Questions re: Undo Number set in Preferences

[bbbbosox]

Based upon what I have read, the number of Undo's set in Edit > Preferences can consume quite a bit of memory.

Given that:

1. What is the recommended rule of thumb as to how many Undo's the Undo Preferences should be set to?

2. Does anyone have an idea how much memory is allocated for each Undo? Is it a variable number or some fixed number allocated for each Undo?

3. In either case, does anyone know what these numbers would be?

 

[oldnewbie]

Don't think I've ever changed the number of undo's, and there presently set to 100, which must then be the default I guess! Seems it can be between 2 and 300.
As for memory allocated... Why do you ask? Are you on Mac?

Regards,

 

[bbbbosox]

Yes, the default seems to be 100 - at least that was the initial setting I saw. I changed it to 25. Since lowering it, the problem I was encountering seems to occur less often.

No, am not using a Mac. Using a generic PC, Pent III 500 MHx, 256 MBytes of main memory. What I experienced after a given period of time is a lock-up or freeze, if you will. I work mostly off-line, have shut down all the background tasks, etc and still experienced it. From my readings, I ran across the Undo Preference settings and the words to the effect ... it can eat up alot of memory. It would seem to me, dependent upon what the Undo parameter is set to, the Flash program, assuming it does memory management directly or indirectly, would allocate a certain amount of main memory aside for the Undo's. I don't know the inner workings of how the program does this ... whether it's a static allocation based upon the Undo parameter value or a dynamic allocation based upon the how much activity has been done up to a given point. It has to save everything you do up to whatever number you have set for the Undo parameter, right?

Guess it's my nature to want to understand what is going on under the hood so to speak. And anyway I can minimize unnecessary memory allocation, I would like to do so. Having a large Undo parameter can apparently waste a lot of memory ... at least according to what I have read.

 

[oldnewbie]

Well, mine's been set to 100 for over a year, and I only have (...will be upgrading in the next few weeks!) but a PII-350 with 128MB of ram! I often had several applications running together (including Flash 4...), and never really experienced any real slowdowns or crashes not due to my own bad programming, like getting into endless loops.
Must be like same model cars and the sort... Some are great, other are but acceptable!
Hope I upgrade to one of the greats!

Regards,