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CPU Utilization is Wrong

brendangregg.com · first added by @afreshcup
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discussions · 4
CPU Utilization is Wrong 624 pts · 91 comments · May 2017 624 pts · 91 comments · May 2017
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CPU Utilization Is Wrong (2017) 94 pts · 57 comments · Jul 2023 94 pts · 57 comments · Jul 2023
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CPU Utilization is Wrong (2017) 40 pts · 5 comments · Sep 2025 40 pts · 5 comments · Sep 2025
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CPU Utilization Is Wrong 3 pts · 1 comment · Jul 2020 3 pts · 1 comment · Jul 2020
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from the discussion · 5
%CPU utilization is a lie brendanlong.com brendanlong.com
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https://github.com/torvalds/linux/blob/master/Documentation/cpu-load.txt github.com github.com
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https://blogs.oracle.com/partnertech/cpu-utilization-of-multi-threaded-architectures-explained blogs.oracle.com blogs.oracle.com
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GitHub - RRZE-HPC/likwid: Performance monitoring and benchmarking suite github.com github.com
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C2C - False Sharing Detection in Linux Perf - My Octopress Blog joemario.github.io joemario.github.io
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related HN threads · 1
%CPU utilization is a lie 437 pts · 168 comments · Sep 2025 437 pts · 168 comments · Sep 2025
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