1. 29 Aug, 2017 2 commits
  2. 20 Aug, 2017 1 commit
  3. 16 Jun, 2017 1 commit
  4. 19 May, 2017 1 commit
  5. 15 May, 2017 1 commit
  6. 23 Mar, 2017 1 commit
    • Cedric Roux's avatar
      fix issue 227 - UE IP settings disrupts realtime · cff91499
      Cedric Roux authored
      see oai/openairinterface5g#227
      
      When the UE connects to the eNodeB and receives its IP address from the
      network, it calls system() to set it in the linux kernel world. This call
      is not done in a realtime thread, but in the NAS, which uses its own thread,
      independent of the realtime processing.
      
      In some situations this totally disrupts realtime processing.
      
      It is difficult to know precisely why that happens, but it seems that calling
      fork(), as system() does, in a multi-threaded program is not a good idea. (So
      say several people on the internet.) It is not clear why the softmodem is
      impacted, but it seems that fork() is really what triggers the disruption.
      Several tests lead to that conclusion.
      
      To fix the problem, we create a child background process very early in main()
      (before anything else basically). Then instead of calling system(), the main
      process sends the string to the background process. The background process
      gets the string, passes it to system() and reports the success/failure back
      to the main process.
      
      This solution involves a lot of system calls, but calling system() in the
      first place is not cheap either. As long as no realtime thread uses this
      mechanism, things should be fine. Time will tell.
      cff91499
  7. 20 Feb, 2017 1 commit
  8. 17 Feb, 2017 1 commit
    • Cedric Roux's avatar
      T: let it compile with C++ · f9b5dafe
      Cedric Roux authored
      We now have 4 versions of T_HEADER:
       - bad quality C++ version with time
       - good quality C version with time
       - bad quality C++ version without time
       - good quality C version without time
      f9b5dafe
  9. 09 Feb, 2017 1 commit
  10. 02 Feb, 2017 1 commit
  11. 30 Jan, 2017 3 commits
  12. 25 Jan, 2017 3 commits
  13. 11 Jan, 2017 1 commit
  14. 09 Jan, 2017 1 commit
  15. 03 Jan, 2017 1 commit
  16. 26 Dec, 2016 1 commit
  17. 22 Dec, 2016 1 commit
  18. 21 Dec, 2016 1 commit
  19. 19 Dec, 2016 5 commits
  20. 12 Dec, 2016 1 commit
  21. 05 Dec, 2016 6 commits
    • Cedric Roux's avatar
      T: add 'throughputlog' logger · 9a0f32aa
      Cedric Roux authored
      Normally it is used to display throughput.
      
      The computation it does is to sum up the wanted value for the last
      second (1000 TTIs) and send this value to the views associated to
      this logger, at each TTI.
      9a0f32aa
    • Cedric Roux's avatar
      T: new view 'scolltti' · 2270dae1
      Cedric Roux authored
      This view is used to display throughput (to come in next commits).
      2270dae1
    • Cedric Roux's avatar
      T: some work on XY plot · 5b6a83fc
      Cedric Roux authored
      - change paint function:
        when the XY plot is resized we scale. Previously
        the last range was put in the middle of the new range
        (say when we increase the size).
        We may get aspect ratio changes if the resize is not identical
        vertically and horizontally, but I think this behaviour is more
        'natural'.
      - fix a bug:
        the last horizontal tick label was printed to far on the right,
        out of the bouding box of the XY plot. This is not totally fixed
        in the case the label is larger than the XY plot. Now the part
        out of the bounding box will be printed on the left. No big deal,
        make the plot big enough. (Before, even if big enough you had a
        problem.)
      - add a new vertical tick display, to be used for throughput mostly.
        See in enb.c the difference between 'input signal' and throughput
        plots (those throughput plots will come in later commits).
      5b6a83fc
    • Cedric Roux's avatar
      T: add widget 'textarea' · bff8e40d
      Cedric Roux authored
      It's like a label but with fixed dimensions and maximum
      characters' capacity at creation time.
      bff8e40d
    • Cedric Roux's avatar
      T: new function 'bps' · 031a72de
      Cedric Roux authored
      This function is used to print rates (say '1kb/s' or '16Mb/s').
      031a72de
    • Cedric Roux's avatar
      T: add TBS to ENB_PHY_DLSCH_UE_DCI · d7831c1f
      Cedric Roux authored
      d7831c1f
  22. 01 Dec, 2016 3 commits
  23. 30 Nov, 2016 2 commits
    • Cedric Roux's avatar
      T: change range of DL/UL MCS plots · f89c70df
      Cedric Roux authored
      [-1 29] was not very pleasant for MCS 28 or no DCI (value is -1 in this case).
      [-2 30] looks better.
      f89c70df
    • Cedric Roux's avatar
      T: bugfix: vertical tick was off by 1 pixel · cbc2164e
      Cedric Roux authored
      The problem was visible when DL MCS was set to 20
      (do a ping -c 192.172.0.1 -i0.2 to get it). The dots
      were not plotted at the exact line of the tick mark.
      
      Not sure the fix is always correct.
      
      No big deal anyway.
      cbc2164e