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  1. #1


    Member Since
    Jan 19, 2012
    Posts
    4
    Image editing programs - heavy memory usage
    I am wondering whether the memory use I see is common to the Mac OS X - touted as the graphics pros choice - it's seems anything but to me.

    I have a mid 2010 iMac 27"

    • 3.2 GHz Intel Core i3
    • 12 GB 1333 MHz DDR3
    • ATI Radeon HD 5670 512 MB
    • Mac OS X Lion 10.7.4


    That spec should be more than ample. No.

    Pixelmator uses up to 5GB yes - GB) just opening the app. If I dare to open an actual image - let's say a 120mb jpg for editing - the memory usage is even higher - usually resulting in the image not opening at all.

    GIMP is similar, but not as extreme - opening the file uses around 2GB.

    Nevertheless, both of the above seem to me to be examples of excessive memory usage. Certainly, my machine slows to a crawl when doing anything related to images - pretty hopeless really.

    Pixelmator developers ask for buckets of info (supplied) but no solution.

    So, my question is, is this type of memory usage common for the Mac OS X?

    If it is, it is, clearly, not the wonderful graphics solutions touted by Apple and it's followers.

    NB. I am a very experienced user of PC's and fairly new to the disappointing world of Apple.

    Any feedback welcome,

    Cheers,

    Mike

  2. #2

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,842
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    I have a 2ghz Core2Duo 13" Unibody with 4gb ram - Photoshop CS4 - no issues at all. Handles large, multi-layered images without issue.

    I'll fire up my iMac and check the ram usage with Photoshop CS5 to get you some more comparable stats. Though I've never had a performance issue and deal with 100mb-200mb panoramic PSD files along with more regular 14mp+ images.

    Don't use GIMP or Pixelmator.

    Where's the RAM from? Genuine Apple stuff? or guaranteed compatible?
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  3. #3

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,842
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Air 2, New AppleTV (4?)
    27" i7 iMac 2009, 8gb RAM

    Photoshop CS5 'at rest' uses 277mb
    with 200mb of files loaded it uses 1.92gb

    While 2 gb is a reasonable chunk that's nothing more than I'd expect and no slowdown is noticeable in CS5 or system wide.

    My gut feeling is that you have either a disk or ram issue.

    The best place to start is a Permission and Disk repair in Disk Utility. Also make sure you have enough free disk space for the apps scratch disks etc.

    You may also want to run the automated scripts in a tool like Onyx to clear down your caches etc.

    Do you encounter issues day-to-day on the system or just using Pixelmator and GIMP?
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  4. #4


    Member Since
    Jan 22, 2010
    Location
    Victoria, BC
    Posts
    20,911
    Specs:
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    Sir: something is wrong, and it's on your end.

    Here's a screenshot from my Activity Monitor, seconds after opening Pixelmator:


    Screen Shot 2012-06-16 at 1.21.39 AM.png


    So as you can see, your experience is not typical. That's probably why the Pixelmator developers wanted to see logs and such.

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