NAS / OpenMediaVault

[fire219]

Well, I tried iozone with 1GB "file" :

Code:

                                                     random    random     bkwd    record    stride
             kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
        1024000       4    21398    30223    77006    76949    74991    28235
        1024000      16    54907    77383   245716   246803   239836    73787
        1024000     512   118921   132870   322434   312990   323876   126180
        1024000    1024   117895   147201   304274   318403   316472   121843
        1024000   16384   125973   120491   320027   321014   320234   129416

Past reclen=16, speed is ok for me (I could live with it ).
So why is speed so low when transferring file from my PC to the SSD on the Rock ?

Those iozone numbers look good, though a little low on the write. 320MB/s read (as is shown on the final test) is close to the maximum of USB3 with overhead. Performance is always going to be terrible on small file chunk sizes (that's the reclen column -- record length) on any system, even with an SSD.

But this shows that it's not a problem with the Rock64 (or at least not with the USB3 controller and UASP drivers). I'm not sure what could be causing the problem. You may want to check network performance on your R64 (try using iperf3).