Memory and file size strategy
Jeanne A. E. DeVoto
jeanne at runrev.com
Sun Oct 19 18:06:46 EDT 2003
At 2:43 PM -0700 10/19/03, Jim Hurley wrote:
>I have a project which has 5 components. Each of these components is
>I want to keep the file size and the memory-use to a minimum.
>To keep the file size to a minimum, I presume I should use a one
>main stack with 5 substacks.
>But won't the substacks be loaded into memory as the main stack is
>opened? Is there a way for each of the substacks to be loaded into
>memory only as called for? And each substack closed and removed from
>memory (destroystack = true for each substack) when not in use?
A stack file is loaded into memory all at once - main stack plus any
substacks - so this isn't an optimal strategy for reducing memory use.
If you move your substacks into separate stack files, though, they
can be loaded "on demand", and when closed will be removed from
memory (assuming their destroyStack and destroyWindow are true).
There are some additional approaches you may want to look at,
depending on the nature of the application:
- Keep media (pictures, movies, sounds) in separate files, using
referenced images and players instead of imported images and audio-
and video-clips. Referenced media doesn't need to be loaded into
memory until you go to a card that the image or movie is used on.
For example, if you have a stack with many cards that has a large
image on each card, you can save a lot of memory by keeping the
images in external files and setting the filename property instead of
importing them into the stack.
- Keep large hunks of text in separate files, reading them in only
when necessary. For example, for a stack that includes a number of
lengthy historical documents, you can store the documents' htmlText
in separate files until the user calls for a specific document to be
- Consider using an external database to store large amounts of data
that need to be searched and sorted.
Jeanne DeVoto ~ jeanne at runrev.com ~ http://www.runrev.com/
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