How does Fast User Switching work?

Discussion in 'macOS' started by seppevs, Feb 1, 2010.

  1. seppevs macrumors newbie

    Joined:
    Oct 3, 2009
    #1
    Hi,

    I have a quick question on how "Fast User Switching" is implemented in OS X. I have added an account in OS X yesterday for my wife, and I have enabled fast user switching.

    Now, what I wonder:
    - Do my downloads continue when my wife switches to her account? Example: Transmission (bittorrent), will it continue with uploading/downloading when my wife switched to her account?
    - Do my applications continue to run when my wife switches to her account? Example: Handbrake (converting a movie). Will it continue with converting while my wife switched to her account?

    And I have almost the same questions for the case when I click "Login Window" (screenshot: http://www.askdavetaylor.com/0-blog-pics/mac-fast-user-switching-menu.png ). Do my apps continue to run & download then?

    Thanks for the answer. I can't test it right now myself because I'm currently not at home (and on a Windows machine).
     
  2. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #2
  3. seppevs thread starter macrumors newbie

    Joined:
    Oct 3, 2009
  4. robbieduncan Moderator emeritus

    robbieduncan

    Joined:
    Jul 24, 2002
    Location:
    London
    #4
    I would note that applications can detect the switch. For example I'm pretty sure iTunes does this and pauses and Adium can set your status to Away when you switch out of your account...
     
  5. mvmanolov macrumors 6502a

    Joined:
    Aug 27, 2013
  6. MattInOz macrumors 68030

    MattInOz

    Joined:
    Jan 19, 2006
    Location:
    Sydney
    #6
    You can test this with activity monitor, apps assigned to the background user should still show up in cpu and network use if you have filtering set to "All Processes". The User column will tell you which are your's and which are your wife's applications, plus a gaggle of system users.
     
  7. MattInOz macrumors 68030

    MattInOz

    Joined:
    Jan 19, 2006
    Location:
    Sydney
    #7
    The server parts will start before you even hit the User login window.
     

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