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Original Task Manager creator explains why it lies to you about CPU usage — former Microsoft engineer shows unique solution to a seemingly simple, but actually complicated, task

Tom's Hardware·Jowi Morales·6 months ago
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#nvidia#benchmarking#intelarc#microsoft#time#usage
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(Image credit: Dave's Garage/YouTube) Former Microsoft engineer Dave Plummer, who has worked on iconic projects like adding ZIP file support to Windows and the Windows NT Start Menu , revealed how the Task Manager actually reads CPU usage. Plummer built the original Task Manager , and made the tool so simple (in programming and engineering terms) to ensure that it does not use up your computer’s resources unnecessarily. However, there have also been some complaints that it sometimes felt that the numbers it showed were a bit off, so he explained why looking up CPU usage is quite complicated, how Task Manager gets the CPU utilization numbers, and why it might show results that are a bit different from what you see and feel on your PC. “But measuring CPU usage sounds like it ought to be one of the easiest jobs in computing — I mean, either the CPU is busy, or it’s not, right? It’s silicon, not interpretative dance.…

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