Hi, a couple of days ago I noticed that simply opening Chrome caused my CPU usage to shoot up to 100%. I hadn't installed any new software or add-ons. I tried deleting the add-ons with no change... still 100%. I opened Firefox, which I use as my backup browser and everything ran fine, no extreme CPU usage. Has anybody experienced anything similar? I tried googling, but the threads I found with a similar topic all died quickly without any proper explanation of the problem or a solution to it. Now, I've imported all my settings to Firefox and it's doing a great job, but I've been using Chrome for so long now, that I feel much more comfortable in its environment. Any help would be appreciated!
You can use process monitor to spy specifically after the Chrome process to see what is it doing - file/registry/process/thread/network operations.
Thanks, it seems that when I uninstalled the add-ons, they didn't actually uninstall, so I did it again and CPU usage returned to normal. I'm going to reinstall them (only 2) and see which one caused it. Either way, thanks for your reply!
I've noticed that, too.... but in my case, it's just out of nowhere. Haven't installed or uninstalled any extensions or anything lately. Kept wondering why A) every time I opened Chrome, my fan speed would ramp up quite a bit, and B) YouTube would take FOREVER to respond to going full screen and closing windows. Opened task manager, and it's showing anywhere from 13 to 18 i'm guessing you could say instances of Chrome open (shows " > Google Chrome (14) in the task manager), one of which is using nearly 100% of the CPU. Funny part is... if I expand that to see every instance that's running, and just end that one specific one that's using all the CPU.... fans ramp down, and Chrome runs just fine.
Btw, I suspect that after Chrome is upgraded to a newer version some advanced/experimental flags can stuck with values from previous version, and you can reset them manually. You can try this manual resetting too.
Meh.... i fixed it with the good ol' fashioned method of uninstall/reinstall. Still 8 instances of Chrome in the task manager... for whatever reason.... but at least none of them cap the CPU.
Reason for multiple instances of chromium-based browsers (may be others as well) is (1) one process per a tab (site), (2) several processes are dedicated to work like rendering/composing.
