Radeon VRAM Optimizations Coming, But Help Is Needed

[jsollie]

I've pushed a stats7 branch, rebased to work with the radeonsi naming changes, and added a 32-bit fix for LFS (2g file limit). Can any SI user test?



How big FPS jumps does it cause for you? A variance within 5% would be well acceptable, but 20% wouldn't.

It highly depends on what I'm doing: uvd decoding is not skipping any frames, opengl games like wolfenstein:et seem to be running fine with it, but modern games, where the gpu is already too weak, downclocking a turion zm-86 to 600 mhz on both cores is killing it . do you have recommendations for testing applications?

[curaga]

Well, any game you like will do; I don't have any ET samples yet, for one.

[Veerappan]

Finally got my 6850 system rebuilt and got the stats7 branch compiled working, and produced a test glxgears bostats file via ssh... When I get home from work tonight, I can start producing stats files from all of the steam games that I installed last night.

[ChrisXY]

Maybe other people find this helpful:

Choose any directory you like for $BUILDDIR and git clone the repository to $BUILDDIR/mesa_stats/ and $BUILDDIR/mesa_stats32/

Then in $BUILDDIR/mesa_stats/ do ./autogen.sh and configure with:

./configure --with-egl-platforms=x11,drm --enable-shared-glapi --with-dri-drivers= --with-gallium-drivers=radeonsi --enable-glx-tls --enable-egl --enable-gallium-egl --enable-gallium-llvm --enable-osmesa --enable-texture-float --enable-gbm --enable-gallium-gbm --with-llvm-shared-libs --enable-openvg --disable-dri3

Of course, change --with-gallium-drivers=radeonsi to --with-gallium-drivers=r600g if applicable. Then simply "make -j8" or so to build

Then, if you have a 64 bit system and 32 bit cross compile libraries etc. installed, go to $BUILDDIR/mesa_stats32/, ./autogen.sh and ./configure with:

CC="gcc -m32" CXX="g++ -m32" PKG_CONFIG_PATH="/usr/lib32/pkgconfig" LLVM_CONFIG=/usr/bin/llvm-config32 ./configure --with-egl-platforms=x11,drm --enable-shared-glapi --with-dri-drivers= --with-gallium-drivers=radeonsi --enable-glx-tls --enable-egl --enable-gallium-egl --enable-gallium-llvm --enable-osmesa --enable-texture-float --enable-gbm --enable-gallium-gbm --with-llvm-shared-libs --enable-openvg --disable-dri3 --libdir=/usr/lib32 --enable-32-bit

Maybe llvm-config32 is different for you, or pkgconfig path, etc., then again build with "make".

Then, choose a specific shell and export:

export LIBGL_DRIVERS_PATH=$BUILDDIR/mesa_stats/lib/gallium:$BUILDDIR/mesa_stats32/lib32/gallium LD_LIBRARY_PATH=$BUILDDIR/mesa_stats32/lib32/egl:$BUILDDIR/mesa_stats32/lib32/gallium:$BUILDDIR/mesa_stats32/lib32:$BUILDDIR/mesa_stats/lib/egl/:$BUILDDIR/mesa_stats/lib/gallium/:$BUILDDIR/mesa_stats/lib/ R600_DEBUG=bostats DRI_PRIME=1 LIBGL_DEBUG=verbose GALLIUM_HUD=fps

(Maybe not DRI_PRIME=1, if you don't have hybrid graphics, LIBGL_DEBUG=verbose is helpful to see if it opens the correct driver, GALLIUM_HUD=fps is just nice to use)

And in that shell you can start your 3d programs and it will use this mesa over the one installed on the system.

[jsollie]

Well, any game you like will do; I don't have any ET samples yet, for one.

Deal,
I'll give it a try next weekend (wolfet and doom3, the vacuum cleaner will help.), i'm currently on a business trip and not in the mood for installing games on a pc I need.
Can contributors read your thesis when you 're done ?

[curaga]

Absolutely, I'll ping Michael with the finished PDF when it's done. But it's all public anyway, you can watch everything happen live:
https://github.com/clbr/hotbos (code)
https://github.com/clbr/jamkthesis (writing)

https://github.com/clbr/mesa

Possibly some other repos later (for the kernel and libdrm parts).

[Veerappan]

Alright, first batch of traces from stuff that I could get to run:
Xonotic - Ultimate (as run by PTS on a 6850):

https://anonfiles.com/file/af2249b3560e01efb8034ae09c6a1bab

And a 7z archive of the rest:

https://anonfiles.com/file/45193bed0744a6fba29e03145fe3c865

Contains: Bastion, TF2, Trine 2, Lugaru HD, Awesomenauts, Smoking Guns, Nexuiz, OpenArena, World of Padman, Tremulous, Urban Terror.

Where possible, I've captured at the monitor's native resolution (1680x1050).

I tried to get HL2, Serious Sam 3, and Dota2 working, but none of those would start on r600g on that machine (2.5GB RAM on a single-core Athlon64). If desired I can probably capture a bit of gameplay in EVE Online via Wine. I haven't tried to get Skyrim/Oblivion/Dragon Age working yet, but I can try if needed.

The capture card was a Radeon HD 6850 1GB and the OS was Ubuntu 13.10 w/ xorg-edgers and then your mesa layered on top... You probably don't need to know this much detail, but I remember how picky my thesis adviser was a few years ago about data sources

I attempted to get XPlane and some workstation apps from PTS going, but some of those seem like the test profiles could use some attention.

[curaga]

Thanks a lot! Yes, EVE would be interesting to have.

[matyas]

Does playing one particular game over and over and providing stats for that add value?

[curaga]

Does playing one particular game over and over and providing stats for that add value?

Yes, if the plays differ (different level, different enemies, etc).