[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] A question about CONFIG_SMP
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx] >Sent: 2006年2月23日 17:47 > >On 23 Feb 2006, at 08:51, Tian, Kevin wrote: > >> Just a curious question, does anyone still care xen/UP? If yes, current >> xen-unstable.hg >> failed to build quickly after undef CONFIG_SMP since many structures >> include types >> defined only when CONFIG_SMP is on. >> >> Just realize this issue when cleanup some IA64 code recently, where >> CONFIG_SMP is still unstable and thus UP only. >> >> Is there any benefit to have xen/UP? Reducing image size is the >> immediate answer in my head... > >It's not supported for xen/x86 at least. Dynamically adding LOCK >prefixes if the system turns out to be multiprocessor is the only >optimisation I think would be worthwhile. But really >multi-processor/core/thread is what we care about. > > -- Keir Yep, agree. It's just raised out in case anyone has some special/meaningful usage model coming. :-) Thanks, Kevin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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