Linux 3.11 kernel does better for Intel Ivy Bridge Ultrabook power consumption. Benchmarks for a future article on Phoronix.com by Michael Larabel.
Processor: Intel Core i3-3217U @ 1.80GHz (4 Cores), Motherboard: ASUS K56CA v1.0, Chipset: Intel 3rd Gen Core DRAM, Memory: 4096MB, Disk: 500GB Hitachi HTS54505 + 24GB SanDisk SSD i100, Graphics: ASUS Intel 3rd Gen Core, Audio: Realtek ALC270, Network: Realtek RTL8111/8168/8411 + Qualcomm Atheros AR9485 Wireless
OS: Ubuntu 13.10, Kernel: 3.9.0-030900-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v
Disk Notes: DEADLINE / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Graphics Notes: SNA
System Notes: Disk Scheduler: DEADLINE. This was running on battery power.
OS: Ubuntu 13.10, Kernel: 3.10.0-031000-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v
Disk Notes: DEADLINE / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA
System Notes: Disk Scheduler: DEADLINE. This was running on battery power.
OS: Ubuntu 13.10, Kernel: 3.11.0-999-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Processor: Intel Core i3-3217U @ 1.80GHz (4 Cores), Motherboard: ASUS K56CA v1.0, Chipset: Intel 3rd Gen Core DRAM, Memory: 4096MB, Disk: 500GB Hitachi HTS54505 + 24GB SanDisk SSD i100, Graphics: ASUS Intel 3rd Gen Core, Audio: Realtek ALC270, Network: Realtek RTL8111/8168/8411 + Qualcomm Atheros AR9485 Wireless
OS: Ubuntu 13.10, Kernel: 3.9.0-030900-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v
Disk Notes: DEADLINE / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Graphics Notes: SNA
System Notes: Disk Scheduler: DEADLINE. This was running on battery power.
Testing initiated at 26 July 2013 14:30 by user phoronix.
Processor: Intel Core i3-3217U @ 1.80GHz (4 Cores), Motherboard: ASUS K56CA v1.0, Chipset: Intel 3rd Gen Core DRAM, Memory: 4096MB, Disk: 500GB Hitachi HTS54505 + 24GB SanDisk SSD i100, Graphics: ASUS Intel 3rd Gen Core, Audio: Realtek ALC270, Network: Realtek RTL8111/8168/8411 + Qualcomm Atheros AR9485 Wireless
OS: Ubuntu 13.10, Kernel: 3.10.0-031000-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v
Disk Notes: DEADLINE / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA
System Notes: Disk Scheduler: DEADLINE. This was running on battery power.
Testing initiated at 25 July 2013 09:20 by user phoronix.
Processor: Intel Core i3-3217U @ 1.80GHz (4 Cores), Motherboard: ASUS K56CA v1.0, Chipset: Intel 3rd Gen Core DRAM, Memory: 4096MB, Disk: 500GB Hitachi HTS54505 + 24GB SanDisk SSD i100, Graphics: ASUS Intel 3rd Gen Core, Audio: Realtek ALC270, Network: Realtek RTL8111/8168/8411 + Qualcomm Atheros AR9485 Wireless
OS: Ubuntu 13.10, Kernel: 3.11.0-999-generic (x86_64), Desktop: Unity 7.0.2, Display Server: X Server 1.14.2, Display Driver: intel 2.21.9, OpenGL: 3.1 Mesa 9.2.0-devel (git-adfd012), Compiler: GCC 4.8 + LLVM 3.3, File-System: ext4, Screen Resolution: 1366x768
Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v
Disk Notes: DEADLINE / data=ordered,errors=remount-ro,relatime,rw
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA
System Notes: Disk Scheduler: DEADLINE. This was running on battery power.
Testing initiated at 25 July 2013 08:42 by user phoronix.