Messages in this thread | | | Subject | Re: High Mem Options | From | Alan Cox <> | Date | 05 Mar 2003 13:38:46 +0000 |
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On Wed, 2003-03-05 at 11:28, Reed, Timothy A wrote: > Hello all, > Yet another quick question...is there any down side to using the > 64GB option over the 4GB option if the machine only has 2GB of RAM onboard?? > I would think this would be a performance issue? Does the kernel only use > the translation table if it has to access any memory location over 4GB?
The 64Gb mode has to use different page table formats, so there is a hit always
-- Alan Cox <alan@lxorguk.ukuu.org.uk> - 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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