Guidelines for STV/STVi programming for Extenders?

[MeInMaui]

Hi,

I've been working on improving fan art support and performance in SageMC. At this point, performance is very good on the client computer that I use for development. The problem is that when I try it out on my HD200 it seems like everything I do to try to improve performance seems to instead slow it down.

A number of the things we have attempted involve the use of java methods. For instance in the latest iteration, a java method was written to scale down background images to the UI resolution and then cache them in a local folder so that the scaling only has to be performed once. The method then returns a sage metaImage object. This seemed to speed things up on my client computer, but it seemed to bog down the HD200 even more.
So my questions are:

• Are there any guidelines or best practices for keeping the UI responsive on extenders?
• Is there information available describing what processing is actually done on the extender vs. on the server?
• Would performance limitations be centered more around disk IO, image processing (scaling), or rendering?

Any information would be appreciated. Thanks!

Aloha,
Mike

[Opus4]

I'm not sure what to say other than suggest a couple things to check:

How many animation layers are in use? Too many layers could cause performance issues. The default STV limits itself to using 3 layers. A couple more might not hurt the HD200, but beyond that... ?

Check the log to see what is happening -- does the log indicate repeated attempts to reload the image and/or clear the cache to make more room to load something? Checking the log to see what is happening with memory would probably be the most important thing you could check.

- Andy

[MeInMaui]

Originally Posted by Opus4

I'm not sure what to say other than suggest a couple things to check:

How many animation layers are in use? Too many layers could cause performance issues. The default STV limits itself to using 3 layers. A couple more might not hurt the HD200, but beyond that... ?

I keep SageMC limited to 3 layers as well.

Check the log to see what is happening -- does the log indicate repeated attempts to reload the image and/or clear the cache to make more room to load something? Checking the log to see what is happening with memory would probably be the most important thing you could check.

- Andy

I'll definitely look at this. Thanks.

Aloha,
Mike