Messages in this thread |  | | | Date | Fri, 22 May 2009 16:19:40 -0700 | | From | venkatesh.pallipadi@intel ... | | Subject | [patch 0/2] x86: Make offline cpus to go to deepest idle state using mwait |
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cpu hotplug has this long standing bug, with offline cpus going into hlt loop. That can result in offline CPU burning more power than while it is in online state (as when online it can potentially go to deeper C-state). Fix the bug using native mwait to enter deepest C-state in play_dead.
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