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performance tests/comparisons on A20-Lime2

a guest Oct 30th, 2014 220 Never
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  1. I/O throughput using Samsung SSD 840 EVO 120GB on Olimex A20-OLinuXino-Lime2 (cpufreq settings: ondemand/1008 MHz)
  2.  
  3. a20-lime2_debian_3.4.90_release_1.img:
  4.  
  5. root@a20-lime2 /data # iozone -a -g 2000m -s 2000m -i 0 -i 1 -r ...K
  6.  
  7.      KB  reclen   write rewrite    read    reread
  8. 1024000       4   43768   44307   171975   174550
  9. 1024000      32   43232   43592   158419   157417
  10. 1024000     512   42938   43425   153626   154983
  11. 1024000   16384   42893   43844   154888   156200
  12.  
  13. Bananian:
  14.  
  15. root@a20-lime2 /data # iozone -a -g 2000m -s 2000m -i 0 -i 1 -r ...K
  16.  
  17.      KB  reclen   write rewrite    read    reread
  18. 1024000       4   44838   45076   204687   206614
  19. 1024000      32   43844   44796   190840   192428
  20. 1024000     512   44148   44020   169103   167532
  21. 1024000   16384   44261   43550   173133   175084
  22.  
  23. root@a20-lime2 /data # grep sda1 /etc/mtab
  24. /dev/sda1 /data ext4 rw,relatime,discard,stripe=384,data=ordered 0 0
  25.  
  26.  
  27. Network throughput measured with iperf and some TCP tuning applied (compare with http://forum.lemaker.org/thread-7102-1-1.html for details)
  28.  
  29. Olimex image on A20-Lime: never exceeding 450 MBits/sec
  30. Bananian on A20-Lime: 470-800 MBits/sec depending on direction
  31. Bananian on Banana Pi: 670-870 MBits/sec depending on direction
  32.  
  33. Startup recorded via serial console:
  34.  
  35. a20-lime2_debian_3.4.90_release_1 booting: http://pastebin.com/QSvXiM1j
  36. Bananian 14.09 booting on A20-LIME2: http://pastebin.com/xU9wHBPP
  37.  
  38. Obviously the Olimex image failed to let U-Boot read uEnv.txt.
  39. Kernel version differs (3.4.104 vs. 3.4.90)
  40. Kernel command line differs (Bananian adds "sunxi_g2d_mem_reserve=0 sunxi_ve_mem_reserve=0")
  41. The kernel Olimex uses seems to origin from Cubietech and contains both emac/gmac stuff
  42. Voltage difference regarding axp20_buck2: 1425mV vs. 1450mV
  43. sunxi WatchDog Timer and I2S enabled in Olimex image
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