Date: Thu, 23 Nov 2006 17:48:35 -0600 From: Alan Cox <alc@cs.rice.edu> To: Ricardo Nabinger Sanchez <rnsanchez@wait4.org> Cc: Kip Macy <kip.macy@gmail.com>, Ulrich Spoerlein <uspoerlein@gmail.com>, arch@freebsd.org Subject: Re: superpage plans Message-ID: <45663353.1040803@cs.rice.edu> In-Reply-To: <20061123212952.f332a7ad.rnsanchez@wait4.org> References: <b1fa29170611220939g32469638ncf3a3ddd4bba3670@mail.gmail.com> <45649E42.70409@cs.rice.edu> <20061122201625.GC1522@roadrunner.q.local> <20061123212952.f332a7ad.rnsanchez@wait4.org>
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Ricardo Nabinger Sanchez wrote: >On Wed, 22 Nov 2006 21:16:25 +0100 >Ulrich Spoerlein <uspoerlein@gmail.com> wrote: > > > >>what performance impact do you estimate for "older" processors? I know >>very little about superpages, so I assume that, e.g., earlier Pentiums >>don't support it? Where do you think the break off point lies? >> >> > >Please correct me if I'm wrong, but if superpages means using 4 MB TLB pages, >then it is quite old (~1993) and every pentium (i586 or newer) should support >it. > > > Yes, you are correct. Regards, Alan
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