When I don't restart weston, Modello UI will be fine  same as auto start. But 
If I kill weston, and restart it again whatever from systemd service or use 
weston_launcher, Modello UI will be very slow for response based on that.

I am collecting weston log to analyze the performance. But I need to start 
weston manually to get the log. (systemd log will be very slow response or some 
time missed)

The slow response has a big effect on Modello performance if I manually start 
weston and then start modello. I believe I miss something, but I am not sure 
what is missed.
Also from our analysis, the client will cost 1s to send the commit. Generally 
it is only 5ms. It is a big gap.

Any crosswalk or modello UI expert could give me a help to know what missed 
when start modello UI manually?

Thanks

Quanxian
From: Wang, Quanxian
Sent: Thursday, October 16, 2014 1:21 PM
To: Liu, Alice; [email protected]
Cc: Zhang, XiaoyanX
Subject: RE: Anyone knows why Modello UI is very slow response if it is started 
by manually?



From: Liu, Alice
Sent: Thursday, October 16, 2014 1:14 PM
To: Wang, Quanxian; [email protected]<mailto:[email protected]>
Cc: Zhang, XiaoyanX
Subject: RE: Anyone knows why Modello UI is very slow response if it is started 
by manually?


Hi Quanxian,

As I know, ModelleHomescreen is launched by "open_app Modello005.Homescreen" 
after power on.
I am not sure if using this command will be different. You can have a try. :)
[Wang, Quanxian] The same. I have tried that. Thanks

Thanks.
Alice

From: IVI [mailto:[email protected]] On Behalf Of Wang, Quanxian
Sent: Thursday, October 16, 2014 12:18 PM
To: [email protected]<mailto:[email protected]>
Cc: Zhang, XiaoyanX
Subject: Anyone knows why Modello UI is very slow response if it is started by 
manually?

Hi, All

We come across this issue when do modello ui performance testing.  If the 
modello ui is started automatically after power on, modello ui works fine. 
(touch will be fine)

But if we start it step by step manually, it will be very slow.(touch response 
will be 1s latency). Any suggestion?

Steps manually

1)      Power on the machine

2)      Switch to vt (ctrl+alt+f2)

Go to root user and kill weston in next step

3)      killall weston

4)      su - app

go to user app

5)      /usr/bin/weston-launch -- -i0 --current-mode

6)      xwalk-launcher Modello005_HomeScreen

In my understanding, it should work as same as auto start. But the difference 
is auto start will be quick response, manual will be very slow.

I noticed, there is a xwalk.service, is it related with that?

Any comment will be appreciated!

Thanks

Quanxian Wang
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