CPU Utilization Is Wrong

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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).

Watch Brendan’s talk to learn how you can use Netflix’s methods to determine what your CPUs are really doing to impact performance.

Read more at OpenSource.com