Idle Ryzen
AMD Ryzen 7 1800X Eight-Core testing with a MSI X370 XPOWER GAMING TITANIUM (MS-7A31) v1.0 (1.C0 BIOS) and llvmpipe 16128MB on Ubuntu 18.04 via the Phoronix Test Suite.


Linux 4.15.0: 

	Processor: AMD Ryzen 7 1800X Eight-Core @ 3.60GHz (8 Cores / 16 Threads), Motherboard: MSI X370 XPOWER GAMING TITANIUM (MS-7A31) v1.0 (1.C0 BIOS), Chipset: AMD Family 17h, Memory: 16384MB, Disk: 120GB Force MP500, Graphics: llvmpipe 16128MB, Audio: AMD Device aaf8, Network: Intel I211 Gigabit Connection

	OS: Ubuntu 18.04, Kernel: 4.15.0-041500-generic (x86_64), Desktop: GNOME Shell 3.28.0, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.0-rc5 (LLVM 6.0 128 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768

Linux 4.16: 

	Processor: AMD Ryzen 7 1800X Eight-Core @ 3.60GHz (8 Cores / 16 Threads), Motherboard: MSI X370 XPOWER GAMING TITANIUM (MS-7A31) v1.0 (1.C0 BIOS), Chipset: AMD Family 17h, Memory: 16384MB, Disk: 120GB Force MP500, Graphics: llvmpipe 16128MB, Audio: AMD Device aaf8, Network: Intel I211 Gigabit Connection

	OS: Ubuntu 18.04, Kernel: 4.16.0-041600-generic (x86_64), Desktop: GNOME Shell 3.28.0, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.0-rc5 (LLVM 6.0 128 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768

Linux 4.17 Git: 

	Processor: AMD Ryzen 7 1800X Eight-Core @ 3.60GHz (8 Cores / 16 Threads), Motherboard: MSI X370 XPOWER GAMING TITANIUM (MS-7A31) v1.0 (1.C0 BIOS), Chipset: AMD Family 17h, Memory: 16384MB, Disk: 120GB Force MP500, Graphics: llvmpipe 16128MB, Audio: AMD Device aaf8, Network: Intel I211 Gigabit Connection

	OS: Ubuntu 18.04, Kernel: 4.16.0-999-generic (x86_64) 20180414, Desktop: GNOME Shell 3.28.0, Display Driver: modesetting 1.19.6, OpenGL: 3.3 Mesa 18.0.0-rc5 (LLVM 6.0 128 bits), Compiler: GCC 7.3.0, File-System: ext4, Screen Resolution: 1024x768


Timed Idle
System Power Consumption Monitor
Watts < Lower Is Better
Linux 4.15.0 ... MIN: 147  AVG: 147  MAX: 149 
Linux 4.16 ..... MIN: 147  AVG: 148  MAX: 149 
Linux 4.17 Git . MIN: 148  AVG: 149  MAX: 150