On a sunny day (Fri, 27 Apr 2018 13:14:06 +0100) it happened The Natural
Philosopher  wrote in :

>On 27/04/18 11:30, Jan Panteltje wrote:
>> On a sunny day (Fri, 27 Apr 2018 11:46:30 +0200) it happened Andreas Neumann
>>  wrote in :
>>
>>> Andrew Gabriel wrote:
>>>
>>>> Why do you want a 64 bit build?
>>>
>>> Because 64 bit are twice as good as 32 bit?
>>>
>>> SCNR
>>
>> Not even in theory, I did some web searching for that question myself,
>> wanted benchmarks.
>>
>> started reading here:
>>  
https://raspberrypi.stackexchange.com/questions/49466/raspberry-pi-3-and-64-bit
-kernel-differences-between-armv7-and-armv8
>>  
https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=138385&sid=9aaac4bc075d
b741ec8137e188b2956e
>>
>> Things may even slow down.
>>
>This argument raged when 64 BIT INTEL came out. I read it up
>extensively. And then went 64bit and never looked back. Graphics
>processing was a LOT better.
>
>And indeed anything that accesses memory in large chunks is twice as good.
>
>Disk performance and file sizes were slightly worse, that's all.

Yes, as for the Pi3 the 1 GB memory size limitation may work against it,
as mentioned in those links I referenced.
And memory access to SDcard is always a bottle neck.

I would appreciate if somebody who nows runs the 32 bit debian and wants to go
64 bit, runs one or more of the many
benchmarks available, and again after the upgrade to 64 bit.
That will provide a reality check..

As to 32 versus 64, I have some PCs with 32 bit Linux, deliberately, for
compatibility reasons at that time
and a laptop with 64 bit Linux, but the processors and architecture are
completely different (AMD single core, Intel i5)
different graphics chips (one on board, one nvidia, laptop has choice between
Intel and AMD graphics (had both).
So that is comparing apples and oranges for 'graphics speed'.

Run the test, inform us all.

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