nMP graphics memory usage on Yosemite

Discussion in 'Mac Pro' started by BurgDog, Oct 30, 2014.

  1. BurgDog macrumors regular

    Apr 22, 2012
    I have a 6c stock nMP. I have been using iStat Menus and one of the displays is a bar graph showing memory usage of the graphics cards. When using Mavericks, card 1 memory shows not being used and card 2 memory shows small usage as that card drives the display.

    When running Yosemite, card 1 still shows not used, but card 2 shows steadily increasing memory usage over time fairly quickly ending up with about 90% usage where it stabilizes. This happens even if nothing is running other than the OS.

    When I run Handbrake on Mavericks I get about 95-99% CPU usage. When I run same compresses on Yosemite I get 85-90% CPU usage. Seems strange and I am suspecting it is because of what is happening with the graphics memory.

    Possibly a memory leak of some sort in Yosemite. I was wondering if anyone else is seeing this.

    I have returned to using Mavericks for now.
  2. maplingstorie macrumors 6502

    Jan 25, 2009
    I am seeing this as well. How strange. :/

    Attached Files:

  3. BurgDog thread starter macrumors regular

    Apr 22, 2012
    Yep, that's exactly what I see on Yosemite. This is what I see after running Mavericks for a while. Just as a comparison.

    Attached Files:

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