[Gta04-owner] graphics speed drop in 3.3 and 3.4 kernels
Andreas Kemnade
andreas at kemnade.info
Wed May 30 22:38:47 CEST 2012
Hi,
On Wed, 2012-05-30 at 11:00 +0200, Radek Polak wrote:
> Hi,
> after some time on 3.3 and 3.4 kernel i installed now 3.2 kernel and i was
> quite surprised about the graphics or maybe overall speed difference.
>
> 3.2 kernel is much faster. You can easily check this on debian squeeze:
>
> apt-get install mplayer
> wget http://activationrecord.net/radekp/pub/impossible_is_nothing2.mp4
With 3.2 wget gives 100KByte/s, with 2.6.32 wget gives 200-600KByte/s.
But thats another story...
>
> cat > ~/.mplayer/config << __END__
> vo=fbdev2
> ao=alsa
> [default]
> afm=ffmpeg
> vfm=ffmpeg
> vf=scale=480:640
> sws=0
> __END__
>
> mplayer impossible_is_nothing2.mp4
>
> With 3.2 kernel it plays nice, with 3.3 and 3.4 i get like 1 fps.
>
I get more. Graphics look fluent with 3.4, 3.2 and 2.6.32.
gta04:~# uname -a
Linux gta04 3.4.0-gta04+ #63 PREEMPT Mon May 28 08:42:14 CEST 2012
armv7l GNU/Linux
with the default config except the rootfs.
But what mplayer displays looks a bit crazy. The A:-Number is running
like hell, the V:-Number runs like 1 per second.
A:245075.0 V: 233.4 A-V:244841.578 ct: 23.339 5836/5836 63% 34% 5.2%
5776 0
> So i wonder if i did some mistake or everyone has this problem. Testing
> results and ideas are welcome.
>
I have a GTA04A4 with the DM37xx processor, is the 3.4 only fast with
that one?
Greetings
Andreas Kemnade
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