Messages in this thread | | | Date | Wed, 12 Feb 2003 18:13:46 +0000 | From | Dave Jones <> | Subject | Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance) |
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On Wed, Feb 12, 2003 at 06:52:00PM +0100, Ingo Oeser wrote: > On Wed, Feb 12, 2003 at 11:45:08AM +0100, Andi Kleen wrote: > > [...] I have no real interest in vm86 mode, perhaps one of the people > > interested in dosemu etc. could take care of it. I'm very glad it doesn't > > exist on my main architecture - x86-64 - given how many hacks it needs to be > > supported. > > So what about making it a CONFIG_XXX option? The few dosemu users > could then configure it in.
Overkill. Andi's TF_VM86 fix looks to be the nicest way to do it. If you don't use dosemu etc, the wrmsr should never be hit.
Dave
-- | Dave Jones. http://www.codemonkey.org.uk | SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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