Comments on: A scientific performance comparison: Flex/Flash vs. JavaFX vs. Silverlight vs. JavaScript

By: ali

ali — Thu, 16 Jun 2011 22:51:18 +0000

Thank you very much,,, valuable work.

By: Timo

Timo — Sat, 28 May 2011 01:04:41 +0000

Yeah, you’re right.
I have to admit, that the 2D test is a little unfair, indeed.

By: Johannes Rössel

Johannes Rössel — Sat, 28 May 2011 00:16:22 +0000

Indeed, the 2D graphics comparison was a pretty unfair one. Basically you were comparing immediate mode graphics APIs (HTML Canvas and the Flash one) to a retained mode API (Silverlight).

Basically, what Silverlight has to do in that case, is to send 5000 objects through its drawing and layout chain. That’s probably the equivalent attempting that animation with 5000 div HTML elements.

Silverlight 3 comes with a WritableBitmap class which, essentially, is what you should have been using there. The API is fairly thin, but at least you have only a single UI element instead of thousands, making it equivalent to the JS and Flash benchmarks.

By: Timo

Timo — Sat, 12 Feb 2011 11:41:30 +0000

Hey, thanks a lot.
The download worked perfectly!

By: vsi

vsi — Sat, 12 Feb 2011 04:08:16 +0000

Timo, I’m not exactly sure what explains such a big difference. I just happen to know from experience, but I’m sure there is a scientific explanation

I uploaded my version of Test2DView.xaml.cs here
http://www.filedropper.com/test2dviewxaml

I didn’t touch any other files. If for whatever reason you can’t download the file (I’ve never used that service) I can upload it somewhere else or email it to you.

By: Timo

Timo — Tue, 08 Feb 2011 22:17:52 +0000

Wow, that’s very interesting to hear, Vsi.
I must admit that I am not a C# expert.
Do you know what exactly changing the attached property to top (internally) does?

Do you have a runnable version of your mod somewhere for me to try out?
I’d also be interesting in your source code.

It’s still astonishing that removing and re-adding the objects from and to the stage tages quite a while in SL. The other runtimes did a lot better there.

By: Vsi

Vsi — Tue, 08 Feb 2011 21:07:37 +0000

Impressive stuff, man. One comment about the SL version of 2d-test. Instead of repeatedly removing rectangles from the canvas and adding them back on every move, you should simply change their attached property Top, which should improve performance quite a bit. After changing that and eliminating the delay between the rounds the FPS went from 10-11 up to 60 on my machine.

By: Timo

Timo — Sun, 17 Oct 2010 18:13:53 +0000

Glad that you liked it :-)

By: nik spoza

nik spoza — Sun, 17 Oct 2010 17:23:39 +0000

Awesome, up to date, detailed and fact based work Timo. Your link has been definitely added to my bookmarks

By: antonio brandao

antonio brandao — Thu, 16 Sep 2010 18:43:15 +0000

amazing work thanks for sharing Timo