Linux 3.2 Ubuntu Kernels - Low-Latency Linux
Some quick testing of the Ubuntu Linux 3.2 kernels as available from the Ubuntu 12.04 LTS Precise repository for a future article on Phoronix.com that quickly looks at whether the OpenGL / gaming performance is affected by the Ubuntu Linux low-latency kernel flavor.


Linux 3.2-generic: 

	Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168B + Intel Centrino Advanced-N 6205

	OS: Ubuntu 12.04, Kernel: 3.2.0-25-generic (x86_64), Desktop: Unity 5.12.0, Display Server: X Server 1.11.3, Display Driver: NVIDIA 295.49, OpenGL: 4.2.0 NVIDIA 295.49, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1920x1080

Linux 3.2-lowlatency: 

	Processor: Intel Core i7-3770K @ 3.50GHz (8 Cores), Motherboard: ECS Z77H2-A2X v1.0, Chipset: Intel Ivy Bridge DRAM, Memory: 16384MB, Disk: 240GB OCZ VERTEX3, Graphics: NVIDIA GeForce GTX 460 768MB (675/1800MHz), Audio: Realtek ALC892, Network: Realtek RTL8111/8168B + Intel Centrino Advanced-N 6205

	OS: Ubuntu 12.04, Kernel: 3.2.0-23-lowlatency (x86_64), Desktop: Unity 5.12.0, Display Server: X Server 1.11.3, Display Driver: NVIDIA 295.49, OpenGL: 4.2.0 NVIDIA 295.49, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1920x1080


Doom 3 1.3.1
Resolution: 1920 x 1080 - Quality: High
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 192.17 |================================================
Linux 3.2-lowlatency . 187.37 |===============================================


Lightsmark 2008
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 423.70 |================================================
Linux 3.2-lowlatency . 362.18 |=========================================


Nexuiz 2.5.2
Resolution: 1920 x 1080 - HDR: Yes - Sound: On
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 162.12 |================================================
Linux 3.2-lowlatency . 160.53 |================================================


OpenArena 0.8.5
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 573.93 |================================================
Linux 3.2-lowlatency . 564.17 |===============================================


OpenArena 0.8.8
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 142.50 |================================================
Linux 3.2-lowlatency . 143.27 |================================================


Unigine Heaven 3.0
Resolution: 1280 x 1024
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 49.02 |=================================================
Linux 3.2-lowlatency . 49.10 |=================================================


Unigine Sanctuary 2.3
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 76.82 |=================================================
Linux 3.2-lowlatency . 77.40 |=================================================


Unigine Tropics 1.3
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 60.79 |=================================================
Linux 3.2-lowlatency . 61.28 |=================================================


Xonotic 0.6
Resolution: 1920 x 1080 - Effects Quality: Low
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 351.05 |================================================
Linux 3.2-lowlatency . 341.37 |===============================================


Xonotic 0.6
Resolution: 1920 x 1080 - Effects Quality: Ultra
Frames Per Second > Higher Is Better
Linux 3.2-generic .... 149.19 |================================================
Linux 3.2-lowlatency . 147.29 |===============================================