amuck-landowner

A20-OLinuXino-LIME

wlanboy

wlanboy

Content Contributer
Yesterday a local retrailer sold the A20-OLinuXino-LIME for €20 and I could not resist to get a replacement for my Raspberry Pi.

A20-OLinuXino-LIME.jpg

The essentail parts of the package:

  • Allwinner A20 dual core Cortex-A7 processor @1Ghz
  • Allwinner dual-core Mali 400 GPU
  • 512MB DDR3 RAM memory
  • SATA connector with 5V SATA power jack
  • Capable of FullHD (1080p) video playback
  • HDMI connector
  • 2 x USB High-speed host with power control and current limiter
  • USB-OTG with power control and current limiter
  • 100MBit native Ethernet
  • LiPo Battery connector with battery-charging capabilities
  • 160 GPIOs on four GPIO connectors
  • MicroSD card connector
  • DEBUG-UART connector for console debug with USB-SERIAL-CABLE-F

Looks like I found a cheap and capable replacement for my Raspberry Pi.

Main pros:

  • Dedicated GPU
  • Dedicated USB Hosts
  • Dedicated LAN (!!!)
  • Dedicated SATA
  • 160 GPIOs (!!!)
Currently downloading the Debian image via Torrent. Community support is not as good as on the Raspberry Pi but found enough samples for cross compiling the kernel.
Still cautious how well Allwinner and Debian (not talking about FreeBSD :-( ) supports this board.

I will update this thread once everything is working.
 
MannDude

MannDude

Just a dude
vpsBoard Founder
Moderator
Ohhh I really like that. Would be nice at 1024MB of RAM but the rest of the features are great. What are your plans with this unit?
 
HalfEatenPie

HalfEatenPie

The Irrational One
Retired Staff
Snap.  

Some parts Raspberry Pi 2 excels at.  Others, I guess the a20 olinuxino lime beats it on.

Good luck mate and yeah definitely let us know how it is.  
 
wlanboy

wlanboy

Content Contributer
MannDude said:
Ohhh I really like that. Would be nice at 1024MB of RAM but the rest of the features are great. What are your plans with this unit?
Click to expand...

The Lime version 2 does have 1 GB RAM. 
My plans are quite simple: "Extended USB stick".
Encrypted sd card containing my main Linux desktop [SSH/SCP/OpenVPN/SVN/Browser/Emails(IMAP)]
Plug into any PC, ssh into it and resume work.
 
AuroraZero

AuroraZero

Active Member
Hmmm looks like I could get one of these to replace my satellite and have cheap TV. Would work great to stream Hulu, Netflix, etc... Pffft I would have to order it the vendors near me do not carry anything remotely cool. Only run of the mill garbage that is way over priced. Some of it is out dated and still over priced. That is what I get for living in a remote area I suppose, but I can no longer stand metropolises.
 
wlanboy

wlanboy

Content Contributer
HalfEatenPie said:
Snap.  

Some parts Raspberry Pi 2 excels at.  Others, I guess the a20 olinuxino lime beats it on.

Good luck mate and yeah definitely let us know how it is.  
Click to expand...

Maybe I will get a Raspberry Pi 2 too. Currently benchmarking the A20 vs the original Raspberry Pi:

  • sysbench --test=cpu --num-threads=4 runA20
    Code: 
    sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 4

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 10000


Test execution summary:
    [B]total time:                          136.2003s
[/B]
    total number of events:              10000
    total time taken by event execution: 544.7097
    per-request statistics:
         min:                                 26.93ms
         avg:                                 54.47ms
         max:                                 88.79ms
         approx.  95 percentile:              66.90ms

Threads fairness:
    events (avg/stddev):           2500.0000/25.01
    execution time (avg/stddev):   136.1774/0.01
  • RP1
    Code: 
    Running the test with following options:
Number of threads: 4

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 10000


Test execution summary:
    [B]total time:                          533.9002s[/B]
    total number of events:              10000
    total time taken by event execution: 2135.1263
    per-request statistics:
         min:                                129.38ms
         avg:                                213.51ms
         max:                                420.98ms
         approx.  95 percentile:             337.86ms

Threads fairness:
    events (avg/stddev):           2500.0000/0.00
    execution time (avg/stddev):   533.7816/0.06
[*]sysbench --test=memory --memory-block-size=1M --memory-total-size=100M --num-threads=4 run
  • A20
    Code: 
    sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 4

Doing memory operations speed test
Memory block size: 1024K

Memory transfer size: 100M

Memory operations type: write
Memory scope type: global
Threads started!
Done.

Operations performed: 100 ( 1025.02 ops/sec)

100.00 MB transferred (1025.02 MB/sec)


Test execution summary:
    [B]total time:                          0.0976s
[/B]
    total number of events:              100
    total time taken by event execution: 0.3545
    per-request statistics:
         min:                                  0.95ms
         avg:                                  3.55ms
         max:                                 23.16ms
         approx.  95 percentile:              21.90ms

Threads fairness:
    events (avg/stddev):           25.0000/14.51
    execution time (avg/stddev):   0.0886/0.01
  • RP1
    Code: 
    Running the test with following options:
Number of threads: 4

Doing memory operations speed test
Memory block size: 1024K

Memory transfer size: 100M

Memory operations type: write
Memory scope type: global
Threads started!
Done.

Operations performed: 100 (  341.23 ops/sec)

100.00 MB transferred (341.23 MB/sec)


Test execution summary:
    [B]total time:                          0.2931s
[/B]
    total number of events:              100
    total time taken by event execution: 1.0973
    per-request statistics:
         min:                                  2.69ms
         avg:                                 10.97ms
         max:                                 52.81ms
         approx.  95 percentile:              32.86ms

Threads fairness:
    events (avg/stddev):           25.0000/0.00
    execution time (avg/stddev):   0.2743/0.01
 
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