Linux Kernel Power Regression
Power tests for Phoronix showing big regression. This is just one of the systems and one of the quick tests for the Friday article.


Linux 2.6.35: 

	Processor: Intel T2400 @ 1.83GHz (2 Cores), Motherboard: LENOVO 2613EJU, Chipset: Intel Mobile 945GM/PM/GMS + ICH7-M, Memory: 1024MB, Disk: 80GB Hitachi HTS541080G9SA00, Graphics: ATI Radeon Mobility X1400 (392/350MHz), Audio: Analog Devices AD1981

	OS: Ubuntu 10.10, Kernel: 2.6.35-22-generic (i686), Desktop: GNOME 2.32.0, Display Server: X Server 1.9.0, Display Driver: radeon 6.13.1, Compiler: GCC 4.4.5, File-System: ext4, Screen Resolution: 1400x1050

Linux 2.6.38: 

	Processor: Intel T2400 @ 1.83GHz (2 Cores), Motherboard: LENOVO 2613EJU, Chipset: Intel Mobile 945GM/PM/GMS + ICH7-M, Memory: 1024MB, Disk: 80GB Hitachi HTS541080G9SA00, Graphics: ATI Radeon Mobility X1400 (392/350MHz), Audio: Analog Devices AD1981

	OS: Ubuntu 10.10, Kernel: 2.6.38-020638-generic (i686), Desktop: GNOME 2.32.0, Display Server: X Server 1.9.0, Display Driver: radeon 6.13.1, Compiler: GCC 4.4.5, File-System: ext4, Screen Resolution: 1400x1050

Linux 2.6.37: 

	Processor: Intel T2400 @ 1.83GHz (2 Cores), Motherboard: LENOVO 2613EJU, Chipset: Intel Mobile 945GM/PM/GMS + ICH7-M, Memory: 1024MB, Disk: 80GB Hitachi HTS541080G9SA00, Graphics: ATI Radeon Mobility X1400 (392/350MHz), Audio: Analog Devices AD1981

	OS: Ubuntu 10.10, Kernel: 2.6.37-020637-generic (i686), Desktop: GNOME 2.32.0, Display Server: X Server 1.9.0, Display Driver: radeon 6.13.1, Compiler: GCC 4.4.5, File-System: ext4, Screen Resolution: 1400x1050

Linux 2.6.36: 

	Processor: Intel T2400 @ 1.83GHz (2 Cores), Motherboard: LENOVO 2613EJU, Chipset: Intel Mobile 945GM/PM/GMS + ICH7-M, Memory: 1024MB, Disk: 80GB Hitachi HTS541080G9SA00, Graphics: ATI Radeon Mobility X1400 (392/350MHz), Audio: Analog Devices AD1981

	OS: Ubuntu 10.10, Kernel: 2.6.36-020636-generic (i686), Desktop: GNOME 2.32.0, Display Server: X Server 1.9.0, Display Driver: radeon 6.13.1, Compiler: GCC 4.4.5, File-System: ext4, Screen Resolution: 1400x1050

Linux 2.6.39 Dev: 

	Processor: Intel T2400 @ 1.83GHz (2 Cores), Motherboard: LENOVO 2613EJU, Chipset: Intel Mobile 945GM/PM/GMS + ICH7-M, Memory: 1024MB, Disk: 80GB Hitachi HTS541080G9SA00, Graphics: ATI Radeon Mobility X1400 (392/350MHz), Audio: Analog Devices AD1981

	OS: Ubuntu 10.10, Kernel: 2.6.39-999-generic (i686), Desktop: GNOME 2.32.0, Display Server: X Server 1.9.0, Display Driver: radeon 6.13.1, Compiler: GCC 4.4.5, File-System: ext4, Screen Resolution: 1400x1050


Timed Idle
SYS Power Monitor
Milliwatts < Lower Is Better
Linux 2.6.35 ..... MIN: 16308  AVG: 17167  MAX: 18290 
Linux 2.6.38 ..... MIN: 20060  AVG: 21076  MAX: 22521 
Linux 2.6.37 ..... MIN: 16105  AVG: 17737  MAX: 19969 
Linux 2.6.36 ..... MIN: 16107  AVG: 17492  MAX: 18620 
Linux 2.6.39 Dev . MIN: 19186  AVG: 20527  MAX: 22003 


OpenArena 0.8.5
Resolution: 1280 x 960
Frames Per Second > Higher Is Better
Linux 2.6.35 ..... 31.93 |====================================================
Linux 2.6.38 ..... 32.80 |=====================================================
Linux 2.6.37 ..... 31.57 |===================================================
Linux 2.6.36 ..... 31.53 |===================================================
Linux 2.6.39 Dev . 32.83 |=====================================================


OpenArena 0.8.5
SYS Power Monitor
Milliwatts < Lower Is Better
Linux 2.6.35 ..... MIN: 19514  AVG: 25116  MAX: 26566 
Linux 2.6.38 ..... MIN: 22130  AVG: 28801  MAX: 30308 
Linux 2.6.37 ..... MIN: 19338  AVG: 25328  MAX: 26854 
Linux 2.6.36 ..... MIN: 18199  AVG: 25290  MAX: 26884 
Linux 2.6.39 Dev . MIN: 24065  AVG: 27876  MAX: 29212 


OpenSSL 1.0.0a
RSA 4096-bit Performance
Signs Per Second > Higher Is Better
Linux 2.6.35 ..... 7.90 |======================================================
Linux 2.6.38 ..... 7.90 |======================================================
Linux 2.6.37 ..... 7.90 |======================================================
Linux 2.6.36 ..... 7.90 |======================================================
Linux 2.6.39 Dev . 7.88 |======================================================


OpenSSL 1.0.0a
SYS Power Monitor
Milliwatts < Lower Is Better
Linux 2.6.35 ..... MIN: 23543  AVG: 27616  MAX: 28745 
Linux 2.6.38 ..... MIN: 25417  AVG: 31286  MAX: 32563 
Linux 2.6.37 ..... MIN: 22463  AVG: 27444  MAX: 28754 
Linux 2.6.36 ..... MIN: 22551  AVG: 27364  MAX: 28543 
Linux 2.6.39 Dev . MIN: 27089  AVG: 30530  MAX: 31742 


SYS Power Monitor
Phoronix Test Suite System Monitoring
Milliwatts
Linux 2.6.35 ..... MIN: 16308  AVG: 24157  MAX: 28745 
Linux 2.6.38 ..... MIN: 20060  AVG: 27869  MAX: 32563 
Linux 2.6.37 ..... MIN: 16081  AVG: 24365  MAX: 28754 
Linux 2.6.36 ..... MIN: 16103  AVG: 24310  MAX: 28543 
Linux 2.6.39 Dev . MIN: 19180  AVG: 27025  MAX: 31742