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Big drawing lag on imac

Yesterday the new schoolyear started and i have a classroom with 16 imacs running TVP animation 9.0 that al lag with drawing.
a fast circle results in a half circle because the beginning of the line is straight. hetching a row of lines results in only a few dots because most strokes don't even register.
its the biggest lag i've ever seen in tvp
we also get a lot of those spinning rainbow umbrellas between actions.

the cache is set to automatic (as it should right?)
in another thread Hervé asked for the proxy setting; the datarate is 20MB/s while the machine computes at 57 MB/s


specs:
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 2 GB
Bus Speed: 800 MHz

System Version: Mac OS X 10.5.8 (9L30)
Kernel Version: Darwin 9.8.0
Boot Volume: Untitled
Boot Mode: Normal
Computer Name: Media Intel (71)
User Name: Student (student)
Time since boot: 1 day1:54

Wacom : CTE 440

Try to set the proxy to "RealTime".

Help i'm now in class

i don't have the real time option!

only:
Proxy
No proxy
render

Peter Wassink wrote:Help i'm now in class

i don't have the real time option!

only:
Proxy
No proxy
render

No Proxy

What are the advantages of the three different proxys?

M.

Hervé wrote:

Peter Wassink wrote:Help i'm now in class

i don't have the real time option!

only:
Proxy
No proxy
render

No Proxy

i tried that but no difference, all three options exactly the same drawing error..... help

1: install the update
2: look in the activity monitor if no other process use the cpu time
3: look in the activity monitor if no other process access the disk
4: look in the preference panel where is the temp file
5: look is there is free space on this disk
6: check in the problem appear on other software
[edit]
7: Check the wacom drivers ( and the USB port )
8: Set openGL off ( OSX Only, in the preference panel )

Check the wacom drivers
Set open GL off

elmisilhumano wrote:What are the advantages of the three different proxys?
M.

There is only one proxy with different settings:
-inactive ( build the display in realtime during the playback )
-render in a background task ( load proxy image during the playback )
-render before playing ( render all proxy images before the playback )

elmisilhumano wrote:Check the wacom drivers
Set open GL off

Good point !

Hervé wrote:

elmisilhumano wrote:What are the advantages of the three different proxys?
M.

There is only one proxy with different settings:
-inactive ( build the display in realtime during the playback )
-render in a background task ( load proxy image during the playback )
-render before playing ( render all proxy images before the playback )

But I don't know what is best to use? Which one uses most of the memory? Is some better with the short clips some better with the bigger projects?
My mac have a lot of memory and speed but sometimes my mac with tvp still get slow with bigger projects.

M.

Hervé wrote:

elmisilhumano wrote:Check the wacom drivers
Set open GL off

Good point !

how to do it on a mac?

can't find it

Peter Wassink wrote:

Hervé wrote:

elmisilhumano wrote:Check the wacom drivers
Set open GL off

Good point !

how to do it on a mac?
can't find it

in the preference panel ( only with the OSX version of TVPA )

i'll try all options from the list.. (not easy for me on a mac )

1
i downloaded 9.5 (cool that its also ready for standard!)

2&3 cant find the activity monitor
edit; found it and it seems to work fine




4
/tmp/ ?


5
200+ GB

6
in photoshop no problem

7
the wacom drivers is version
5.1.1-1
2002-2009 its the latest

8
and it had an openGL function but is was off
still
the problem persists

So nothing works alas
we also tried it with an intuos3...but same problem:
the beginning of the line is not registered, but once drawing starts it draws as normal

Roderique the HKU system manager suggested that it might have to to with the graphics card?
i hope a solution can be found before next weeks lesson
Roderique can test your suggestions on Monday and Tuesday, i am only here on Friday morning.

4 circles, nr 4 is what happens if you continue drawing... it works as normal graphics card info: