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#1 2009-09-15 20:20:48

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

ATI 4850 (mobility) horrible performance

I installed tilda and noticet the pulldown animation was extremely slow.
I have a laptop with a 4850 mobility, but this card is actually nearly as fast and basically the same thing as the desktop version, unlike most mobile 'cards'.

I run glxgears: ~400fps... isn't that low?
I run fgl_glxgears: ~100fps... yes, this is really low!

I have the catalyst package installed from AUR, it's 9.8 (couldn't find 9.9!).  I have 'real' transparency and everything else seems to be working fine.

I should say I ran into a LOT of trouble installing the drivers and don't even really know how I ended up doing it.  Same Arch and same driver a couple weeks ago was no problem.

In case it helps,

[andrew@lappy ~]$ fglrxinfo 
display: :0.0  screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: ATI Mobility Radeon HD 4850
OpenGL version string: 2.1.8870

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#2 2009-09-15 21:48:32

Andrwe
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From: Leipzig/Germany
Registered: 2009-06-17
Posts: 322
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Re: ATI 4850 (mobility) horrible performance

Which value is set in your tilda config for dropdown time?

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#3 2009-09-15 22:08:22

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

isnt that just a delay?
but i just tried 0 in addition to the default 15000

EDIT and subsequently just lost my download... great...

but still
the glxgears...

Last edited by andrewzorn (2009-09-15 22:09:25)

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#4 2009-09-15 22:13:15

Andrwe
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From: Leipzig/Germany
Registered: 2009-06-17
Posts: 322
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Re: ATI 4850 (mobility) horrible performance

This value set the time which is needed to full dropdown tilda.

I see, these values are slow imo.
I'm using HD4650 and have  523.780 FPS but I'm using xf86-video-radeonhd-git.
Did you try the radeonhd driver?

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#5 2009-09-15 22:54:31

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

the open source driver is even slower.

i couldnt get it to work intially, but might go to it if installing 9.9 cat doesnt work (downloading now, but it will be a while, so still up for ideas)

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#6 2009-09-15 23:09:53

Nezmer
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Registered: 2008-10-24
Posts: 559
Website

Re: ATI 4850 (mobility) horrible performance

this is probably a bug in catalyst .
I used to run xcompmgr to get transparency in tilda in my old desktop (NVIDIA card) .
I tried to do that with my new laptop(Radeon HD 4570) . But somehow when xcompmgr is running , GPU acceleration is disabled (The fps you see in gears is done by one of the cores of the CPU not from the GPU) .

Compiz fusion can run with no issues though .

long story short : Catalyst is to blame .

Last edited by Nezmer (2009-09-15 23:11:07)


English is not my native language .

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#7 2009-09-15 23:13:06

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

well only 45mins left on 9.9, so if tahts true, ill switch to compiz (even though i really like xcompmgr)

except wait a second if i run
glxinfo | grep direct
i get
direct rendering: Yes

isnt this what i want?  xcompmgr is running now.

Last edited by andrewzorn (2009-09-15 23:14:43)

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#8 2009-09-15 23:42:47

Nezmer
Member
Registered: 2008-10-24
Posts: 559
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Re: ATI 4850 (mobility) horrible performance

1) Kill xcompmgr then run glxgears (look at cpu usage and gears fps) .
2) Run xcompmgr then run glxgears (look at cpu usage and gears fps) .
3) Post the results wink


English is not my native language .

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#9 2009-09-16 00:21:25

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

yeah i was going to try that experiment but i was doing that dl that i already messed up once
installing 9.9 worked but still low fps

kill xcompmgr = 8000fps+.

well it was all for nothing but at least it was something... 9.9...

i thank you very much as disappointed as i am.
compiz is so resource heavy i dont think i can justify it.
but without xcompmgr then i dont really get any benefit from my card...

EDIT hilarious!  cant even use compiz with openbox.  wow.  so its basically looks good and runs slow (so it looks bad) or looks bad and runs fast.  seems obvious but this is like the extreme version.

EDIT wait, does this mean i could use the radeonhd driver and get acceleration and xcompmgr?

Last edited by andrewzorn (2009-09-16 00:35:20)

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#10 2009-09-16 00:43:40

Nezmer
Member
Registered: 2008-10-24
Posts: 559
Website

Re: ATI 4850 (mobility) horrible performance

I'm not using compiz myself . I just wanted to prove that xcompmgr induces the catalyst bug . I run Awesome with tilda floating (transparency turned off for now) .

I place my hopes on the open-source drivers . Having a real bug tracker with RedHat developers actually caring about submitted bugs is a good thing .

The question is , when those drivers will be ready ?
maybe in 6 months .


English is not my native language .

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#11 2009-09-16 00:53:43

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

so you are using xcompmgr but just suffering?  I think i might myself, i didnt install linux for graphics performance, and i feel like drop shadows that i dont notice the slowness look better than this...

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#12 2009-09-16 01:53:05

Nezmer
Member
Registered: 2008-10-24
Posts: 559
Website

Re: ATI 4850 (mobility) horrible performance

andrewzorn wrote:

so you are using xcompmgr but just suffering?  I think i might myself, i didnt install linux for graphics performance, and i feel like drop shadows that i dont notice the slowness look better than this...

No , I'm not using it . Even average video files would freeze .


English is not my native language .

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#13 2009-09-16 02:01:07

Andrwe
Member
From: Leipzig/Germany
Registered: 2009-06-17
Posts: 322
Website

Re: ATI 4850 (mobility) horrible performance

I'm not using something xcmpmgr or compiz, cause I don't like it, but I can play all videos in all qualities by using the radeonhd-git driver also 1080p (FullHD) videos are running smoothly.
And because I had very much trouble with the ati-drivers I recommend the radeonhd-git to everbody also they are from git I don't have any problems with them and I also update them after each new commit.

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#14 2009-09-16 08:21:26

Verve87
Member
Registered: 2009-09-09
Posts: 7

Re: ATI 4850 (mobility) horrible performance

Use ppracer. Glxgears is not a benchmark. http://wiki.cchtml.com/index.php/Glxgea … _Benchmark

Getting excited over glxgear benches is almost as stupid as  those gentoo folk that think makeworld with --fun-roll-loops is a good idea.

edit: or etracer? i cant find ppracer on arch.

etracer has different settings by default, like anti aliasing.

Last edited by Verve87 (2009-09-16 10:55:48)

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#15 2009-09-16 12:07:06

Nezmer
Member
Registered: 2008-10-24
Posts: 559
Website

Re: ATI 4850 (mobility) horrible performance

Verve87 wrote:

Getting excited over glxgear benches is almost as stupid as  those gentoo folk that think makeworld with --fun-roll-loops is a good idea.

It's not a good tool/benchmark to measure accurate performance but It's good to test basic functionality .

If you actually owned an ATI card and ran the test cases I gave , you would think twice before accusing people of getting excited over stupid things .


English is not my native language .

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#16 2009-09-16 13:29:44

andrewzorn
Member
Registered: 2009-08-25
Posts: 23

Re: ATI 4850 (mobility) horrible performance

so could i use radeonhd or the GIT drivers with compositing and/or 3d?

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#17 2009-09-16 14:28:11

Andrwe
Member
From: Leipzig/Germany
Registered: 2009-06-17
Posts: 322
Website

Re: ATI 4850 (mobility) horrible performance

andrewzorn wrote:

so could i use radeonhd or the GIT drivers with compositing and/or 3d?

Compositing should work with radeonhd-git but 3d isn't implemented yet.

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