Messages in this thread | | | Date | 23 May 2005 18:40:46 +0200 | Date | Mon, 23 May 2005 18:40:46 +0200 | From | Andi Kleen <> | Subject | Re: [patch 0/4] CPU hot-plug support for x86_64 |
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On Fri, May 20, 2005 at 03:16:22PM -0700, Ashok Raj wrote: > Andi: You had mentioned that you would not prefer to replace the broadcast IPI > with the mask version for performance. Currently this seems to be the > most optimal way without putting a sledge hammer on the cpu_up process.
I already put a sledgehammer to __cpu_up with that last patch. Some more hammering surely wouldnt be a big issue. Unlike i386 we actually still have a chance to test all relevant platforms, so I dont think it is a big issue.
What changes did you plan?
P.S.: An alternative would be to define a new genapic subarch that you only enable when you detect cpuhotplug support at boot.
Again just commenting on the text, not patch sorry.
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