LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer
User Name
Password
Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

Notices


Reply
  Search this Thread
Old 07-11-2019, 09:24 AM   #1
NicoD SBC
Member
 
Registered: May 2018
Posts: 41

Rep: Reputation: Disabled
Review video : Khadas VIM3 - Incredible mini Supercomputer


Hi all.
Here my latest review video about the Khadas VIM3.
Faster than the Odroid N2 and with a Neural Processing Unit on-board.
Amazing performance by a very little board.
Greetings,
NicoD
https://youtu.be/LziTRbQ38u4

Here all my gathered information.

Khadas VIM3
-----------
Ubuntu server - fan over fins
-----------------------------
Blender BMW no fan thermal pad : 59m
with copper shim : 58m18s
with 5V fan : 45m01s
with 5V fan over CPU : 43m28s


Ubuntu XFCE - fan over CPU, not over fins
-----------------------------------------
Blender no fan : 55m22s
Blender 3V fan : 43m03s
Blender 5V fan : 42m51s

Blender with fan : 48m45s Armbian Bionic Small cores @1.9Ghz Big cores @1.7Ghz
Blender with fan : 46m29s Armbian Disco Small cores @1.9Ghz Big cores @1.7Ghz
Blender with fan : 46m56s Armbian Buster Small cores @1.9Ghz Big cores @1.7Ghz

Kdenlive 16m bench 3V lxde : 1h09m (using 1GB zram + 4GB swap file. Not enough ram with 2GB)

Video playback
--------------
Ubuntu
------
Up to 4K 30fps with MPV. Very slight screen tearing. Anything lower is perfect
Youtube playback with Firefox up to 1440p 30fps perfect
KODI doesn't work (yet)
No VPU acceleration for now. All done by CPU.

LibreElec
---------
Up to 4K 30fps with MPV. Very slight screen tearing. Anything lower is perfect
Wifi doesn't work.

power consumption
-----------------
Idle no fan : 0.27A 5V (governor set to interactive)
Maxed out with fan : 1.4A 5V (fan is 0.15A)

Temperatures (fan over CPU, not over fins)
------------------------------------------
Idle No fan : 44C
Maxed out No fan : 75C heavy throttling. 1Ghz small cores / 1.8Ghz big cores

Idle 3V fan : 34C
Maxed out 3V fan : 73C very light throttle. Takes 5min to reach 70c. +10min to start throttling

Idle 5V fan : 32C
Maxed 5V : 70C no throttling

Transfer speeds
---------------
eMMC 16GB : 60 MB/s write
: 165.9 MB/s read
SSD over USB3 : 380.3 MB/s write
: 286.1 MB/s read
SSD over USB2 : 40.2 MB/s
Samsung EVO plus with on-board sd-reader : 10.2MB/s write 22.1MB/s read
with USB3 sd-reader : 31.7MB/s write 88.6MB/s read


Ethernet internet speed : 53.9 Mbps 11.5 Mbps
Wifi internet speed : 43.7 Mbps 11.2 Mbps

Issue's
-------
When using a 2.4Ghz dongle for mouse in the right USB3 port, wifi connection is slow.
When using a USB3 device in the USB3 port wifi stops working. Use left USB2 port for those.

Ubuntu server boots/shuts down slower than XFCE version. Shut down stop job for ifup for eth0 (not in use) 1m30s
Boot hangs a while. Can't find the reason. After -> Scanning for Btrfs filesystems. Done. about 30s

Can't install Tensorflow
khadas@Khadas:~/tensorflow$ pip3 install tensorflow-1.8.0-cp35-none-linux_aarch64.whl
tensorflow-1.8.0-cp35-none-linux_aarch64.whl is not a supported wheel on this platform.


Android : Can't connect wifi. I can type wifi password, but can't go further. No connect button.

Tips
----
Use interactive governor for better thermals and power consumption with low use/idle.


Plus/Minus
----------
+ Best single core performance + best multi-core performance for an ARM SBC
+ Nice case + PSU + USB-c cable included + remote + eMMC
+ Amazing low power consumption / best performance per watt
+ Can be powered with 5V up to 20V
+ NPU

- Wifi issue with USB3/No 5Ghz wifi. Could have solved the USB3 interference
- Placing of the buttons would be better on the back. They often get pressed when plugging a USB device. You do get used to it.
- No VPU and X11 drivers (yet)
- Slow On-board SD-card reader
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
LXer: GTC 2015: Nvidia Digits DevBox is a Linux-powered mini supercomputer LXer Syndicated Linux News 0 03-18-2015 08:12 AM
LXer: Sandia's mini supercomputer runs Linux on 196 Gumstix ARM modules LXer Syndicated Linux News 0 05-02-2011 04:10 PM
I hear I can turn my Sony Ply stn 3 into a mini supercomputer with Linux Yellow Dog? mixhypnatist Linux - Software 7 01-21-2011 01:21 PM
LXer: Incredible Times, Incredible Technology LXer Syndicated Linux News 0 10-29-2010 01:20 PM
LXer: Mini Review: Open Source inHarvard Business Review LXer Syndicated Linux News 0 05-02-2008 05:10 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer

All times are GMT -5. The time now is 04:45 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration