What process write on my SSD constantly (more than 800MB) ?

Discussion in 'OS X Yosemite (10.10)' started by XPcentric, Sep 27, 2015.

  1. XPcentric, Sep 27, 2015
    Last edited: Sep 27, 2015

    XPcentric macrumors 6502

    Joined:
    Oct 16, 2008
    #1
    Looking in Activity Monitor under Disk tab, I can see what applications write to disk and how much MB.
    But, at the bottom the total shown is much greater than what all apps combined write. So I want to know which process writes all that extra ? I found that it is mds_stores, so I will google it..

    I have to mention that:
    - I disabled Computer to sleep in Power saving preferences
    - I have installed Chameleon SSD optimiser and disabled hibernation/sleep image.
    - Also I got rid of the swap file, I don't remember how I disabled that
     
  2. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #2
    mds_xxxxx is part of Spotlight I think. 800MB over what period?
     
  3. XPcentric thread starter macrumors 6502

    Joined:
    Oct 16, 2008
    #3
    800MB in a period of less than one hour from the moment I started the system.
    I don't know how much it accumulates until the end of the day but I will check.. Is it just me that thinks its too much writing ?
     
  4. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #4
    Boot into Safe Mode and see if that process still causes lots of writes, if it doesn't then look to your login items for the potential cause.
     
  5. XPcentric thread starter macrumors 6502

    Joined:
    Oct 16, 2008
    #5
    Thanks a lot for suggestions,

    I have not booted into single mode, as that required to do some more research,
    but I disabled Spotlight and that solved the problem with mds.

    Meanwhile I managed to render Terminal not to start by changing some file permissions, as I wanted to look where written files are located, the biggest file written is snapshots.db now not needed anymore..
     

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