[Arm-dev] Cubieboard5 performance

Sun Aug 5 13:13:26 UTC 2018
Robert Moskowitz <rgm at htt-consult.com>


On 08/05/2018 06:55 AM, Pablo Sebastián Greco wrote:
>
> El 5/8/18 a las 07:16, Robert Moskowitz escribió:
>> Pable,
>>
>> Thanks for responding.
>>
>> On 08/05/2018 05:46 AM, Pablo Sebastián Greco wrote:
>>>
>>> Robert, cubieboard5 (AKA Cubietruck Plus) has an A83T SoC, which 
>>> only got multicore for kernel 4.18 (still not relased).
>>> I made a 4.17 version with smp support backported and you can find 
>>> it here 
>>> (https://armv7.dev.centos.org/repodir/community-kernel-latest/kernel/4.17.6-200.el7/).
>>> Also cubietruck plus may not have HDMI support yet (I got a patch 
>>> from another user in #centos-arm and seems to be working).
>>>
>>
>> Using it as a server on if I need a local connection I use the serial 
>> console via a TTL/USB converter.  Of course I would have to get the 
>> pin-out for this board.
> I have that patch included in my kernels, but don't have a device to 
> test it.
>>
>>> Finally, the main thing about that board (about that SoC actually), 
>>> is that SATA is not native, it is an integrated SATA-USB, so 
>>> performance may be an issue.
>>>
>>
>> Ouch. this is for a mail server that has extensive disk I/O.  So 
>> forget this board.
>>
>>> Personally I love the BananaPi M2Ultra, 2G RAM, 4 Cores and native 
>>> SATA. The only problem is that SATA support is not integrated yet in 
>>> any kernel, so it needs external patches.
>>>
>>
>> Any timing on delivering the support mainline?
> Patch is already at v3, I've been using v1 on my device without 
> problems. Doesn't look like it it will be integrated before 4.20 (but 
> we can always backport)

ETA for 4.20, considering we are on 4.9.52?  :)

>>
>>>
>>> Pablo.
>>>
>>> P.S: this is a blog post I made a few months ago 
>>> https://blog.centos.org/2018/05/testing-armhfp-devices/ , BananaPi 
>>> M3 is practically the same as Cubieboard5.
>>>
>>
>> I will look at it.
>>
>>> P.S 2: wrt any device with AllWinner SoC, you can check 
>>> https://linux-sunxi.org/Linux_mainlining_effort to know what to expect.
>>>
>>
>> I use to follow it closely and did some testing for Hans when he was 
>> running the Allwinner development.  I should go back and check in, so 
>> to speak.
>>
>> Of course if there is a quad core 64-bit ARM with sata under $100 
>> that runs at 5V; that would do nicely!
> ;)

Yeah, California dreaming.  And I am in Michigan.  No forest fires. Yet.

How many of the above requirements are not available.  My first 
approximation is <$100 and 5V.  We all know there are quad 64bit ARMs 
out there with sata!

>>
>> Bob
>>
>>> El 5/8/18 a las 01:09, Robert Moskowitz escribió:
>>>> has anyone here tried out the octa-core Cubieboard5?
>>>>
>>>> Does Centos work with all those cores for better multitasking than 
>>>> the duo-core A20 boards?
>>>>
>>>> One of my Cubieboard2 is dying and I CAN replace it with one of my 
>>>> test boards.  But my mail server does struggle with only 2 cores 
>>>> for all the virus scanning.  If I had more cores, I could lift the 
>>>> attachment limit, perhaps.
>>>>
>>>> I just saw a deal on the Cubieboard5, cheaper than the Cubietruck.
>>>>
>>>> Or info on any other quad board.
>>>>
>>>> thanks
>>>>
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>>>
>>>
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