Testing Category - Page 61 of 169 - CNX Software

August 6, 2019 by Jean-Luc Aufranc (CNXSoft) - 34 Comments

TensorFlow Lite for Microcontrollers Benchmarked on Linux SBCs

TensorFlow Lite microcontrollers benchmark linux SBC

Dimitris Tassopoulos (Dimtass) decided to learn more about machine learning for embedded systems now that the technology is more mature, and wrote a series of five posts documenting his experience with low-end hardware such as STM32 Bluepill board, Arduino UNO, or ESP8266-12E module starting with simple NN examples, before moving to TensorFlow Lite for microcontrollers. Dimitris recently followed up his latest “stupid project” (that’s the name of his blog, not being demeaning here :)) by running and benchmarking TensorFlow Lite for microcontrollers on various Linux SBC. But why? you might ask. Dimitris tried to build tflite C++ API designed for Linux, but found it was hard to build, and no pre-built binary are available except for x86_64. He had no such issues with tflite-micro API, even though it’s really meant for baremetal MCU platforms. Let’s get straight to the results which also include a Ryzen platform, probably a laptop, for […]

August 3, 2019 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Android Gaming on Khadas VIM3 SBC (Video)

I started playing with Khadas VIM3 Basic SBC powered by Amlogic A311D processor and 2GB RAM, and noticed Android benchmarks, especially 3D graphics were significantly better (40% improvement) than the ones of Rockchip RK3399. So I decided it may be interesting to show Android gaming on the single-board computer, and installed the latest version of Android 9.0 with Google Play store. Finally I connected the RF dongle of Tronsmart Mars G01 wireless gamepad, as well as USB keyboard and mouse to get some fun. Since the board only has two USB type-A ports, I also inserted MINIX NEO S2 USB-C + SSD hub to connect the gamepad RF dongle. Then I tried to install and play four games Beach Buggy Racing Installed via Google Play Played with Tronsmart gamepad. Perfectly smooth with max graphics settings. Similar to other TV boxes or boards. Riptide GP2 Installed via Amazon Store Played with […]

July 29, 2019August 2, 2019 by Jean-Luc Aufranc (CNXSoft) - 28 Comments

Amlogic A311D vs Rockchip RK3399 Benchmarks Comparison

I’ve run some benchmarks on Khadas VIM3 SBC earlier this morning. The board is powered by the latest Amlogic A311D hexa-core Cortex-A73/A53 processor, and I’ve found results to be impressive. But let’s see how it compares to another hexa-core processor, namely the popular Rockchip RK3399 Cortex-A72/A53 processor released in 2016 and found in several Chromebooks, TV boxes, and development boards. To do so, I’ve compared Antutu 7.x, PCMark 10 Work 2.0, and 3Dmark benchmark results in Khadas VIM3 board running Android 9, against an actively-cooled Rockchip RK3399 SBC running Android 8.1. The results for A311D should be the same as for Amlogic S922X-B processor, so this post could also serve as an Amlogic S922X-B vs RK3399 comparison. Amlogic A311D vs Rockchip RK3399 – Key features Amlogic A311D Rockchip RK3399 CPU Quad-core Cortex-A73 @ 2.21 GHz Dual-core Cortex-A53 @ 1.8 GHz Dual-core Cortex-A72 @ 1.8 GHz Quad-core Cortex A53 @ 1.416 […]

July 29, 2019October 16, 2019 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Khadas VIM3 (Amlogic A311D) Benchmarks & System Info in Android 9

I received Khadas VIM3 kit at the very beginning of this month, and showed the content of the kit, and how to assemble it. Now after clearing some other items for review, I’ve started to play with the Amlogic A311D board which ships with Android 9.0 by default. I’ll focus my efforts on Ubuntu as most people will run Linux distributions on the board, but before doing so I’ve upgraded Android to the latest version, and checked out system information and ran some benchmarks in Android. Installing the latest Android firmware on VIM3 Instructions to upgrade the firmware over USB-C are available for Windows and Ubuntu, but since my laptop runs Ubuntu 18.04 I’ll focus on the latter. We can install the burn-tool for Linux as follows:

sudo apt install libusb-dev git parted
git clone https://github.com/khadas/utils
cd utils
sudo ./INSTALL

sudo apt install libusb-dev git parted

git clone https://github.com/khadas/utils

cd utils

sudo ./INSTALL

We can now download and extract the latest Android image:

wget https://dl.khadas.com/Firmware/VIM3/Android/VIM3_Pie_V190704.7z
7z x VIM3_Pie_V190704.7z

1 2	wget https://dl.khadas.com/Firmware/VIM3/Android/VIM3_Pie_V190704.7z 7z x VIM3_Pie_V190704.7z

Once it’s done you can connect your VIM3 board to your […]

