Date: Fri, 13 Mar 2015 13:53:40 -0400 From: John Baldwin <jhb@freebsd.org> To: Adrian Chadd <adrian@freebsd.org> Cc: Andriy Gapon <avg@freebsd.org>, "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org> Subject: Re: RFC: Simplfying hyperthreading distinctions Message-ID: <2652866.1YVC5LhOC2@ralph.baldwin.cx> In-Reply-To: <CAJ-VmonkrbMxHujd%2BbL0GNYJy2UGgZ-LF%2BGt-___mmQAbqU_bw@mail.gmail.com> References: <1640664.8z9mx3EOQs@ralph.baldwin.cx> <2092193.qt8NhEKglv@ralph.baldwin.cx> <CAJ-VmonkrbMxHujd%2BbL0GNYJy2UGgZ-LF%2BGt-___mmQAbqU_bw@mail.gmail.com>
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On Friday, March 06, 2015 03:45:13 PM Adrian Chadd wrote: > Hi! > > Hm, I looked at this: > > https://en.wikipedia.org/wiki/Bonnell_%28microarchitecture%29 > > .. and thought it was old-school HTT. If it's not old-school HTT then cool. It is not. The SDM manuals explicitly differentiate Atom CPUs from Pentium 4 when talking about HTT (oddly they don't really mention Core-based CPUs I believe because new HTT first showed up in Atoms and they never bothered to update that part of the SDM?). -- John Baldwin
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