[U-Boot] [RFC PATCH] arm: provide a CONFIG flag for disabling relocation

Albert ARIBAUD albert.u.boot at aribaud.net
Sat Oct 1 08:48:06 CEST 2011


Le 30/09/2011 09:21, Simon Schwarz a écrit :
> On 09/29/2011 06:14 PM, Andreas Bießmann wrote:
> [SNIP]
>> Simon, who has just finished his bachelor thesis did this test for me
>> (thanks to this way ...).
>> It seems using more register for ldmia/stmia does _not_ improve the copy
>> time that much. Simon measured 10.8 ms for r9-r10 and 10.65 ms for
>> r3-r10 (unfortunately
>> I do not know which system he tested, but I guess devkit8000).
>>
>> best regards
>>
>> Andreas Bießmann
>>
>>
> Yes, devkit8000.
>
> Regards
> Simon

Thanks to both of you. I'd somehow expected there not to be a great 
increase as the true limit is bus width.

So let us stick with two registers and avoid register pushes/pops.

Amicalement,
-- 
Albert.


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