jogl 1.1.1 poor performance

[Ken Russell]

Hmm, I just had a bad thought. Unlike LWJGL, JOGL links against libGL.so rather than dlopen'ing it at run time. I'm aware that the JDK dlopens libraries like libjogl.so with RTLD_LOCAL rather than RTLD_GLOBAL specified, and I'll bet that due to transivity this means that libGL.so.1.2 only has local symbol visibility with JOGL. Knowing that the DRI drivers require libGL.so.1.2 to have RTLD_GLOBAL visibility, I'm guessing this is the fundamental difference between the two configurations. The output from your run with LIBGL_DEBUG set should be enough to confirm this.

[Ken Russell]

Actually, before you go to all of that effort, could you try a new JOGL build?
http://download.java.net/media/jogl/builds/tmp/jogl-linux-drihack.tar.gz

As far as I understand it, that build should fix the problem. Please let me know whether it does. If so, we have some work to do on the JOGL side to be able to implement this cleanly.

[drslinky1500]

Well, heres the output before the new build. I will post the new immediately after

JOGL OUTPUT:

libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/radeon_dri.so
libGL error: dlopen /usr/lib/dri/radeon_dri.so failed (/usr/lib/dri/radeon_dri.so: undefined symbol: _glapi_Dispatch)
libGL error: unable to find driver: radeon_dri.so
!!! GLX server vendor : SGI
!!! GLX server version: 1.2
!!! GLX client vendor : SGI
!!! GLX client version: 1.4
!!! glXChooseVisual recommended visual id 0x27
!!! Fetched XVisualInfo for visual ID 0x27
!!! Resulting XVisualInfo: visualid = 0x27
libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/radeon_dri.so
libGL error: dlopen /usr/lib/dri/radeon_dri.so failed (/usr/lib/dri/radeon_dri.so: undefined symbol: _glapi_Dispatch)
libGL error: unable to find driver: radeon_dri.so
JOGLTest3: GL_VENDOR: Mesa project: www.mesa3d.org
JOGLTest3: GL_RENDERER: Mesa GLX Indirect
JOGLTest3: GL_VERSION: 1.2 (1.5 Mesa 6.2.1)


LWJGL OUTPUT:

libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/radeon_dri.so
drmOpenByBusid: Searching for BusID pci:0000:01:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:01:05.0
libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
drmOpenByBusid: Searching for BusID pci:0000:01:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 7, (OK)
drmOpenByBusid: drmOpenMinor returns 7
drmOpenByBusid: drmGetBusid reports pci:0000:01:05.0
libGL error:
Can't open configuration file /etc/drirc: No such file or directory.
libGL error:
Can't open configuration file /home/project/.drirc: No such file or directory.
LWJGLTest3: GL_VENDOR: Tungsten Graphics, Inc.
LWJGLTest3: GL_RENDERER: Mesa DRI Radeon 20050528 AGP 4x x86/MMX+/3DNow!+/SSE NO-TCL
LWJGLTest3: GL_VERSION: 1.2 Mesa 6.3.2

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[drslinky1500]

It seems to have worked. This is great. It has also brought the performance of my code up to par.

JOGL Output:

libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
libGL: OpenDriver: trying /usr/lib/dri/radeon_dri.so
drmOpenByBusid: Searching for BusID pci:0000:01:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 8, (OK)
drmOpenByBusid: drmOpenMinor returns 8
drmOpenByBusid: drmGetBusid reports pci:0000:01:05.0
libGL: XF86DRIGetClientDriverName: 4.0.1 radeon (screen 0)
drmOpenByBusid: Searching for BusID pci:0000:01:05.0
drmOpenDevice: node name is /dev/dri/card0
drmOpenDevice: open result is 9, (OK)
drmOpenByBusid: drmOpenMinor returns 9
drmOpenByBusid: drmGetBusid reports pci:0000:01:05.0
libGL error:
Can't open configuration file /etc/drirc: No such file or directory.
libGL error:
Can't open configuration file /home/project/.drirc: No such file or directory.
JOGLTest3: GL_VENDOR: Tungsten Graphics, Inc.
JOGLTest3: GL_RENDERER: Mesa DRI Radeon 20050528 AGP 4x x86/MMX+/3DNow!+/SSE NO-TCL
JOGLTest3: GL_VERSION: 1.2 Mesa 6.3.2



I am about to post another error I have been having in both operating systems. It has to do with glReadPixels. I will put this in a new thread. This hack has not fixed this one issue. Everything else seems to be working great!

Greg

[Ken Russell]

Great. Thanks for patiently running all of these test cases. I'll get this fix into the JOGL tree as soon as possible.