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I have a 6 core processor and have noticed some performance issues. I recognize coming from Windows things won't be the same. But I've heard that it's not incredibly uncommon for linux to not utilize all cores available. Is there a command or series of commands to be sure linux recognizes my processor runs all 6 cores?

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You can probably test your CPUs by running a CPU-intensive process and watching the System Monitor or some equivalent. If you don't find the system monitor or want an alternative, try this thread for more details.

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