GZDoom benchmark info needed

[Graf Zahl]

Updated for current test:

I added a CVAR to enable different render methods with buffers to see which one is fastest on different hardware.

Like last time there's the same WADs - the voxel mod has been changed so that the savegame can load.
I need the following tests:

Frozen Time
PAR without lights
PAR with lights
Voxel test map

with both the latests official version or dev build, and this test build. The test build has a new CVAR, called gl_rendermethod. This can have values from 0-3. I need to have this test run with all 4 values.

Last but not least: If your graphics driver reports OpenGL version 4.4, don't bother to run the test. I know it's fine on modern hardware, I just need some info what to optimize in the fallback code for older GPUs.


http://www6.zippyshare.com/v/41974177/file.html

The new test build offers different methods:

- immediate mode (obviously not on MacOSX due to lack of compatibility profile)
- uniform arrays (that's what the last test build had)
- buffer uploads for each draw call
- map/unmap buffer for each draw call

---

I need some info how my recent rewrite to use buffers for rendering the level in GZDoom performs on different hardware.

I have prepared a package (attached to this post) that contains:

- a recent GZDoom build with all buffer based features
- the map 'Frozen Time by Alexander "Eternal" S. which currently is the most demanding map for testing renderer performance.
- a savegame.

What I need:

- Start GZDoom with the map
- bind the 'bench' CCMD to a key
- type 'gl_usevbo 1' in the console
- load the savegame
- press the 'bench' key
- type 'gl_usevbo 0' in the console
- press the 'bench' key
- type 'gl_usevbo 1' in the console
- press the 'bench' key

This will run 3 rounds of benchmarks, one with vertex buffers on, one with vertex buffers off, and for verification again one with vertex buffers on so I can see if switching between buffers and immediate mode rendering somehow affects performance.

Post this info, along with your graphics hardware, CPU and the reported OpenGL version.

Here's the link to the download:


http://www30.zippyshare.com/v/97773065/file.html

I can't attach it to the post for unknown reasons so this will have to do for now.
I'm particularly interested in AMD, Intel and older NVidia cards.

[_mental_]

Intel Core2 Duo CPU U9400 @ 1.40GHz
ATI Mobility Radeon HD 4330, OpenGL 2.1

---

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=26.055, Split = 0.000, Setup=7.318, Clip=12.537
F: Render=28.107, Setup=0.313
S: Render=7.435, Setup=2.016
All=101.996, Render=67.368, Setup=33.376, BSP = 11.189, Portal=0.174, Drawcalls=43.972, Finish=1.030
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
10 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=15.775, Split = 0.000, Setup=6.804, Clip=11.992
F: Render=10.298, Setup=0.249
S: Render=7.166, Setup=1.924
All=71.886, Render=38.747, Setup=31.833, BSP = 10.862, Portal=0.061, Drawcalls=0.000, Finish=1.093
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
14 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=26.540, Split = 0.000, Setup=7.043, Clip=12.343
F: Render=28.371, Setup=0.254
S: Render=7.272, Setup=1.964
All=101.649, Render=67.510, Setup=32.932, BSP = 11.325, Portal=0.156, Drawcalls=44.200, Finish=0.993
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
10 fps

Cannot test with Intel GMA X4500HD on the same machine because of crash after OpenGL initialization, despite reported OpenGL 2.1 Missing extension maybe... But their drivers are crappy, I know.

P.S. glew32.dll is missing from the package, so I took it from the latest build on DRD.

[Hellser]

Intel Core i5 3570k @ 4.20 GHz
nVidia GeForce GTX 660 Ti, OpenGL 4.4, 337.88 Drivers
8GB of RAM
GZDoom ran at 1920x1080, Fullscreen

---

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 122666 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=4.457, Split = 0.000, Setup=2.520, Clip=3.351
F: Render=0.761, Setup=0.094
S: Render=0.177, Setup=0.972
All=20.041, Render=8.325, Setup=10.262, BSP = 3.323, Portal=0.104, Drawcalls=0.444, Finish=1.422
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
47 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 122666 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=6.026, Split = 0.000, Setup=2.547, Clip=3.406
F: Render=2.293, Setup=0.084
S: Render=0.184, Setup=0.968
All=23.187, Render=11.462, Setup=10.293, BSP = 3.286, Portal=0.132, Drawcalls=0.000, Finish=1.400
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
42 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 122666 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=4.466, Split = 0.000, Setup=2.521, Clip=3.377
F: Render=0.782, Setup=0.084
S: Render=0.177, Setup=0.977
All=19.638, Render=8.372, Setup=10.258, BSP = 3.297, Portal=0.090, Drawcalls=0.453, Finish=0.976
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
48 fps

I know it isn't a old system. But I sure did get a slight boost in FPS.

[VGA]

Core 2 duo e8400 @3.3ghz
4gb RAM
Nvidia gtx260 with 337.88 whql drivers
OpenGL version reported is 3.3.0

---

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24238 primitives, 106449 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=19.336, Split = 0.000, Setup=3.295, Clip=6.594
F: Render=4.810, Setup=0.114
S: Render=3.736, Setup=0.935
All=114.647, Render=30.531, Setup=16.463, BSP = 5.523, Portal=0.032, Drawcalls=7.195, Finish=67.535
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
9 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24238 primitives, 106449 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=4.269, Split = 0.000, Setup=3.364, Clip=6.622
F: Render=5.775, Setup=0.115
S: Render=1.331, Setup=0.945
All=30.875, Render=13.978, Setup=16.449, BSP = 5.401, Portal=0.054, Drawcalls=0.000, Finish=0.354
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
32 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24238 primitives, 106449 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=19.252, Split = 0.000, Setup=3.325, Clip=6.708
F: Render=4.960, Setup=0.117
S: Render=3.701, Setup=0.962
All=114.881, Render=30.438, Setup=16.732, BSP = 5.618, Portal=0.029, Drawcalls=7.258, Finish=67.570
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
8 fps

My performance got murdered

[Kappes Buur]

Results are about the same either way, around 25 fps.

AMD Phenom II X6 1055T Processor
8.0 GB RAM
NVIDIA GeForce GTX 460
GL_VERSION: 4.4.0
NVIDIA driver 335.23

---

BENCHMARKS June 14, 2014
FrozenT.wad

AMD Phenom II X6 1055T Processor
8.0 GB RAM
NVIDIA GeForce GTX 460
GL_VERSION: 4.4.0
NVIDIA driver 335.23

gl-usevbo 1
Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=5.246, Split = 0.000, Setup=5.138, Clip=9.371
F: Render=2.222, Setup=0.189
S: Render=0.436, Setup=1.702
All=37.858, Render=11.681, Setup=24.573, BSP = 8.171, Portal=0.109, Drawcalls=1.358, Finish=1.521
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
26 fps

gl-usevbo 0
Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=5.634, Split = 0.000, Setup=5.145, Clip=9.453
F: Render=6.992, Setup=0.207
S: Render=0.437, Setup=1.759
All=43.815, Render=17.094, Setup=24.922, BSP = 8.357, Portal=0.142, Drawcalls=0.000, Finish=1.720
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
23 fps

gl-usevbo 1
Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=6.017, Split = 0.000, Setup=5.112, Clip=9.473
F: Render=2.200, Setup=0.206
S: Render=0.609, Setup=1.774
All=38.991, Render=12.431, Setup=24.810, BSP = 8.244, Portal=0.108, Drawcalls=1.396, Finish=1.655
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
26 fps

[Enjay]

Win 7 Ultimate 64bit
Intel Core i7 920@2.67GHz
12GB RAM
GeForce GTX 285
Driver 335.23
Resolution 1920x1200 (full screen)

