==== Benchmarking ====
  * https://www.cnx-software.com/2019/06/24/raspberry-pi-4-benchmarks-mini-review/

==== Benchmark results ====
^                        ^raspberry pi 4^Nintendo switch     ^Thinkpad L480 ^percentages^
|ram                     |2GB           |4GB                 |8GB           |           |
|price                   |50€           |300€                |950€          |           |
|distro                  |raspbian      |Fedora 30           |Fedora 30     |           |
|kernel                  |4.19.58-v7l+  |4.9.109+ (L4T kernel)|5.2.5-200.fc30|          |
|cpu                     |ARM Cortex-A72|ARM Cortex-A57      |Intel i5-8250U|           |
|cpu frequency           |500-1500Mhz   |200-2000Mhz         |400-3400Mhz   |           |
|sbc memcopy             |2470.8 MB/s   |2503.6 MB/s         |7274.4 MB/s   |34/34/100  |
|sbc memset              |3330.4 MB/s   |3573.5 MB/s         |16014.3 MB/s  |21/22/100  |
|7-zip score             |5728          |6170                |11330         |51/54/100  |
|openssl aes-128-cbc 16b |62533k        |347783k             |776987k       |8/45/100   |
|openssl aes-128-cbc 16kb|85235k        |912414k             |1263839k      |7/72/100   |
|openssl aes-256-cbc 16kb|64918k        |642777k             |913708k       |7/70/100   |

  * I used [[https://github.com/ThomasKaiser/sbc-bench|sbc-bench]], a nice benchmark for small boards, focusing on memory and cpu. sbc result details: [[http://ix.io/1RmS|raspi4/raspbian]] [[http://ix.io/2kZO|raspi4/Fedora32-raspbian64bit-kernel]] [[http://ix.io/1Rnj|nintendo switch]]
  * percentages: this assumes the Thinkpad values as 100%, and computes the other values on base of that.
  * RAM size is not important for the tests which were performed, less than 2GB were used.
  * sbc execution:
<code>
wget https://raw.githubusercontent.com/ThomasKaiser/sbc-bench/master/sbc-bench.sh
sudo /bin/bash ./sbc-bench.sh -c
</code>

==== Benchmarking future ideas ====
  * power: need a usb-c power meter for that
    * then compute how much electrical power is required for certain operations.
  * GPU:
    * would be especially interesting to also compare various 3D driver implementations. For example, 3D benchmarks running on horizon (Nintendos OS) and also on Linux/switch.
    * It's hard to only measure the GPU. It's also a question of how good the 3D drivers are.
    * Benchmarks should include retro game emulation. Simply because it's a common use case for pi4 and switch/Linux. bsnes and snes9x?
      * free snes rom?
    * geekbench