CCContentManager.SharedContentManager.GetAssetStreamAsBytes(fontName, out fontName); cause too much memory overhead

[imkow]

It causes my app too slow loading a scene with several CCLabel. Unacceptably slow.
The image shows the data collected by Xamarin Profiler. That's memory allocation when using CCLabel with Chinese TTF font. I checked your code in CCLabel-Android.cs (running on Android), GetAssetStreamAsBytes in CreateTextSprite() does nothing but check whether the font file asset can load. Am I right? Please fix the memory overhead problem.

[imkow]

Looks like GetAssetStreamAsBytes which invokes GetAssetStream() does unnecessary Stream.CopyTo(), the operation costs too much resources.

[Therzok]

I'm taking a look at this. For now, I can see a problem where the memorystream is being reconstructed many times, so setting a new memorystream with the old stream's length should be a good start.

[Therzok]

Actually, we can directly read into a byte[] from the stream, I'm going to do that.

[Therzok]

Can you try this branch and see if it fixes your problem? I'll come up with numbers soon.

[kjpou1]

@imkow Can you send us the .mlpd resulting file of the profiler output for this profiling session that you did.

[imkow]

i tested, it'ok now. @kjpou1 still need it?

[Therzok]

@imkow any kind of profiling data would help us fix more cpu/memory issues.

[imkow]

@Therzok @kjpou1 no other issue in the profile resulting file, thanks. I would report if found any other problem.