I saw an issue with my MacBook Pro running El Capitan with Chrome running that the kernel_task went haywire and started sucking up all the available CPU and the % cpu just kept climbing to where it was in the 30,000+% range and the computer was nearly completely unresponsive. Eventually, I had to force a reboot, because the shutdown command appeared to be making no progress. On reboot, it restarted chrome automatically, and again, the cpu started climbing. I forced reboot a second time, and Chrome did not relaunch, the computer started running more normally, I was able to relaunch chrome and not reload the tabs and all seems ok now. What was going on? Was there some kind of malware or virus coming in through a website on one of the Chrome tabs? I have Sophos anti-virus installed and running on this machine. Should I be concerned that my machine is somehow compromised now?
Is there a way to determine what program, driver, or plug-in is causing the high CPU load?