Tiger: what is the 'mds' process

Discussion in 'macOS' started by mainstreetmark, May 3, 2005.

  1. mainstreetmark macrumors 68020


    May 7, 2003
    Saint Augustine, FL
    I have a process popping up every so often called "mds" by Activity Monitor. I can't work out what it does or where it's running from.

    The reason I ask, is it starts using up like 30 or so percent of my CPU.

    I'm trying to track down all these beachballs i'm suddenly getting on my PB17 1.33GHz/1G ram. Annoying.
  2. DXoverDY macrumors 6502a

    Apr 19, 2005
    taking a guess here.. MDS Meta Data Something... so related to spotlight. spotlight probably makes itself available as a service so that's what that is.
  3. micsaund macrumors 6502


    May 31, 2004
    Colorado, USA
    Slightly OT:

    I noticed that I had a "DashboardC" process running (only showed in top, not in the GUI monitor and I could not figure-out how to widen the top output to see past the "C") that was eating 50% of my CPU last night. I needed the CPU for another process that was fighting with it, so it was not a case of just using idle time. I did a kill on the process and it then played nice and dropped to an occasional 3% or so of the CPU (most times, 0%). I had just installed several new widgets, so maybe something had gone wacky with that, but I don't know for sure.

    Anyone else seen this?

  4. Makosuke macrumors 603

    Aug 15, 2001
    The Cool Part of CA, USA
    I was wondering this myself; at one point it started chewing up almost an entire processor (on a dual system) for a little while. After that I watched it for a bit, as it's is still running in the background, and it seems to hop up to 3-5% use every once in a while.

    Hopefully somebody will be able to clue us in on what it does.
  5. seisdrum macrumors newbie

    Nov 25, 2005
    I found that


    It really seems to be a part of Spotlight, namely the indexer.

    There's some way to disable it for certain mounted volumes, a command line tool that you should invoke via Terminal:


    or better at first

    >man mdutil

    To really change anything, you need to be root / have root access, and hence you'll probably use


    Hope that helps ... to post it here, even if it's an old thread. I found it via google.
  6. Sean Zhu macrumors newbie

    Mar 13, 2009
    "DashboardC" is probably DashboardClient which is Dashboard. Its app file is located in the Dock app at /System/Coreservices/. (The Dashboard app in /Applications only tells Dashboard to start of show itself.)
  7. Saladinos macrumors 68000


    Feb 26, 2008
  8. DoFoT9 macrumors P6


    Jun 11, 2007

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