Intel Sandy Bridge RC6 Again A future article on Phoronix.com by Michael Larabel looking at the latest Intel RC6 support as of 11 February. Difference between test runs is rebooting the kernel with i915.i915_enable_rc6= to values of 0, 1, 3, 5, and 7. RC6 Disabled: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+) (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 12.04, Kernel: 3.3.0-rc2-intelrc6work+ (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: intel 2.17.0, OpenGL: 3.0 Mesa 8.0-rc2, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Standard RC6: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+) (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 12.04, Kernel: 3.3.0-rc2-intelrc6work+ (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: intel 2.17.0, OpenGL: 3.0 Mesa 8.0-rc2, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Deep RC6: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 12.04, Kernel: 3.3.0-rc2-intelrc6work+ (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: intel 2.17.0, OpenGL: 3.0 Mesa 8.0-rc2, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Deepest RC6: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 12.04, Kernel: 3.3.0-rc2-intelrc6work+ (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: intel 2.17.0, OpenGL: 3.0 Mesa 8.0-rc2, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Deep + Deepest RC6: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel Sandybridge Mobile (GT2+), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 12.04, Kernel: 3.3.0-rc2-intelrc6work+ (x86_64), Desktop: Unity 5.2.0, Display Server: X Server 1.11.3, Display Driver: intel 2.17.0, OpenGL: 3.0 Mesa 8.0-rc2, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1600x900 Timed Idle System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 14349 AVG: 15568 MAX: 18006 Standard RC6 ....... MIN: 10861 AVG: 11561 MAX: 13673 Deep RC6 ........... MIN: 10720 AVG: 11606 MAX: 13457 Deepest RC6 ........ MIN: 10817 AVG: 11670 MAX: 38728 Deep + Deepest RC6 . MIN: 10287 AVG: 11076 MAX: 12338 Lightsmark 2008 Resolution: 1600 x 900 Frames Per Second > Higher Is Better RC6 Disabled ....... 31.91 |======================================== Standard RC6 ....... 40.08 |=================================================== Deep RC6 ........... 40.16 |=================================================== Deepest RC6 ........ 40.19 |=================================================== Deep + Deepest RC6 . 38.13 |================================================ Lightsmark 2008 System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 14502 AVG: 26568 MAX: 29192 Standard RC6 ....... MIN: 10861 AVG: 33804 MAX: 37951 Deep RC6 ........... MIN: 10720 AVG: 34094 MAX: 37954 Deepest RC6 ........ MIN: 10817 AVG: 34576 MAX: 38722 Deep + Deepest RC6 . MIN: 17688 AVG: 31909 MAX: 38502 Nexuiz 2.5.2 Resolution: 1440 x 900 - HDR: No - Sound: Off Frames Per Second > Higher Is Better RC6 Disabled ....... 26.78 |========================================= Standard RC6 ....... 32.90 |=================================================== Deep RC6 ........... 32.93 |=================================================== Deepest RC6 ........ 32.83 |=================================================== Deep + Deepest RC6 . 32.83 |=================================================== Nexuiz 2.5.2 System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 17599 AVG: 26035 MAX: 33813 Standard RC6 ....... MIN: 32938 AVG: 34076 MAX: 35615 Deep RC6 ........... MIN: 34674 AVG: 35034 MAX: 35475 Deepest RC6 ........ MIN: 11173 AVG: 31604 MAX: 35056 Deep + Deepest RC6 . MIN: 33572 AVG: 34795 MAX: 35801 VDrift 2010-06-30 Resolution: 1440 x 900 Frames Per Second > Higher Is Better RC6 Disabled ....... 52.61 |============================================== Standard RC6 ....... 57.87 |=================================================== Deep RC6 ........... 57.88 |=================================================== Deepest RC6 ........ 57.76 |=================================================== Deep + Deepest RC6 . 57.75 |=================================================== VDrift 2010-06-30 System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 27319 AVG: 28747 MAX: 30013 Standard RC6 ....... MIN: 21791 AVG: 36896 MAX: 39084 Deep RC6 ........... MIN: 24969 AVG: 37170 MAX: 39212 Deepest RC6 ........ MIN: 27451 AVG: 37117 MAX: 39075 Deep + Deepest RC6 . MIN: 34015 AVG: 36407 MAX: 38011 OpenArena 0.8.5 Resolution: 1440 x 900 Frames Per Second > Higher Is Better RC6 Disabled ....... 87.57 |============================================= Standard RC6 ....... 98.37 |=================================================== Deep RC6 ........... 98.60 |=================================================== Deepest RC6 ........ 97.87 |=================================================== Deep + Deepest RC6 . 98.67 |=================================================== OpenArena 0.8.5 System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 18600 AVG: 28706 MAX: 31742 Standard RC6 ....... MIN: 30066 AVG: 37246 MAX: 40844 Deep RC6 ........... MIN: 28947 AVG: 35174 MAX: 41349 Deepest RC6 ........ MIN: 34458 AVG: 38902 MAX: 39544 Deep + Deepest RC6 . MIN: 36876 AVG: 38968 MAX: 39648 World of Padman 1.2 Resolution: 1440 x 900 Frames Per Second > Higher Is Better RC6 Disabled ....... 80.97 |============================================= Standard RC6 ....... 90.90 |=================================================== Deep RC6 ........... 90.60 |=================================================== Deepest RC6 ........ 90.23 |=================================================== Deep + Deepest RC6 . 90.20 |=================================================== World of Padman 1.2 System Power Consumption Monitor Milliwatts < Lower Is Better RC6 Disabled ....... MIN: 18860 AVG: 29471 MAX: 30971 Standard RC6 ....... MIN: 31738 AVG: 39521 MAX: 41407 Deep RC6 ........... MIN: 31297 AVG: 39447 MAX: 42378 Deepest RC6 ........ MIN: 29787 AVG: 38870 MAX: 42481 Deep + Deepest RC6 . MIN: 31237 AVG: 38577 MAX: 41791 System Power Consumption Monitor Phoronix Test Suite System Monitoring Milliwatts RC6 Disabled ....... MIN: 14349 AVG: 26901 MAX: 33813 Standard RC6 ....... MIN: 10861 AVG: 34174 MAX: 41407 Deep RC6 ........... MIN: 10720 AVG: 34246 MAX: 42378 Deepest RC6 ........ MIN: 10817 AVG: 34227 MAX: 42481 Deep + Deepest RC6 . MIN: 10287 AVG: 33162 MAX: 41791