Re: [PATCH] lglock: make lg_lock_global() actually lock globally

Peter Zijlstra
2010-08-27T07:59:56Z

On Fri, 2010-08-27 at 09:57 +0200, Peter Zijlstra wrote:
>
>
> There's a large three lettered company that's promoting cpu hotplug use
> for power management, they hotplug at an astonishing rate.
>
> I've been saying hotplug isn't for that, and its a terrible slow path
> and disrupts your whole machine etc.. they don't seem to care much.

Oh, and the virt community seems to want (or is) doing the same silly
thing.