---

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 368.9888, angle = 90.3790, pitch = -1.3348
Walls: 14573 (0 splits, 2007 t-splits, 122551 vertices)
Flats: 537 (24512 primitives, 107913 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=10.995, Split = 0.000, Setup=3.934, Clip=5.948
F: Render=8.358, Setup=0.144
S: Render=1.785, Setup=1.283
All=42.216, Render=25.186, Setup=16.663, BSP = 5.352, Portal=0.126, Drawcalls=0.000, Finish=0.282
DLight - Walls: 2119 processed, 405 rendered - Flats: 7224 processed, 650 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
5 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.1438, angle = 90.3790, pitch = -1.3348
Walls: 14573 (0 splits, 2007 t-splits, 122551 vertices)
Flats: 537 (24512 primitives, 107913 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=30.300, Split = 0.000, Setup=3.954, Clip=5.987
F: Render=4.616, Setup=0.145
S: Render=3.837, Setup=1.286
All=141.680, Render=42.939, Setup=16.731, BSP = 5.357, Portal=0.059, Drawcalls=5.747, Finish=81.900
DLight - Walls: 2112 processed, 381 rendered - Flats: 7220 processed, 646 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
14 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0107, angle = 90.3790, pitch = -1.3348
Walls: 14573 (0 splits, 2007 t-splits, 122551 vertices)
Flats: 537 (24512 primitives, 107913 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=29.548, Split = 0.000, Setup=3.968, Clip=6.001
F: Render=4.595, Setup=0.147
S: Render=3.844, Setup=1.297
All=140.103, Render=42.175, Setup=16.789, BSP = 5.374, Portal=0.062, Drawcalls=5.694, Finish=81.025
DLight - Walls: 2111 processed, 380 rendered - Flats: 7207 processed, 655 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
7 fps

Definitely not great figures and setting gl_usevbo to 1 definitely seems to cause quite a hit. I guess my system is falling behind the curve quite a bit these days.

[Graf Zahl]

So far everything as expected. GL 4.x capable NVidia cards are quite a bit better with buffers and older ones take a huge hit. For the curious ones: GL 4 implements a much more efficient method to update buffers and it clearly shows in these numbers.

Now I need some AMD and Intel results.

[ibm5155]

^ roger that....

EDIT: ehm, I got a missing glew32.dll error '-'
EDIT 2: I got an glew32.dll from the gzdoom v1.8.9999

Processor:intel Core I7 3635QM (Quad Core - 2400 - 3400 MHz)
8GB Ram DDR3 1,6GHz
1TB HDD

And here's the score

Using the AMD HD8870m, AMD Catalyst 14.4 beta drivers (04/25/2014, 14.100.0.0000).
opengl (3.3.12874 acording to gzdoom), OpenGL 4.3 support (acording to this)

---

Code: Select all

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=8.382, Split = 0.000, Setup=3.195, Clip=4.241
F: Render=3.940, Setup=0.106
S: Render=3.500, Setup=1.280
All=33.103, Render=19.286, Setup=13.051, BSP = 4.227, Portal=0.037, Drawcalls=9.584, Finish=0.636
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
26 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=6.838, Split = 0.000, Setup=3.300, Clip=4.451
F: Render=4.165, Setup=0.119
S: Render=4.113, Setup=1.294
All=32.773, Render=18.563, Setup=13.374, BSP = 4.209, Portal=0.032, Drawcalls=0.000, Finish=0.709
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
26 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=8.144, Split = 0.000, Setup=3.341, Clip=4.378
F: Render=3.685, Setup=0.119
S: Render=3.515, Setup=1.288
All=33.094, Render=18.807, Setup=13.357, BSP = 4.230, Portal=0.037, Drawcalls=9.513, Finish=0.810
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
27 fps

Using Intel HD4000, driver (10.18.10.3574)
Opengl 3.3.0 (acording to gzdoom), 4.0.0 - Build 10.18.10.3540 (acording to aida and Wikipedia)

