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In the comments on the blog, Jared added the following:

"If you can still use the Chrome UI during the slowdown, there is a built in Task Manager, under the Tools menu, that shows you all of the above stats and the page title."

I thought this was common knowledge.

It's actually Chrome's main selling point as far as I'm concerned.

I recently discovered a handy use for Chrome's task manager. Sometimes I want Chrome to stop wasting my RAM and CPU temporarily, because I need them for something. But it's annoying to close Chrome, because when it restarts it will try to reload my tabs all at once, thrashing my system.

So instead, I open the Task Manager, select-all, and kill everything. Now I can selectively revive tabs as I need them, and meanwhile my RAM and CPU are free.

(I used to accomplish the same thing with SIGSTOP, but on OS X this seems to have unpleasant side-effects. There's some interaction between GUI apps and the window manager that causes the window manager to start hogging CPU if the app doesn't respond.)