Video of latest xbmc code on Raspberry Pi
Information 
Decided to do this testing after reading about the extremely poor Random Read 4K performance of my "fast" USB 3.0 drive.

The "old n cheap" Silicon power USB 2.0 loads posters almost instantly after scrolling through a +500 video library in fanart view.
UI navigation has some occasional pauses when loading new windows (could be some background activity related to fresh install. e.g. caching?).
Scanning the library slows the system down quite a bit.

The "fast" Class 10 SD Card takes about a 1-3 secs to load posters after scrolling.
UI navigation is pretty smooth, rarely has slowdowns.
Library updates slow the system a bit but UI is still responsive.

The "new and more expensive" USB 3.0 takes about a 1-3 secs to load posters in fanart mode, after scrolling.
Navigating the UI is very smooth and item/menus load instantly.
Updating the library or installing addons have almost no impact in system performance.

Code:
* Silicon Power USB 2.0 4GB
-----------------------------------------------------------------------                    
CrystalDiskMark 3.0.3 Shizuku Edition (C) 2007-2013 hiyohiyo                    
                           Crystal Dew World : http://crystalmark.info/                    
-----------------------------------------------------------------------                    
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]                    
                    
           Sequential Read :    29.942 MB/s                    
          Sequential Write :     8.473 MB/s                    
         Random Read 512KB :    29.898 MB/s                    
        Random Write 512KB :     1.492 MB/s                    
    Random Read 4KB (QD=1) :     7.284 MB/s [  1778.4 IOPS]                    
   Random Write 4KB (QD=1) :     0.014 MB/s [     3.5 IOPS]                    
   Random Read 4KB (QD=32) :     7.566 MB/s [  1847.2 IOPS]                    
  Random Write 4KB (QD=32) :     0.026 MB/s [     6.3 IOPS]                    
                    
  Test : 50 MB [H: 61.9% (2361.5/3812.1 MB)] (x5)                    
  Date : 2013/12/12 20:45:26                    
    OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x86)                    


                * Samsung 8GB SDHC Class 10 (MB-MP8GA)                    
-----------------------------------------------------------------------                    
CrystalDiskMark 3.0.3 Shizuku Edition (C) 2007-2013 hiyohiyo                    
                           Crystal Dew World : http://crystalmark.info/                    
-----------------------------------------------------------------------                    
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]                    
                    
           Sequential Read :    19.819 MB/s                    
          Sequential Write :    15.832 MB/s                    
         Random Read 512KB :    19.109 MB/s                    
        Random Write 512KB :     1.800 MB/s                    
    Random Read 4KB (QD=1) :     2.792 MB/s [   681.5 IOPS]                    
   Random Write 4KB (QD=1) :     0.026 MB/s [     6.4 IOPS]                    
   Random Read 4KB (QD=32) :     2.963 MB/s [   723.4 IOPS]                    
  Random Write 4KB (QD=32) :     0.032 MB/s [     7.7 IOPS]                    
                    
  Test : 50 MB [I: 0.0% (0.0/126.0 MB)] (x5)                    
  Date : 2013/12/12 21:31:09                    
    OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x86)                    


            * Patriot Supersonic Boost XT USB 3.0 16GB                    
-----------------------------------------------------------------------
CrystalDiskMark 3.0.3 Shizuku Edition (C) 2007-2013 hiyohiyo
                           Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :    25.122 MB/s
          Sequential Write :    16.913 MB/s
         Random Read 512KB :    29.902 MB/s
        Random Write 512KB :     9.039 MB/s
    Random Read 4KB (QD=1) :     1.837 MB/s [   448.4 IOPS]
   Random Write 4KB (QD=1) :     0.752 MB/s [   183.6 IOPS]
   Random Read 4KB (QD=32) :     2.541 MB/s [   620.4 IOPS]
  Random Write 4KB (QD=32) :     1.253 MB/s [   306.0 IOPS]

  Test : 50 MB [H: 0.0% (0.0/14.7 GB)] (x5)
  Date : 2013/12/12 23:21:08
    OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x86)
 
  • Intel NUC Kit DN2820FYKH ~ Crucial DDR3L SO-DIMM 4GB ~ SanDisk ReadyCache 32GB SSD ~ Microsoft MCE model 1039 RC6 remote
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Messages In This Thread
RE: - by godson - 2013-10-13, 00:29
USB 2.0 vs. Class 10 vs. USB 3.0 - by xbs08 - 2013-12-13, 11:56


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