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Re: armel v4t vs v5


2012/4/18 Wookey <wookey@wookware.org>:
> +++ Martin Guy [2012-04-18 14:30 +0200]:
>> On 17 April 2012 18:36, Wookey <wookey@wookware.org> wrote:
>> > debian armel is currently
>> > built for v4t but is likely to move forward to v5 at some point.
>> -1 as we have and others have products that are arm4vt and that ship
>> with Debian as its standard system.
> It'll still be v4t for wheezy. We'll review it again for the next
> release. It'll stay v4t whilst there are still a significant number of
> users. What chips are you using that are v4t? I know openmoko is and
> that's one group we've been considering so far.

Samsung S3C2440 32-bit ARM920T which runs on popular device mini2440
and more devices is also ARMv4t.

>> How big is the speed advantage for
>> v5 users when optimizing for v5 instead of v4t? Enough to warrant the
>> exclusion of our v4t parts?
> I just asked and the answer seems to be 'some, but not much'. There
> are a few more useful instructions which should amount to a few
> percent speed improvement, but the gains are not exciting, which does
> suggest leaving it at v4t until really no-one cares anymore.

+1 to leave v4t as default

 Héctor Orón  -.. . -... .. .- -.   -.. . ...- . .-.. --- .--. . .-.

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