From: Venkatesh Srinivas <me@acm.jhu.edu>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Cute plan9/inferno client?
Date: Sat, 29 Jan 2011 05:40:03 -0500 [thread overview]
Message-ID: <AANLkTi=z+cNmoogRvA7X5QSU+bKCapsqFUHeDBxOoKRf@mail.gmail.com> (raw)
In-Reply-To: <9995986211c13fcb763101e66ecd819e@chula.quanstro.net>
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On Fri, Jan 28, 2011 at 4:56 PM, erik quanstrom <quanstro@quanstro.net>wrote:
> On Fri Jan 28 16:33:03 EST 2011, me@acm.jhu.edu wrote:
> > >
> > > The Tegra is probably one of the best ARM chips out there...
> > >
> >
> > No it isn't; the Tegra lacks NEON.
>
> why do you think simd support is key? we have simd on x86
> and ignore it.
> - erik
>
Doesn't matter for Plan 9, its true. I was thinking more generally. For
media stuff or signals stuff, NEON is totally key for these ARM widgets,
even more than x86en, which can muscle by on OOE and chutzpah.
But even disregarding SIMD... the Tegra was based on the ARM11; the ARM11
isn't a terribly competitive core compared to the Cortex A8 in use by many
of the ARMed chips; the A8 was a wider (dual-issue) design with a
lower-power sleep, bigger/faster cache, and a much better branch predictor.
So I'm not sure sure by what metric you'd say "the Tegra is one of the best
ARM chips out there...".
-- vs
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next prev parent reply other threads:[~2011-01-29 10:40 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 17:35 Lawrence E. Bakst
2011-01-27 17:38 ` erik quanstrom
2011-01-27 18:00 ` Lawrence E. Bakst
2011-01-27 18:16 ` erik quanstrom
2011-01-28 2:45 ` hiro
2011-01-28 2:47 ` erik quanstrom
2011-01-28 3:04 ` Skip Tavakkolian
2011-01-28 4:57 ` Lawrence E. Bakst
[not found] ` <p06240816c967e571b63d@192.168.1.155>
2011-01-28 21:31 ` Venkatesh Srinivas
2011-01-28 21:56 ` erik quanstrom
2011-01-28 23:42 ` hiro
2011-01-29 10:40 ` Venkatesh Srinivas [this message]
2011-01-29 10:51 ` Lawrence E. Bakst
[not found] ` <p0624080bc969982a9965@192.168.1.155>
2011-01-29 11:09 ` Venkatesh Srinivas
2011-01-29 13:17 ` erik quanstrom
2011-01-29 23:56 ` Noah Evans
2011-01-28 10:06 ` Richard Miller
2011-01-28 12:50 ` hiro
2011-01-28 13:36 ` erik quanstrom
2011-02-01 16:56 ` Ethan Grammatikidis
2011-02-01 22:27 ` hiro
2011-02-01 22:52 ` erik quanstrom
2011-01-27 18:01 ` Lawrence E. Bakst
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