CPU Utilization Is Wrong

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Linux.com - https://www.linux.com/news/cpu-utilization-wrong-1

Everyone uses %CPU to measure performance, but everyone is wrong, says Netflix’s Brendan Gregg in his UpSCALE Lightning Talk.

CPU utilization is the metric everyone uses to measure a processor’s performance. But %CPU is a misleading measure of how busy your processor really is, says Brendan Gregg, senior performance architect at Netflix, in what he calls a “five-minute public service announcement,” at the 16th annual Southern California Linux Expo (SCALE).

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