intel performance / jit.rota


    Mar 23 2007 | 10:37 am
    hello out there!
    since years i use a very simple patch including jit.rota for moving arround the video source. in the moment i use it on my powerbook g4, 1,5 ghz... and it works very well (640x480, 25fps constant).
    today i tried it out on a intel machine for the first time, and i was shocked. (imac intel core duo 2,16ghz, 1gb ram, 10.4.9 osx, max 4.6.2, jitter 1.6.2, quicktime 7.1.5): even with a resolution of 320x240 the framerate gets down to 15-16 fps!!! (my old ibook g3 worked better...)
    does anyone know the reason for that, and what can i do? i would like to buy a macbook pro...
    thanks!

    • Mar 23 2007 | 1:20 pm
      you might be opening this in rosetta, or running your max msp as a
      ppc app, not as an x86 app?
      send the patch.
      I had HUGE performance gains moving to intel.
      On Mar 23, 2007, at 11:37 AM, expjektor wrote:
      >
      > hello out there!
      >
      > since years i use a very simple patch including jit.rota for
      > moving arround the video source. in the moment i use it on my
      > powerbook g4, 1,5 ghz... and it works very well (640x480, 25fps
      > constant).
      >
      > today i tried it out on a intel machine for the first time, and i
      > was shocked. (imac intel core duo 2,16ghz, 1gb ram, 10.4.9 osx, max
      > 4.6.2, jitter 1.6.2, quicktime 7.1.5): even with a resolution of
      > 320x240 the framerate gets down to 15-16 fps!!! (my old ibook g3
      > worked better...)
      >
      > does anyone know the reason for that, and what can i do? i would
      > like to buy a macbook pro...
      >
      > thanks!
      v a d e //
      www.vade.info
      abstrakt.vade.info
    • Mar 23 2007 | 1:29 pm
      Quote: vade wrote on Fri, 23 March 2007 14:20
      ----------------------------------------------------
      > you might be opening this in rosetta, or running your max msp as a
      > ppc app, not as an x86 app?
      > send the patch.
      >
      > I had HUGE performance gains moving to intel.
      >
      Same here. Send the patch and I'll compare.
      Mattijs