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▎ Field notes: mostly bugs that took longer to find than to fix.

My laptop felt slow: the CPU was stuck at 800 MHz

Chrome stuttered, and so did everything else. RAM was free, the SSD was idle and the CPU was cool, because a firmware signal had pinned a 4.5 GHz processor to its slowest possible state. How I found it, and how you can check the same thing on your machine.

Linux Hardware Performance Debugging
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