Rock64 micro-sd controller defective?
#1
HHi3rqe4


Hello everyone,

I am not sure if this is software related problem or is just my Rock64's micro-sd controller that is defective. I tried different micro-sd cards and they all perform really badly.


The following results were made with DietPi_v156_Rock64-arm64-(Stretch).img

1-Samsung 32GB EVO Plus Class 10 Micro SDHC with Adapter (MB-MC32GA/AM) --- 95MB/s Read, 20MB/s Write

I got 18.1MB/s Read, 22.9MB/s Write
https://drive.google.com/open?id=18kWYaM...cH0KqzkJ9y


2- Samsung Pro Plus 64GB MicroSDXC Memory Card --- 95MB/s Read, 90MB/s Write

I got 22MB/s Read, 23MB/s Write
https://drive.google.com/open?id=1EVwxQ9...Qvy2iRjwmX


3- Micro Center class 10 32GB 

https://drive.google.com/open?id=1wNf4c7..._PAR4l3-18


4- HardKernel 8GB EMMC

https://drive.google.com/open?id=1byXvrG...36C-KbnYLc



Below the same micro-sd tested with Debian Stretch 64Bit, Kernel 4.9.0-5-amd64 on my Dell XPS 13 9360

1-Samsung 32GB EVO Plus Class 10 Micro SDHC with Adapter (MB-MC32GA/AM) --- 95MB/s Read, 20MB/s Write

I got 24.3MB/s Read, 60.4MB/s Write
https://drive.google.com/open?id=1W5Qkm5...ioDnPP3Sii


2- Samsung Pro Plus 64GB MicroSDXC Memory Card--- 95MB/s Read, 90MB/s Write

I got 62.8MB/s Read, 58.8MB/s Write
https://drive.google.com/open?id=1OToQrw...xtyfx0Gg-i


3- Micro Center class 10 32GB 

I got 4.3MB/s Read, 30.9MB/s Write
https://drive.google.com/open?id=1DfiwGc...x0nrep9Jo5


Could someone perform some tests on their Rock64 using dd with my same options that I used and share their results?

I would love to understand if the problem are the Rock64's Linux distros not yet optimized or is my Rock64's micro-sd controller that is defective.

Thank you in advance.
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Messages In This Thread
Rock64 micro-sd controller defective? - by soichiro - 01-16-2018, 10:02 PM

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