---

Code: Select all

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=51.340, Split = 0.000, Setup=3.167, Clip=4.235
F: Render=36.791, Setup=0.103
S: Render=6.516, Setup=1.267
All=111.667, Render=98.386, Setup=12.886, BSP = 4.112, Portal=0.161, Drawcalls=71.747, Finish=0.330
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
8 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=12.332, Split = 0.000, Setup=3.181, Clip=4.278
F: Render=25.483, Setup=0.104
S: Render=3.147, Setup=1.238
All=57.934, Render=44.570, Setup=12.935, BSP = 4.132, Portal=0.214, Drawcalls=0.000, Finish=0.372
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
10 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 36152 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=50.585, Split = 0.000, Setup=3.192, Clip=4.189
F: Render=36.677, Setup=0.104
S: Render=6.585, Setup=1.240
All=110.752, Render=97.597, Setup=12.818, BSP = 4.091, Portal=0.159, Drawcalls=70.917, Finish=0.278
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
15 fps

One interesting thing.
At the titlepic part, on AMD gpu the titlepic image,menus, console are not rendered, but the mouse is, when I start the game I can see the menu and the console :S
And the same problem didn't happened on Intel GPU >.>
Should I start the loadgame and then start the bench or start the first bench and then load the game ?

EDIT: People are making wrong benchmarks, and they should use the same resolution...
Like I did, I used the main resolution when you start gzdoom for the first time (640x480)

EDIT2: when gl_usevbo is 0, the drawcalls from AMD and Intel goes to 0 , and when it's 1 AMD make 9000 draw calls while intel make 70000 draw calls

[Blue Shadow]

OS: Windows 8.1 Update 1
CPU: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
GPU: AMD Radeon HD 7670M
GL Version: 3.3.12420
Resolution: 1366 x 768 (fullscreen) -- this is my max resolution

---

Code: Select all

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=10.178, Split = 0.000, Setup=4.035, Clip=5.080
F: Render=4.219, Setup=0.131
S: Render=3.034, Setup=1.437
All=40.575, Render=21.696, Setup=15.986, BSP = 5.302, Portal=0.037, Drawcalls=8.846, Finish=2.757
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
24 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=7.152, Split = 0.000, Setup=4.005, Clip=5.039
F: Render=5.093, Setup=0.132
S: Render=3.495, Setup=1.431
All=36.844, Render=20.071, Setup=15.882, BSP = 5.273, Portal=0.041, Drawcalls=0.000, Finish=0.746
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
26 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0000, angle = 90.3790, pitch = -1.3348
Walls: 14600 (0 splits, 2007 t-splits, 36964 vertices)
Flats: 537 (24549 primitives, 108130 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=10.121, Split = 0.000, Setup=4.008, Clip=5.039
F: Render=4.135, Setup=0.131
S: Render=3.005, Setup=1.414
All=40.560, Render=21.589, Setup=15.862, BSP = 5.268, Portal=0.037, Drawcalls=8.710, Finish=2.960
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
24 fps

I ran into a couple of issues while running the build, like a black screen on load, with only the cursor being visible and some weirdness with the console.

I suppose the build isn't bug-free?

[BouncyTEM]

OS: Windows 7 Home Premium Service Pack 1
CPU: Intel(R) Core(TM) i7 CPU 950 3.07 GHz OC'd to 3.45 GHz
GPU: NVidia GTX 295 x2 under 334.89 drivers
GL Version: 3.3
Resolution: 1024x768 (windowed)

