Messages in this thread | | | Date | Mon, 25 Jul 2005 19:12:47 +0530 | From | VASM <> | Subject | Re: kernel page size explanation |
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On 7/25/05, Nix <nix@esperi.org.uk> wrote: > On Mon, 25 Jul 2005, VASM wrote: > > i had one question > > does the linux kernel support only one default page size even if the > > processor on which it is working supports multiple ? > > No. Some architectures have compile-time support for multiple different > page sizes (e.g. Itanium, SPARC64); many have support for a > (non-swappable) `large pages) system, and a filesystem backed by huge > pages. (Often, the kernel is stored in huge pages, to keep the number > of page table entries wasted by the nonswappable kernel to a minimum.) > > What is *not* presently supported is using multiple page sizes to > back userspace processes; that size is currently fixed at compile-time, > even on architectures supporting multiple variably-sized pages. > are there any specific reasons for not using large page size for userspace processes
> -- > `But of course, GR is the very best relativity for the masses.' > --- Wayne Throop > - 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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