What does PID besides Iphone Processes means

Discussion in 'iPhone' started by johnsonxray, Jun 12, 2011.

  1. johnsonxray macrumors member

    Joined:
    Apr 20, 2011
    #1
    I got a system manager and on that processes running page..I got something like:
    881 Springboard
    886 imagent
    484 misd
    456 SCHelper
    34 Notifyd
    32 BTServer
    and the list goes on..
    I know they are all the processes running on the iphone..but what does those numbers means..It has a column, namely, PID..err let me guess, the larger the number means the more frequent u use that particular process? or what else..How do I read them..and look at my springboard 800+..is it going to drain battery cos I always refresh the springboard?
     
  2. cube macrumors G5

    Joined:
    May 10, 2004
    #2
    Process ID. It is a number which uniquely identifies the process that can be used with Unix commands.
     
  3. johnsonxray thread starter macrumors member

    Joined:
    Apr 20, 2011
    #3
    so which means the larger the ID number the more you used that process?
     
  4. cube macrumors G5

    Joined:
    May 10, 2004
    #4
    No, it is just a generated number that is assigned when the process is created to identify it. It means nothing.
     
  5. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #5
    No. The ID is simply a unique ID (they get re-used eventually but it is unique amongst running processes) assigned when the process starts. It has nothing to do with frequency. Until the IDs loop a large ID indicates the process started later since the last reboot.
     
  6. johnsonxray thread starter macrumors member

    Joined:
    Apr 20, 2011
    #6
    oh..I thought I can track which are the processes that draining the battery by looking at ther larger number =(
     

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