Steam for Linux > Limited Beta > Topic Details
Test Dec 1, 2012 @ 12:53am
Issue Report: Serious Sam 3 - Performance drop under linux
I got a major performance drop too i ran under windows with the setting CPU: High, Videocard: High, Memory: High but under ubuntu i ran with the setting CPU: High, Videocard: Medium, Memory: High for keep it playable.
There is a way to get the fps under linux?
Processor Information:
Vendor: AuthenticAMD
Speed: 2900 Mhz
4 logical processors
4 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Unsupported
SSE42: Unsupported

Network Information:
Network Speed:

Operating System Version:
Ubuntu 12.04.1 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 3.2.0-34-generic
X Server vendor: The X.Org Foundation
X Server release: 11103000

Video Card:
Driver: ATI Technologies Inc. ATI Radeon HD 5700 Series

Driver Version: 4.2.11627 Compatibility Profile Context
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 60 Hz
VendorID: 0x1002
DeviceID: 0x68be
Number of Monitors: 2
Number of Logical Video Cards: 1
Primary Display Resolution: 1920 x 1080
Desktop Resolution: 2944 x 1080
Primary Display Size: 18.78" x 10.55" (21.54" diag)
47.7cm x 26.8cm (54.7cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: Realtek ALC892

Memory:
RAM: 7984 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 89043 Mb
Largest Free Hard Disk Block: 75481 Mb

Installed software:

Recent Failure Reports:
Sat Dec 1 05:58:00 2012 GMT: file ''/tmp/dumps/assert_20121201065753_1.dmp'', upload yes: ''CrashID=bp-bb9ff59b-c4b5-48fe-aef6-83fc92121130
''
Sat Dec 1 07:56:27 2012 GMT: file ''/tmp/dumps/crash_20121201085620_2.dmp'', upload yes: ''CrashID=bp-38994fbd-5f6e-4083-b288-1ec9e2121130
''
Sat Dec 1 07:56:30 2012 GMT: file ''/tmp/dumps/assert_20121201085627_1.dmp'', upload yes: ''CrashID=bp-058107b1-0068-4555-8004-91ab42121130
''
Sat Dec 1 07:59:23 2012 GMT: file ''/tmp/dumps/assert_20121201085920_1.dmp'', upload yes: ''CrashID=bp-b1a72b1b-11fa-47be-8d92-0c8d42121130
''
Sat Dec 1 07:59:27 2012 GMT: file ''/tmp/dumps/assert_20121201085924_2.dmp'', upload yes: ''CrashID=bp-a5f6098a-d48f-45dc-8b0d-2e5002121130
''
Showing 1-8 of 8 comments
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blackout24 Dec 1, 2012 @ 1:57am 
AMD drivers on linux are simply no where near as good as on windows. And people say that even the windows drivers aren't that good.

Here is a post regarding gameplay on AMD, Intel and NVIDIA from one of the devs.
http://steamcommunity.com/app/221410/discussions/0/882965239739814065/#c882965239823203669

"- On ATI it is still slower than on Windows. But it is getting there soon I hope."
mikeym Dec 1, 2012 @ 3:15am 
I did some benchmarking and found on my system with a Radeon HD 6950 I got an average of about 42 FPS in Linux and 69 FPS windows directx, however with opengl under windows I only got 44 FPS. It makes me wonder if the ATI cards - or drivers - are optimized for directx. Although it could just be SS3 is more optimized for directx, or my benchmarks are atypical for some reason.
saysilence Dec 1, 2012 @ 3:38am 
if you are using unity there is at least 20% performance drop compared to gnome shell. on radeonhd 5450 i'm getting 50-100 fps on gnome shell compared to 20-30 fps while starting from unity.
blackout24 Dec 1, 2012 @ 4:01am 
And how is 50-100 vs 20-30 a 20% drop?
kigucdoshu Dec 1, 2012 @ 4:15am 
And is that with or without unredirected fullscreen windows enabled?
saysilence Dec 2, 2012 @ 12:56pm 
my bad, wrong math. so on average:

cinnamon 9 fps.
unity 21 fps
gnomeshell 44 fps
xfce 49 fps

so if we take xfce as base (100%) we get
gnome shell 10% drop,
unity 57% drop
cinnamon 81 % drop

but thats just for my PC. i did no fancy tweaking, everything was left on default.
whiskydotjar Dec 2, 2012 @ 1:20pm 
Use openbox, Luke!
DaVince Dec 2, 2012 @ 1:51pm 
But Openbox has a bug where the game loses focus every time you get a Steam Overlay message! Or at least, I do.
Showing 1-8 of 8 comments
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Date Posted: Dec 1, 2012 @ 12:53am
Posts: 8