I agree, but I think it's ok if we use them only if we have them, and rely on just 2M otherwise.
On Fri, Sep 16, 2011 at 5:28 PM, ron minnich <rminn...@gmail.com> wrote: > On Fri, Sep 16, 2011 at 7:57 AM, erik quanstrom > <quans...@labs.coraid.com> wrote: > >> please don't make it required. there's already array of page sizes per mach. > > sorry, but time moves forward. We need the 1G pages for user mode > anyway -- so the fact that you can run on older machines is a happy > coincidence but it will die the first time you run a process that uses > more than 1G. Reducing PTE count by 512 is a not insignificant cost. I > expect to put the 1G pages for the kernel map back in in the next > while. > > ron > >
