Mixed Mode CPU usage

CEOGavin 2015-06-02 12:39:01 UTC #1

Every time I load a Mixed Mode demo on any of my browsers, I see a surge in CPU usage. I wonder what it would be doing on the phone.

Has anyone observed it on their end?

PS - The screenshot is from "iStat Menus".

CEOGavin 2015-06-02 14:02:10 UTC #2

I found this really interesting - http://nimbu.in/html5devconf-oct/#/step-1

Thoughts?

gadicc 2015-06-02 15:58:01 UTC #3

How intense is the demo? Can you give some sample links?
As I understand it, as of mixed mode, if nothing is moving, CPU (for that app) should be near 0 - assuming the demo is well designed.

For a clear reading, you should probably only have 1 window / 1 tab open, and then the CPU / GPU usage in the chrome task manager (shift-esc). This is on OSX, right? What version of Chrome? And you say this is on all your browsers, which others?

Note that things like having a transparent window from some other program over your browser window can affect rendering.

Also, assuming this is for pure famous demos, it's probably better to report this upstream. I'm not an expert on famous' internals, unfortunately. But the info I asked for here will probably help them a lot :>

Re the link; yeah, these are all the kinds of principles famous adopts. There are a few crucial links in there to very NB info, but, a lot of that stuff famous handles for you so you don't have to. Not everything though and some useful stuff to keep in mind; a few things are mentioned at http://famous.org/learn/pitfalls.html.

CEOGavin 2015-06-02 16:14:07 UTC #4

I simply opened this URL in Chrome - http://www.tutas-labs.com/famous-mixed-mode-and-meteor-integration/
OSX 10.10.3
Chrome 43.0.2357.81

Thanks. I'll keep an eye on those pitfalls

gadicc 2015-06-03 10:07:35 UTC #5

Got it. Can you try find some pure Famo.us demos (without Meteor) and see if you get the same resutls? And if you do report it upstream and link back here?

(It's a bit hard for me to check since I have about 15 windows open with 15 tabs each But I haven't noticed anything specific on latest chrome stable/beta on Linux with NVidia drivers).

CEOGavin 2015-06-05 03:50:32 UTC #6

Sure will do.

On a different note, I really enjoyed your tutorials on fview-lab2 (esp the one on mountPoint). I had to read it 8 times as I was too distracted

gadicc 2015-06-05 08:34:48 UTC #7

Haha I was wondering if I went too far on that one but feedback has so far been positive Glad you enjoyed it and that the material has been helpful. As you can see the fview-lab isn't really finished yet, but I still have a lot planned for it with a stable release intended for later this year.