Messages in this thread | | | Date | Sat, 3 Nov 2007 23:38:24 +0100 (CET) | From | Bo Brantén <> | Subject | Re: x86_64 ten times slower than i386 |
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On Sat, 3 Nov 2007, Matt Mackall wrote:
> This is typically due to a problem with the setup of your MTRRs. Try > booting with mem=nnnM where nnn is some number smaller than your > actual amount of memory.
Thank you for that advice, the system has 4GB and if I boot with mem=3072M it will run as fast as normal while if I don't use the mem option it will run 10 times slower, however if I use a figure like mem=3500M the kernel will panic, is there any way to determine the highest usable figure without try and error? - 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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