[SOLVED] Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Hi all,

I have installed Fedora 9 and a custom kernel (2.6.27-rc5) on my Aspire one. I saw recently in a thread that the A One is able to do more than 400 FPS with glxgears under Linpus. On my box, i had only 190 FPS...

It was not really a drawback (I don't use 3D), but it was just ... annoying, because I thought that something was misconfigured in my kernel.

Code:

# dmesg | grep mtrr
[   12.320615] mtrr: no more MTRRs available

# cat /proc/mtrr
reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1
reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1
reg02: base=0x00000000 (   0MB), size=1024MB: write-back, count=1
reg03: base=0x40000000 (1024MB), size= 512MB: write-back, count=1
reg04: base=0x5f800000 (1528MB), size=   8MB: uncachable, count=1
reg05: base=0x5f600000 (1526MB), size=   2MB: uncachable, count=1
reg06: base=0x5f500000 (1525MB), size=   1MB: uncachable, count=1
reg07: base=0x00000000 (   0MB), size= 128KB: uncachable, count=1

# glxgears
943 frames in 5.0 seconds = 188.548 FPS
963 frames in 5.0 seconds = 192.552 FPS
965 frames in 5.0 seconds = 192.673 FPS

I found a dirty workaround (reconfiguring mtrr) :

Code:

# lspci -v 
...
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
...
Memory at 60000000 (32-bit, prefetchable) [size=256M]
...

# cat /etc/rc.d/rc.local
...
echo "disable=7" >/proc/mtrr
echo "disable=6" >/proc/mtrr
echo "disable=5" >/proc/mtrr
echo "disable=4" >/proc/mtrr
echo "base=0x60000000 size=0x10000000 type=write-combining" > /proc/mtrr

# dmesg | grep mtrr
#

# cat /proc/mtrr
reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1
reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1
reg02: base=0x00000000 (   0MB), size=1024MB: write-back, count=1
reg03: base=0x40000000 (1024MB), size= 512MB: write-back, count=1
reg04: base=0x60000000 (1536MB), size= 256MB: write-combining, count=2

# glxgears
2663 frames in 5.0 seconds = 532.479 FPS
2737 frames in 5.0 seconds = 547.330 FPS
2737 frames in 5.0 seconds = 547.251 FPS

But I think that the real solution is in the kernel.

So, can somebody give me the result of "cat /proc/mtrr" on a linpus distro ? (I am also interested by the same command on a Aspire One with 1,5 Go RAM, as I suspect also my memory extension)

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

mine with glxgears


not bad more 1100 fps

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Yes, not bad at all; you probably use INTEL_BATCH variable...

You have a genuine linpus distro ? (with 512 Mo or 1,5 Go RAM ?)

... and can you give me the result of "cat /proc/mtrr" ?

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

hey imarune tu parles français il me semble!

dans le doute...

i dont touch the intel bach variable!

just use the acer linpus with 1.5 gb ram the only thing i made is a yum update mesa-libGL (i'm not sure)

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Désolé, je n'avais pas fait attention à ta signature et à "Location: France"

... Et je ne comprends rien à tes perfs en 3D avec le paramétrage mtrr que tu as :shock: . Les gars de chez Linpus sont vraiment très forts (ou alors ils ont bricolé glxgears :lol: )

Je continue en anglais (même si je ne suis pas très bon), puisqu'on est sur un forum en anglais

Thanks! Please, can you give me the result of :
$ dmesg | grep mtrr
$ /sbin/lsmod | egrep i[8-9][1-3]
$ yum list *mesa*

(I am very surprised : if somebody else can confirm /proc/mtrr with 512 MB RAM !?!)

PS : for INTEL_BATCH, can you give me the result of " echo $INTEL_BATCH" ?

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

(i disable the swap on my AAO) (ça a peut être son importance???)

go (désolé certaines commandes ne m'ont rien renvoyé)

i rewrite "/sbin/lsmod | egrep i[8-9][1-3]" correctly and no more!

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

/proc/mtrr with 512MB -

Code:

reg00: base=0xfffe0000 (4095MB), size= 128KB: write-protect, count=1
reg01: base=0xfffc0000 (4095MB), size= 128KB: uncachable, count=1
reg02: base=0x00000000 (   0MB), size= 256MB: write-back, count=1
reg03: base=0x10000000 ( 256MB), size= 256MB: write-back, count=1
reg04: base=0x1f800000 ( 504MB), size=   8MB: uncachable, count=1
reg05: base=0x1f600000 ( 502MB), size=   2MB: uncachable, count=1
reg06: base=0x1f500000 ( 501MB), size=   1MB: uncachable, count=1
reg07: base=0x00000000 (   0MB), size= 128KB: uncachable, count=1

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

I don't think, but l'll try it.

Merci! (pour le lsmod, le driver que je recherchai (i810|i830|i915) est probablement inclus directement dans le noyau)

Pour mesa, ta version est une 7.0, alors que j'ai une 7.1 : je comprends de moins en moins :?:

Thanks! And I guess that you have "no more MTRRs available" in your dmesg's output, as all the 8 slots are written...

OK, I think I'll have to reinstall Linpus to investigate deeply into the linpus hack (temporarily, of course :lol: )

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

good luck!

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

It's a good idea to install Linpus on USB disk.

Have a plan to install Fedora 9 on my AA1 too. But my self compiled kernel still in progress. Bootsplash, aufs, coretemp, UDMA66 patch applied. I can control the wireless LED using ath5k also. Please wait, I will share it!

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

It's a good idea to install Linpus on USB disk.

Have a plan to install Fedora 9 on my AA1 too. But my self compiled kernel still in progress. Bootsplash, aufs, coretemp, UDMA66 patch applied. I can control the wireless LED using ath5k also. Please wait, I will share it!

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Please refer to this thread:

http://www.aspireoneuser.com/forum/viewtopic.php?f=5&t=4256

to fix your mtrr problems.

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Thanks, but I already fixed my mtrr (see second block in my first post); and there's no noticeable difference with your way (reg04 uncachable -> reg04 write-back).

My question was more about the workaround in Linpus distro for the mtrr's lack; and as I saw when I reinstalled Linpus, they probably found a dirty workaround (enabling early vesafb? hacking i915 kernel driver? hacking Xorg sources?)

I have reinstalled my Fedora 9, and I'll stay with the mtrr tweaking

BTW, INTEL_BATCH does nothing with my xorg/mesa version (intel 2.3.2, server 1.5, mesa 7.1); it's probably disabled in recent releases...

 

Re: Slowish 3D (glxgears 190 FPS) and /proc/mtrr

Which kernel version are you using? FWIW, I wrote to the author of the modules for the JMicron multicard reader asking about an update for more recent kernels. Here's my question and his answer: