In May of last year, senior performance architect at Netflix, Brendan Gregg posted an interesting article about how the "%CPU" metric is wrong, and is progressively getting worse. Now, Brendan expands on his findings in a 5 minute video from the Southern California Linux Expo. The UpSCALE Lightning Talk from Opensource.com goes over his original idea very well, but also shows an interesting conclusion. Check out the video In his Lightning Talk, "CPU Utilization is Wrong," Brendan explains what CPU utilization means—and doesn't mean—about performance and shares the open source tools he uses to identify reasons for bottlenecks and tune Netflix's systems. He also includes a mysterious case study that's relevant to everyone in 2018.