com/partnertech/cpu-utilization-of-multi-threaded-architectures-explained

blogs.oracle.com · node

* GitHub - RRZE-HPC/likwid: Performance monitoring and benchmarking suite

github.com · node

* C2C - False Sharing Detection in Linux Perf - My Octopress Blog

joemario.github.io · node

─── Related hn threads ─────────────────────────────────

* %CPU utilization is a lie

437 pts · 168 comments · node