Why do I have 66,000 page outs?

Discussion in 'macOS' started by dogbone, Sep 24, 2005.

  1. dogbone macrumors 68020


    Sep 16, 2005
    S33.687308617200465 E150.31341791152954
    I have been watching my page outs since reading learning about it from a couple of memory threads.

    I've got 1.5gig of ram on an eMac 1.42GHz

    I started at zero pageouts this morning when I started up. There were about 500 after a while even though there was heaps of free memory. I'm just about to shut down and I notice a whopping 66,000 pageouts to only 120,000 page ins. This seems like a worrying proportion of page outs considering that I have plenty of ram and memory didn't seem to be being taxed all that much today.

    Should I be worried about this?
  2. gekko513 macrumors 603


    Oct 16, 2003
    Only if you experience slowdowns because of it.
  3. Mitthrawnuruodo Moderator emeritus


    Mar 10, 2004
    Bergen, Norway
    Are you running iTunes (with crossfading on)? That, especially when playing over AirTunes, always generate lots of page outs on my iBook even if there's free RAM (I have much less RAM, though ;)).
  4. lexfuzo macrumors 6502

    Mar 15, 2005
    The heart of Europe
    I don't think so. Especially if the computer doesn't feel slow.
  5. Sun Baked macrumors G5

    Sun Baked

    May 19, 2002
    If the machine sleeps at any time during the day the pageouts are going to go way up.

    One of the reasons to restart and then run a usual workflow check while you are at the machine to see if you are getting pageouts.
  6. BlizzardBomb macrumors 68030


    Jun 15, 2005
  7. Sogo macrumors 6502

    Jan 4, 2004
    More like, how do i check the amount of pageouts im getting.
  8. devilot Moderator emeritus


    May 1, 2005
    Applications>Utilities>Activity Monitor

    :edit: You also need to click on the 'System Memory' Tab

    Attached Files:

  9. cube macrumors Pentium

    May 10, 2004
  10. dogbone thread starter macrumors 68020


    Sep 16, 2005
    S33.687308617200465 E150.31341791152954
    I work from home so the machine often has short naps while I do something else. But why would the computer write to disk just because it sleeps. I thought the point of sleep was that it stayed right where it was ready to resume.
  11. iDM macrumors 6502a


    Jul 6, 2005
    The Commonwealth of PA/The First State-DE
    I have a feeling some people might get a kick out of this but my Page Ins/Outs are currently at 693440/638789. Is that like horrendous? When I open and close iPhoto (17,000 photos) my computer grinds to a halt. I have 512mb, 1.25 G4 Pb.
  12. Makosuke macrumors 603

    Aug 15, 2001
    The Cool Part of CA, USA
    Probably your issue right there--iPhoto (particularly older versions) chew up RAM with large numbers of photos, and the slowdown is almost certainly a result of 512MB just not being enough, so a bunch of swapping happens (bet you can hear the HD grinding away).

    And yes, pageouts in the hundreds of thousands is generally a sign of major swapping, and hence RAM shortage. Do you perhaps leave a whole lot of apps open all the time, particularly when firing up iPhoto? That certainly won't help when piled on top of the already major needs of iPhoto on 17K pictures.

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