Messages in this thread | | | Date | Thu, 23 Feb 2006 17:49:43 +0100 | From | Arjan van de Ven <> | Subject | Re: Patch to reorder functions in the vmlinux to a defined order |
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Andi Kleen wrote: > On Thursday 23 February 2006 17:43, Arjan van de Ven wrote: >> On Thu, 2006-02-23 at 17:00 +0100, Andi Kleen wrote: >>> On Thursday 23 February 2006 16:09, Arjan van de Ven wrote: >>> >>>> This patch puts the infrastructure in place to allow for a reordering of >>>> functions based inside the vmlinux. The general idea is that it is possible >>>> to put all "common" functions into the first 2Mb of the code, so that they >>>> are covered by one TLB entry. This as opposed to the current situation where >>>> a typical vmlinux covers about 3.5Mb (on x86-64) and thus 2 TLB entries. >>>> (This patch depends on the previous patch to pin head.S as first in the order) >>> I think you would first need to move the code first for that. Currently it starts >>> at 1MB, which means 1MB is already wasted of the aligned 2MB TLB entry. >>> >>> I wouldn't have a problem with moving the 64bit kernel to 2MB though. >> that was easy since it's a Config entry already ;) > > > I assume you boot tested it?
yes it booted on my testbox, and system.map showed the 2 instead of the 1 - 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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