general osx performance question

Discussion in 'macOS' started by Cubiq, Oct 18, 2008.

  1. Cubiq macrumors newbie

    Joined:
    Apr 18, 2008
    #1
    I have a 3,06GHz 24" iMac which I love. What I really don't understand is why my mac is able to run 3d games at 120fps but itunes lags when scrolling a couple of hundreds songs, or opening a dock folder becomes deadly slow with just a dozen files in it, or again firefox and safari become unresponsive with very long pages (maybe with flash).

    The other day I was playing with itunes on windows and I was surpriced to see that it was more responsive than the mac counterpart. What is happing? Will the snow leopard help overall performance?

    Please note that I am complaining about mac performance, I will never let a win machine enter my home/office again :) I'm just wondering why the finder and generally common UI tasks are sometimes slower than linux or windows.
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Something doesn't sound quite right. You may want to repair permissions or check to see what else is running. I can high-speed scroll though my almost 30,000 song library in iTunes on a 2.5GHz MBP without a hiccup. I've never had a problem opening folders on my Mac HD or external drives, either. Something's amiss!
     
  3. Drag'nGT macrumors 68000

    Drag'nGT

    Joined:
    Sep 20, 2008
    #3
    I'm not totally sure why you're having those issues. My iMac (sig) isn't as beefed up as yours and iTunes loads much faster than you're saying you're getting. It loads 2443 songs with art in ~3-4 sec.

    I agree with you about the flash issue with safari load times. I believe that is an issue that Snow Leopard will fix. Someone will correct me if I'm wrong.

    I don't game on computers, I leave it to consoles so that is something I can't speak to.
     
  4. Catfish_Man macrumors 68030

    Catfish_Man

    Joined:
    Sep 13, 2001
    Location:
    Portland, OR
    #4
    In general, "why is this slow" is a difficult question to answer *even for the developer of the program*. Apple provides some superb tools for diagnosing performance issues (Shark, sample, Instruments, etc...) but they do require a good bit of programming knowledge to use and interpret correctly.

    <edit>
    Drag'nGT: I see no reason to expect that Snow Leopard will change the behavior of Flash significantly.
    </edit>
     
  5. SmurfBoxMasta macrumors 65816

    SmurfBoxMasta

    Joined:
    Nov 24, 2005
    Location:
    I'm only really here at night.
    #5

    SL already has the tools (openCL & GPU offloads), if only Adobe will get off it's arse & rewrite flash to take advantage of them, like they did for CS4..........
     
  6. Catfish_Man macrumors 68030

    Catfish_Man

    Joined:
    Sep 13, 2001
    Location:
    Portland, OR
    #6
    Flash 10 already uses the GPU, via OpenGL.
     
  7. Cubiq thread starter macrumors newbie

    Joined:
    Apr 18, 2008
    #7
    I have the feeling that there's a lot of not well optimized HP inside this mac.

    Another example. I use dvdpedia to manage my dvd/bd collection. Why is it so slow to scroll covers? I don't play games on my Mac but I'm sure that any modern game can play full screen 60fps... but I can't scroll through my dvd collection?

    I usually put in my dock a couple of most used folders. I sort item by date, display as folder, view content as grid. When there are more than (say) 30 elements inside the folders I get a very laggy animation of the opening stack. I can edit my hd movies in realtime, but opening a folder is slow? Isn't this a paradox?
     
  8. kaworu1986 macrumors member

    kaworu1986

    Joined:
    Jul 5, 2007
    #8
    I was wondering about OSX performance as well: apart from boot times everything, especially the UI, seems more sluggish than windows; then there's the stuff that is undoubtedly slower, like videos: I tried opening a small mpeg1 music video in iTunes and it was stuttering.
    For all the praise OSX gets one would imagine it should be able to handle stuff like media playback at least on par with the competition.
    Clarification: I am comparing OSX 10.5 to Vista installed on the same mac with bootcamp.
     
  9. Catfish_Man macrumors 68030

    Catfish_Man

    Joined:
    Sep 13, 2001
    Location:
    Portland, OR
    #9
    Sequential disk IO is a lot easier to optimize than random access. You can prefetch data very effectively, for example. Again, without applying the proper tools, generalizing and guessing about performance is basically meaningless. Even experienced programmers working on their own code are consistently wrong about why it's slow.
     

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