[meta-intel] CrownBay EMGD Performance for 1.4.2 in Rotation

[Chad Bishop]

> -----Original Message-----
> From: Kamble, Nitin A [mailto:nitin.a.kamble at intel.com]
> Sent: Wednesday, January 22, 2014 4:27 PM
> To: Chad Bishop; meta-intel at yoctoproject.org; Seow, Chen Yong
> Subject: Re: [meta-intel] CrownBay EMGD Performance for 1.4.2 in Rotation
> 
> On 1/22/2014 9:22 AM, Chad Bishop wrote:
> > Hello meta-intel Team,
> >
> > I am writing to inquire about any known performance deficiencies when
> running with EMGD configured to rotate 90 degrees into portrait mode.
> >
> > We have been (still) unable to rotate dynamically with xrandr and are thus
> configuring this statically at boot time with the xorg.conf.
> Hi Chad,
>     It is interesting to see this data. On the last thread we talked about trying
> with xrandr 1.2. How did that experiment go?

[Chad] 
I will try to conclude this experiment tomorrow.

> 
> > With a non-compositing window manager we see the following average
> frame rates at 1024x768 :
> >
> > Yocto - Landscape : 31.35
> > Yocto - Portrait : 16.35

[Chad] 
This was incorrect.  We had a cap in place on landscape. With the cap removed, we see :

Yocto - Landscape : 58.4 fps
Yocto - Portrait : 16.35 fps

Also, for each configuration top reports  xorg using :

Yocto - Landscape : < 5%
Yocto - Portrait : > 20%

> >
> > I hate to draw comparisons, but our application (Qt 4.8.5 based) running in
> WES7 on the same hardware (Kontron COMe-mTT10) sees the following FPS
> impacts :
> >
> > Windows - Landscape : 20.5
> > Windows - Portrait : 20.4
> And what graphics driver are you using here?

[Chad] 
EMGD v1.18

> 
> >
> > While this isn't blazing, it is steady and acceptable to the user.
> >
> > It is a rather simple OpenGL scene.  We are using OpenGL and not OpenGL
> ES at the moment.
> >
> > Thank you for your consideration of this question.
> I would like to see a resolution to this issue. I am currently swamped with
> more important tasks here, it may take a while for me to get onto this issue.  If
> you could get some information for the rotation and frame-rate data with the
> xrandr 1.2 that would speed things up.

[Chad] 
Understood.  I'll try wrap this up tomorrow.

> 
> Thanks,
> Nitin
> 
> >
> > Best Regards,
> > Chad Bishop
> > Raven Industries
> >
> 
> >
> >
> >
> >
> >
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