Karl Kliem

when i have a jit.window on a second screen with os 10.5.2 i always get fluctuating frame rates. here is a demo patch. this one just changes between 48 and 60 frames, but with my big patch its much worse, changing between 30 and 60 frames. i tried to stop all my other processes in activity monitor.

as i don't have a computer with tiger anymore (can't install tiger on the new macbook pro) i'm not sure if it really is leopard related.

macbook pro 15" and 17", os 10.5.3, max msp 4.6.3, jitter 1.6.3 version

fluctuating-frame-rate-leopard-issue

can't believe it. i have two of the latest macbook pros here.

15" 2,4 GHz, 2GB RAM, GeForce 8600M GT with 256 MB VRAM

17", 2,6GHz, 2GB RAM, GeForce 8600M GT with 512 MB VRAM

even if i don't have an external display attached, i never get more than 59,9 fps. even when running the metro at 1 ms.

a mac pro with a tiger (10.4.11) and an ati radeon X1900 with 512 MB VRAM runs the patch at constant 60 fps on a second screen with 1600x1200 resolution fullscreen or constantly 100fps when have the jit.window on the first screen.

which graphics card do you have in the macbook pro?

can't believe it. i have two of the latest macbook pros here.
15" 2,4 GHz, 2GB RAM, GeForce 8600M GT with 256 MB VRAM
17", 2,6GHz, 2GB RAM, GeForce 8600M GT with 512 MB VRAM

even if i don't have an external display attached, i never get more than 59,9 fps. even when running the metro at 1 ms. 

ok. it depends on the refresh rate of the attached screen, because the sync attribute to jit.window is on by default. actually i need it to be on but still don't get, why it's fluctuating, which it didn't do in tiger.

and now that i switched from the dvi input of the screen to the analog vga input the frame rate behaves like expected. seems like i just forgot that i was using vga instead of dvi with my old tiger setup.

fluctuating frame rate: leopard issue?