---

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 368.8585, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 121469 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=17.796, Split = 0.000, Setup=2.986, Clip=4.572
F: Render=4.193, Setup=0.109
S: Render=2.603, Setup=1.033
All=118.741, Render=27.729, Setup=12.757, BSP = 4.057, Portal=0.044, Drawcalls=6.493, Finish=78.173
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
8 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 368.8305, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 121469 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=7.287, Split = 0.000, Setup=2.991, Clip=4.555
F: Render=4.566, Setup=0.109
S: Render=1.222, Setup=1.024
All=29.299, Render=16.143, Setup=12.728, BSP = 4.047, Portal=0.094, Drawcalls=0.000, Finish=0.361
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
33 fps

Map MAP01: "entryway",
x = 4676.2854, y = 5956.6655, z = 369.0890, angle = 90.3790, pitch = -1.3348
Walls: 14243 (0 splits, 2007 t-splits, 121469 vertices)
Flats: 529 (24237 primitives, 106442 vertices)
Sprites: 708, Decals=0, Portals: 1
W: Render=17.968, Split = 0.000, Setup=2.983, Clip=4.583
F: Render=4.295, Setup=0.108
S: Render=2.596, Setup=1.029
All=116.909, Render=28.022, Setup=12.740, BSP = 4.037, Portal=0.044, Drawcalls=6.594, Finish=76.067
DLight - Walls: 0 processed, 0 rendered - Flats: 0 processed, 0 rendered
Missing textures: 0 upper, 0 lower, 0.000 ms
9 fps

WIll nab results from my laptop later today.

[Graf Zahl]

EDIT2: when gl_usevbo is 0, the drawcalls from AMD and Intel goes to 0 , and when it's 1 AMD make 9000 draw calls while intel make 70000 draw calls

Drawcalls doesn't measure the immediate mode code. I just wanted to know how much time the driver needs for the glDrawArrays calls.

It's interesting, though. AMD wastes tons of time on issuing draw calls - on NVidia it's completely irrelevant.

This means for speeding up things, AMD needs entirely different optimizations. What speeds up NVidia doesn't do a thing on AMD and what helps on AMD only increases CPU load on NVidia.


And holy crap - that Intel HD4000 is truly a piece of garbage...

[ibm5155]

Isn't it related to the "16 execution units" and four pixel pipelines?
And why is it a crap? :s like
the NVidia GTX 295 x2 got 9fps with gl_usevbo 0 while the hd4000 got 15

[VGA]

the NVidia GTX 295 x2 got 9fps with gl_usevbo 0 while the hd4000 got 15

No it got 33fps with gl_usevbo 0.

[Graf Zahl]

the NVidia GTX 295 x2 got 9fps with gl_usevbo 0 while the hd4000 got 15

I see 9 fps with buffers and 33 fps without - that's quite a bit faster. The buffer code is not meant to be used on GL 3.x hardware, I just wanted to know how badly they actually fare.
On GL 4 I can use a persistent buffer mapping, allowing me quick'n easy updates. For GL 3.x I have to constantly map and unmap the buffer which is quite the performance killer and this certainly won't make it into production code.

I have to admit, I'm a bit disappointed with AMD's numbers. Since everyone is bragging about reducing driver overhead recently - with AMD even leading to a new API - I would have expected them to actually work on this - but still a third of the entire time is spend issuing draw calls. With NVidia it's barely 2% on GL 4.x hardware.

But I'll be blunt: This optimization will have to wait until I can afford releasing a GL 4.x only version and remove all the backwards compatibility cruft for good. Maybe AMD surprises us with a better driver in the mean time.

[Graf Zahl]

Cannot test with Intel GMA X4500HD on the same machine because of crash after OpenGL initialization, despite reported OpenGL 2.1 Missing extension maybe... But their drivers are crappy, I know.

I suspect it runs into a function meant for newer GL versions that isn't checked for in the code. GLEW isn't particularly helpful finding such occurences and unfortunately I can't test this because I have no idea how I can restrict GLEW to only retrieve functions for specific GL versions and extensions.

I'm afraid but I'm going to need some help here from somebody who can run this in the debugger on such old hardware. You got to checkout the Glew_Version_For_Real branch for that.