fps all over the place in Max5


    Apr 23 2008 | 4:14 am
    I'm testing out Jitter right now in Max5 for the first time using the jit.op help file. For some reason, the fps oscillates between 6-15fps. I have overdrive turned on, otherwise all the settings are straight from the install. I am running Max 5 on a 2.0GHz Intel Core Duo Macbook Pro w/ OS X 10.5.2. This patch runs at 30fps in Max 4.6.3 / Jitter 1.6.2.
    Is there a way to optimize the scheduler? Any advice?

    • Apr 23 2008 | 4:33 am
      On Apr 22, 2008, at 9:14 PM, Steve Belovarich wrote: > > I'm testing out Jitter right now in Max5 for the first time using > the jit.op help file. For some reason, the fps oscillates between > 6-15fps. I have overdrive turned on, otherwise all the settings are > straight from the install. I am running Max 5 on a 2.0GHz Intel Core > Duo Macbook Pro w/ OS X 10.5.2.
      That's odd. It's a pretty steady ~30 fps on my similar machine. You could try increasing the frequency of the qmetro which was upped to be not so extreme in the Max 5 help patches and see if that gives any difference, but unless you have something else open in Max 5 on your machine, taking up CPU, I can't think of what would lead to this.
      -Joshua
    • Apr 23 2008 | 10:59 am
      I'm not seeing those oscillations, but when trying out the "discocubes" patch I posted last week in 5, I get a steady 6fps with 200 cubes, sync 0 and qmetro 10. This as opposed to 46fps with the same settings in 4.6
      MBP 2.33 intel core 2 duo, OS 10.4.11, 2gb ram, x1600 256Mb.
    • Apr 23 2008 | 12:50 pm
      Ok,
      I noticed the movies I were trying were H.264 MP4s. So I dumped a couple H.264 MOVs into the patch and saw a considerable hike in performance (from 6-15fps now to 75-106fps). Still not a steady framerate by any means... but workable now!
      I wonder, is Photo JPEG still the way to go in Max5?
      Max 5 is amazing, great work to everyone who developed it! The video installation I've been working on for months in Max 4.6.3 seems to actually enjoy a performance increase in Max 5, by about 5 fps on my Macbook Pro.
      Steve!
    • Apr 23 2008 | 2:58 pm
      > I noticed the movies I were trying were H.264 MP4s. So I dumped a couple > H.264 MOVs into the patch and saw a considerable hike in performance (from > 6-15fps now to 75-106fps). Still not a steady framerate by any means... > but workable now! > > I wonder, is Photo JPEG still the way to go in Max5?
      Certainly. Nothing w/r/t Codecs have changed. h.264 is typically *much* more expensive to decompress than Photo JPEG. If you have every frame a key frame, however, maybe it approaches Photo JPEG performance.
      > Max 5 is amazing, great work to everyone who developed it! The video > installation I've been working on for months in Max 4.6.3 seems to > actually enjoy a performance increase in Max 5, by about 5 fps on my > Macbook Pro.
      Glad to hear!
      -Joshua
    • Apr 23 2008 | 3:37 pm
      On Apr 23, 2008, at 3:59 AM, Brecht wrote: > > I'm not seeing those oscillations, but when trying out the > "discocubes" patch I posted last week in 5, I get a steady 6fps with > 200 cubes, sync 0 and qmetro 10. > This as opposed to 46fps with the same settings in 4.6
      Thanks for the example. I can reproduce, and we'll work on improving this in a near update.
      -Joshua