Messages in this thread | | | Date | Fri, 8 Feb 2008 09:24:22 +0100 | From | Jens Axboe <> | Subject | Re: IO queuing and complete affinity with threads (was Re: [PATCH 0/8] IO queuing and complete affinity) |
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On Fri, Feb 08 2008, Nick Piggin wrote: > On Fri, Feb 08, 2008 at 08:59:55AM +0100, Jens Axboe wrote: > > On Fri, Feb 08 2008, Nick Piggin wrote: > > > And if you don't? > > > > Well if you don't ask for anything, you wont get anything :-) > > As I mentioned, the patch is a playing ground for trying various setups. > > Everything defaults to 'do as usual', set options to setup certain test > > scenarios. > > I mean if you don't know the completing CPU.
I still don't know quite what part of that patch you are referring to here. If you don't have queue_affinity set, queueing a new request with the hardware is generally done on the same CPU that just completed a request. That is true even without any patches.
-- Jens Axboe
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