July 26, 2019July 26, 2019 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

How to Overclock Raspberry Pi 4 to 2.0 GHz

Yesterday I played with my new “ICE Tower CPU cooling fan” for Raspberry Pi 4 which cools the board just great but is clearly over the top. Regular reader and commenter m][sko mentioned it was possible to overclock Raspberry Pi 4 to 2.0 GHz after a firmware upgrade. That looks like a perfect task for my new fansink! I’ve upgraded both the firmware and operating system:

sudo rpi-update
sudo apt dist-upgrade

1 2	sudo rpi-update sudo apt dist-upgrade

then edited /boot/config.txt as root (sudo) to add the following lines to boost the maximum frequency to 2.0 GHz:

force_turbo=0
arm_freq=2000
over_voltage=6

force_turbo=0

arm_freq=2000

over_voltage=6

Do not try to set force_turbo=1, as while it would allow to further boost the voltage, it will change a fuse in the chip, and it will void your warranty. We can now reboot the board to validate the settings, and check those are applied:

vcgencmd get_config int | grep "arm\|over"
arm_freq=2000
over_voltage=6

vcgencmd get_config int | grep "arm\|over"

arm_freq=2000

over_voltage=6

Good. At idle the frequency is lower, but that normal:

vcgencmd measure_clock arm
frequency(48)=666826176

1 2	vcgencmd measure_clock arm frequency(48)=666826176

Voltage is set to 1.0335V:

vcgencmd measure_volts
volt=1.0335V

1 2	vcgencmd measure_volts volt=1.0335V

[…]

July 26, 2019July 26, 2019 by Ian W MORRISON (Linuxium) - 5 Comments

Intel Mini PCs Linux Performance Comparison

Intel mini PC side-by-side comparison table

Recent vulnerabilities in Intel x86 microprocessors (Meltdown, Spectre, Foreshadow, RIDL, Fallout, ZombieLoad, etc.) are now addressed with mitigation patches for the Linux kernel although have resulted in some performance degradation. As a consequence, my previous comparison benchmarks could be somewhat misleading when compared with new results given the different versions of software at the time of execution. So I’ve repeated running my standard Phoronix Test Suite benchmarks on several of the latest mini PCs each running the latest updated Ubuntu 18.04.2 software with the same Ubuntu 4.15.0-54 kernel. Specifically, the mini PCs I’ve used are as follows: Intel NUC NUC7CJYSAL (Celeron J4005 Gemini Lake) Pepper JobsGLK-UC2X (Celeron N4100 Gemini Lake) Beelink Gemini X X45 (Celeron J4105 Gemini Lake) Beelink Gemini X X55 (Pentium Silver J5005 Gemini Lake) with updated BIOS Intel NUC NUC7PJYH (Pentium Silver J5005 Gemini Lake) Beelink L55 (i3-5005U Broadwell) On each mini PC, I’ve also run sbc-bench which is […]

July 25, 2019July 25, 2019 by Jean-Luc Aufranc (CNXSoft) - 46 Comments

Raspberry Pi 4 ICE Tower CPU Cooling Fan Tested

Raspberry Pi 4 ICE Tower CPU Cooling Fan Review

Most of us know the Raspberry Pi 4 can get pretty hot, and a heatsink is required if you intend to get the maximum performance out of your board under heavy loads and/or high ambient room temperature. Some even designed a large fansink for Raspberry Pi 4 to prevent the board from throttling. It’s actually a bit over the top, but Seeed Studio sent me a sample of their “ICE Tower CPU cooling fan”, so I’ve had the chance to test it. ICE Tower Cooling Fan Unboxing & Assembly with Raspberry Pi 4 The package tells us it’s made by 52Pi and design specifically for Raspberry Pi 4B/3B+/3B SBC’s. It’s probably not that useful for the last two. The package contains the heatsink with fan attached, screw sets, a screwdrivers, mounting brackets for Raspberry Pi 3/3B+ and RPi 4, as well as a useful user manual. Raspberry Pi 3 and […]

July 24, 2019July 28, 2019 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Chuwi HiPAD LTE Tablet Review – Part 2: Android 8.0

Last month, I received HiPad LTE tablet, and in the first part of the review I checked out the specifications of the 10″ tablet with a MediaTek Helio X27 deca-core processor, 3GB RAM, 32 GB storage, and had a look at the accessories including the keyboard dock. I’ve now had more time to actually play with the device, so I’ll report my experience with Android 8.0, and the pros and cons of the latest Chuwi tablet. General Impressions My previous tablet was Onda V18 Pro, and Chuwi HiPad LTE is clearly an upgrade thanks to the faster Heliox X27 deca-core processor coupled with 3GB of RAM. The 10.1″ display has a 1920×1200 resolution, not quite as good as the 2560×1600 resolution of the Onda tablet, but I still found the screen to be crispy and sharp. I found the tablet to be great for browsing the web and watching YouTube […]