[Linux] Slow FPS on AMD FX-8150 / R9 280X

[tewald]

I think the title is self-explanatory. :-)
On linux I barely hit 25 FPS in the 30 second benchmark.
On Windows I get 69 average, hitting 119 max.
Same settings (all Ultra)

As a linux fan, I prefer to avoid a reboot just to change OS to play ;-)
Any tips?

Ubuntu 15.04
16GB RAM
FX-8150
Gigabyte R9 280X fglrx driver

[AlenL]

How much do you get in Windows on OpenGL?

[tewald]

I don't know. I'll try it later and post here the results.
PS: I'm loving this game. It's very hard sometimes, but really beautiful.

[tewald]

Ok...

I've made three runs.
All using the same exact graphics settings, except the renderer, of course.
No other software running except Steam and Talos.

Windows 8.1 DX11

21:33:13 INF: - benchmark results -
21:33:13 INF:
21:33:13 INF: Duration: 60.0 seconds (3974 frames)
21:33:13 INF: Average: 66.3 FPS (67.1 w/o extremes)
21:33:13 INF: Extremes: 120.2 max, 29.1 min
21:33:13 INF: Sections: AI=11%, physics=2%, sound=2%, scene=50%, shadows=29%, misc=6%
21:33:13 INF: Highs: 681 in 7.5 seconds (91.0 FPS)
21:33:13 INF: Lows: 680 in 13.5 seconds (50.3 FPS)
21:33:13 INF: 30-60 FPS: 32%
21:33:13 INF: > 60 FPS: 68%

Windows 8.1 OpenGL

21:30:11 INF: - benchmark results -
21:30:11 INF:
21:30:11 INF: Duration: 57.3 seconds (2166 frames)
21:30:11 INF: Average: 37.8 FPS (40.7 w/o extremes)
21:30:11 INF: Extremes: 83.3 max, 3.1 min
21:30:11 INF: Sections: AI=7%, physics=1%, sound=2%, scene=62%, shadows=25%, misc=3%
21:30:11 INF: Lows: 100 in 6.5 seconds (15.3 FPS)
21:30:11 INF: < 20 FPS: 2%
21:30:11 INF: 20-30 FPS: 17%
21:30:11 INF: 30-60 FPS: 68%
21:30:11 INF: > 60 FPS: 13%

Ubuntu 15.04 OpenGL

21:38:54 INF: - benchmark results -
21:38:54 INF:
21:38:54 INF: Duration: 59.7 seconds (1593 frames)
21:38:54 INF: Average: 26.7 FPS (30.5 w/o extremes)
21:38:54 INF: Extremes: 76.5 max, 1.1 min
21:38:54 INF: Sections: AI=5%, physics=1%, sound=4%, scene=64%, shadows=21%, misc=6%
21:38:54 INF: Lows: 38 in 8.7 seconds (4.4 FPS)
21:38:54 INF: < 20 FPS: 6%
21:38:54 INF: 20-30 FPS: 57%
21:38:54 INF: 30-60 FPS: 32%
21:38:54 INF: > 60 FPS: 4%

So... is OpenGL the one to blame here?
What annoys me most are the stutters in Linux.
This causes the FPS to vary a lot, ruining the experience.

[kamikaze070384]

Hi!
I have similar problem http://steamcommunity.com/app/257510/discussions/0/537402115071364436/
Maybe ATI drivers are a source of problem?

[tewald]

On a thread about problems on Mac ( http://steamcommunity.com/app/257510/discussions/0/530646080857903152/ ), AlenL comments that OpenGL shaders are sub-optimally compiled.
Even in Windows DX11 is much faster than OpenGL.
Don't know if there's anything that we can do, except lowering the graphics settings. :-(

[kamikaze070384]

So if OpenGL shaders are sub-optimally compiled then how is this possible that not everyone have problem witch Talos on Linux?

[tewald]

Not everyone has the time or the will to post here. Most of them just boot Windows up and go on playing.
Could be ATI driver problems, who knows?

[kwahoo]

I would try cuting edge opens ource driver, eg. the Oibaf one. In some cases fglrx is buggy and much slower - the open source driver performance is more consistent.
https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers

[tewald]

@kwahoo
Got the oibaf drivers up and running, but with no performance increase, sadly.

21:25:04 INF: - benchmark results -
21:25:04 INF:
21:25:04 INF: Duration: 55.5 seconds (811 frames)
21:25:04 INF: Average: 14.6 FPS (15.8 w/o extremes)
21:25:04 INF: Extremes: 31.6 max, 1.2 min
21:25:04 INF: Sections: AI=2%, physics=1%, sound=3%, scene=49%, shadows=42%, misc=3%
21:25:04 INF: Lows: 33 in 6.4 seconds (5.2 FPS)
21:25:04 INF: < 20 FPS: 82%
21:25:04 INF: 20-30 FPS: 17%

I have a Core I7, 16GB RAM, NVidia 850M notebook here, and will make some tests to see if with Nvidia the same difference in performance happens too.

[kwahoo]

Wow, these numbers shouldn't be such bad. Have you read Troubleshooting page about firmware problems? http://steamcommunity.com/sharedfiles/filedetails/?id=356983568

[tewald]

I've read the troubleshooting page, and my motherboard BIOS is up to date.
I think is something with ATI drivers, because I've tested the game in my notebook:

Core i7 4710MQ
16GB RAM
NVIDIA GeForce GTX 850M

DX11 performance is better, but OpenGL is not much slower.
And I've got the same FPS on Ubuntu and Windows with OpenGL.

Gaming with AMD can be painful sometimes. :-)

[Bob3]

Like I said in the other topic, AMD drivers on Linux are just not there yet. :( Maybe someday.

[-McB-]

Try the new 15.7 fglrx driver released yesterday, on my old radeon HD6950 every game run smoother and i have almost 15 fps more then before

[tewald]

-McB-님이 먼저 게시:

Try the new 15.7 fglrx driver released yesterday, on my old radeon HD6950 every game run smoother and i have almost 15 fps more then before

With 15.7 driver, downloaded and built from AMD site:

22:53:31 INF: - benchmark results -
22:53:31 INF:
22:53:31 INF: Duration: 58.6 seconds (2121 frames)
22:53:31 INF: Average: 36.2 FPS (41.6 w/o extremes)
22:53:31 INF: Extremes: 91.7 max, 1.8 min
22:53:31 INF: Sections: AI=5%, physics=1%, sound=3%, scene=63%, shadows=25%, misc=4%
22:53:31 INF: Lows: 57 in 9.0 seconds (6.3 FPS)
22:53:31 INF: < 20 FPS: 3%
22:53:31 INF: 20-30 FPS: 12%
22:53:31 INF: 30-60 FPS: 68%
22:53:31 INF: > 60 FPS: 17%

~10 FPS increase!
Now it's on par with AMD's Windows OpenGL driver implementation.
Or not... I'll have to test in Windows with 15.7 and OpenGL to confirm.

[-McB-]

Even better as nothing. Sadly dx11 are far away on performance. Hope vulcan will change this