linux-kernel-power-haswell-ult
A Kernel comparison via the Phoronix Test Suite.


Linux 3.15: 

	Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Device 0a2e (1200MHz), Audio: Intel Haswell-ULT HD Audio, Network: Intel Wireless 7260

	OS: Ubuntu 14.04, Kernel: 3.15.0-031500-generic (x86_64), Desktop: Unity 7.2.2, Display Server: X Server 1.15.1, Display Driver: intel 2.99.914, OpenGL: 3.3 Mesa 10.3.0-devel (git-e9a4e74 2014-08-18 trusty-oibaf-ppa+gallium-nine), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2560x1440

Linux 3.16.1: 

	Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Device 0a2e (1200MHz), Audio: Intel Haswell-ULT HD Audio, Network: Intel Wireless 7260

	OS: Ubuntu 14.04, Kernel: 3.16.1-031601-generic (x86_64), Desktop: Unity 7.2.2, Display Server: X Server 1.15.1, Display Driver: intel 2.99.914, OpenGL: 3.3 Mesa 10.3.0-devel (git-e9a4e74 2014-08-18 trusty-oibaf-ppa+gallium-nine), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2560x1440

Linux 3.16.1 + FBC: 

	Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Device 0a2e (1200MHz), Audio: Intel Haswell-ULT HD Audio, Network: Intel Wireless 7260

	OS: Ubuntu 14.04, Kernel: 3.16.1-031601-generic (x86_64), Desktop: Unity 7.2.2, Display Server: X Server 1.15.1, Display Driver: intel 2.99.914, OpenGL: 3.3 Mesa 10.3.0-devel (git-e9a4e74 2014-08-18 trusty-oibaf-ppa+gallium-nine), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 2560x1440


Tesseract 2014-05-12
Resolution: 1920 x 1080
Frames Per Second > Higher Is Better
Linux 3.15 ......... 45.12 |===================================================
Linux 3.16.1 ....... 44.14 |==================================================
Linux 3.16.1 + FBC . 43.33 |=================================================


Tesseract 2014-05-12
System Power Consumption Monitor
Milliwatts < Lower Is Better
Linux 3.15 ......... MIN: 8702   AVG: 35180  MAX: 44710 
Linux 3.16.1 ....... MIN: 10289  AVG: 37019  MAX: 46608 
Linux 3.16.1 + FBC . MIN: 10178  AVG: 36311  MAX: 47585 


LAME MP3 Encoding 3.99.3
WAV To MP3
Seconds < Lower Is Better
Linux 3.15 ......... 14.45 |===================================================
Linux 3.16.1 ....... 14.46 |===================================================
Linux 3.16.1 + FBC . 14.44 |===================================================


LAME MP3 Encoding 3.99.3
System Power Consumption Monitor
Milliwatts < Lower Is Better
Linux 3.15 ......... MIN: 8424  AVG: 16779  MAX: 22211 
Linux 3.16.1 ....... MIN: 8413  AVG: 17991  MAX: 21889 
Linux 3.16.1 + FBC . MIN: 8580  AVG: 17806  MAX: 22333 


Timed Idle
System Power Consumption Monitor
Milliwatts < Lower Is Better
Linux 3.15 ......... MIN: 8136  AVG: 9117   MAX: 12254 
Linux 3.16.1 ....... MIN: 8180  AVG: 8238   MAX: 8702 
Linux 3.16.1 + FBC . MIN: 8269  AVG: 8395   MAX: 12964 


System Power Consumption Monitor
Phoronix Test Suite System Monitoring
Milliwatts
Linux 3.15 ......... MIN: 8136  AVG: 17562  MAX: 44710 
Linux 3.16.1 ....... MIN: 8180  AVG: 17966  MAX: 46608 
Linux 3.16.1 + FBC . MIN: 8269  AVG: 17886  MAX: 47585