Intel CPU Broadwell Core i7 Ultrabook Scaling

ACPI CPUFreq vs. Intel P-State CPU frequency scaling drivers on Ubuntu 15.04. Tests by Michael Larabel for a future article on Phoronix.com.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1501259-DE-INTELCPUB60
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P-State Powersave
January 25 2015
 
P-State Performance
January 25 2015
 
CPUFreq Performance
January 25 2015
 
CPUFreq Ondemand
January 25 2015
 
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P-State Powersave

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA

P-State Performance

Processor: Intel Core i7-5600U @ 3.20GHz (4 Cores), Motherboard: LENOVO 20BSCTO1WW, Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 128GB SAMSUNG MZNTE128, Graphics: Intel Broadwell-U (950MHz), Audio: Intel Broadwell-U Audio, Network: Intel Connection + Intel Wireless 7265

OS: Ubuntu 15.04, Kernel: 3.18.0-9-generic (x86_64), Desktop: Unity 7.3.1, Display Server: X Server 1.16.2.901 (1.16.3 RC 1), Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 10.3.2, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 1920x1080

CPUFreq Performance

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Graphics Notes: SNA

CPUFreq Ondemand

Changed Processor to Intel Core i7-5600U @ 2.60GHz (4 Cores).

Intel CPU Broadwell Core i7 Ultrabook ScalingOpenBenchmarking.orgPhoronix Test SuiteIntel Core i7-5600U @ 3.20GHz (4 Cores)Intel Core i7-5600U @ 2.60GHz (4 Cores)LENOVO 20BSCTO1WWIntel Broadwell-U-OPI8192MB128GB SAMSUNG MZNTE128Intel Broadwell-U (950MHz)Intel Broadwell-U AudioIntel Connection + Intel Wireless 7265Ubuntu 15.043.18.0-9-generic (x86_64)Unity 7.3.1X Server 1.16.2.901 (1.16.3 RC 1)intel 2.99.9173.3 Mesa 10.3.2GCC 4.9.2ext41920x1080ProcessorsMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionIntel CPU Broadwell Core I7 Ultrabook Scaling BenchmarksSystem Logs- --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v - P-State Powersave: Scaling Governor: intel_pstate powersave- P-State Performance: Scaling Governor: intel_pstate powersave- CPUFreq Performance: Scaling Governor: acpi-cpufreq ondemand- CPUFreq Ondemand: Scaling Governor: acpi-cpufreq ondemand- SNA

P-State PowersaveP-State PerformanceCPUFreq PerformanceCPUFreq OndemandResult OverviewPhoronix Test Suite100%102%104%107%109%FFmpegXonoticTimed Linux Kernel CompilationFFTWXonoticx264OpenArenaFFTWLAME MP3 EncodingH.2.H.T.N.D1920 x 1080 - LowTime To CompileStock - 2D FFT Size 321920 x 1080 - UltraH.2.V.E1920 x 1080Stock - 2D FFT Size 2048WAV To MP3

Intel CPU Broadwell Core i7 Ultrabook Scalingffmpeg: H.264 HD To NTSC DVfftw: Stock - 2D FFT Size 32fftw: Stock - 2D FFT Size 2048encode-mp3: WAV To MP3openarena: 1920 x 1080build-linux-kernel: Time To Compilex264: H.264 Video Encodingxonotic: 1920 x 1080 - Lowxonotic: 1920 x 1080 - UltraP-State PowersaveP-State PerformanceCPUFreq PerformanceCPUFreq Ondemand18.286756.123895.6812.8937.27283.5673.57166.8655.7018.266780.003911.0812.8737.37281.8473.42165.4955.6119.776732.963911.9612.8737.17280.2173.11167.6655.9619.846739.223888.8412.8237.40282.7573.19166.6455.90OpenBenchmarking.org

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 2.1.1H.264 HD To NTSC DVP-State PerformanceP-State PowersaveCPUFreq PerformanceCPUFreq Ondemand510152025SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.07, N = 3SE +/- 0.01, N = 318.2618.2819.7719.841. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lXv -lX11 -lXext -lasound -lSDL -lm -pthread -std=c99 -fomit-frame-pointer -O3 -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -MMD -MF -MT

FFTW

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.4Build: Stock - Size: 2D FFT Size 32P-State PerformanceP-State PowersaveCPUFreq OndemandCPUFreq Performance15003000450060007500SE +/- 7.79, N = 5SE +/- 36.03, N = 5SE +/- 28.94, N = 5SE +/- 23.82, N = 56780.006756.126739.226732.961. (CC) gcc options: -std=gnu99 -O3 -fomit-frame-pointer -mtune=native -malign-double -fstrict-aliasing -fno-schedule-insns -ffast-math -lm

OpenBenchmarking.orgMflops, More Is BetterFFTW 3.3.4Build: Stock - Size: 2D FFT Size 2048CPUFreq PerformanceP-State PerformanceP-State PowersaveCPUFreq Ondemand8001600240032004000SE +/- 9.01, N = 5SE +/- 8.09, N = 5SE +/- 17.79, N = 5SE +/- 7.38, N = 53911.963911.083895.683888.841. (CC) gcc options: -std=gnu99 -O3 -fomit-frame-pointer -mtune=native -malign-double -fstrict-aliasing -fno-schedule-insns -ffast-math -lm

LAME MP3 Encoding

LAME is an MP3 encoder licensed under the LGPL. This test measures the time required to encode a WAV file to MP3 format. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3CPUFreq OndemandP-State PerformanceCPUFreq PerformanceP-State Powersave3691215SE +/- 0.02, N = 5SE +/- 0.02, N = 5SE +/- 0.05, N = 5SE +/- 0.04, N = 512.8212.8712.8712.891. (CC) gcc options: -O3 -fomit-frame-pointer -ffast-math -pipe -lm

OpenArena

OpenBenchmarking.orgFrames Per Second, More Is BetterOpenArena 0.8.8Resolution: 1920 x 1080CPUFreq OndemandP-State PerformanceP-State PowersaveCPUFreq Performance918273645SE +/- 0.06, N = 3SE +/- 0.12, N = 3SE +/- 0.09, N = 3SE +/- 0.09, N = 337.4037.3737.2737.17MIN: 4 / MAX: 63MIN: 4 / MAX: 59MIN: 4 / MAX: 59MIN: 4 / MAX: 74

OpenBenchmarking.orgMilliseconds, Fewer Is BetterOpenArena 0.8.8Resolution: 1920 x 1080 - Total Frame TimeP-State PerformanceCPUFreq OndemandCPUFreq PerformanceP-State Powersave1224364860Min: 4 / Avg: 26.55 / Max: 57Min: 4 / Avg: 26.63 / Max: 58Min: 4 / Avg: 26.72 / Max: 58Min: 4 / Avg: 26.87 / Max: 59

Timed Linux Kernel Compilation

This test times how long it takes to build the Linux 3.18 kernel. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 3.18-rc6Time To CompileCPUFreq PerformanceP-State PerformanceCPUFreq OndemandP-State Powersave60120180240300SE +/- 0.36, N = 3SE +/- 0.41, N = 3SE +/- 0.93, N = 3SE +/- 0.34, N = 3280.21281.84282.75283.56

x264

This is a simple test of the x264 H.264/AVC encoder run on the CPU (OpenCL support disabled). Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2014-08-30H.264 Video EncodingP-State PowersaveP-State PerformanceCPUFreq OndemandCPUFreq Performance1632486480SE +/- 0.07, N = 5SE +/- 0.22, N = 5SE +/- 0.18, N = 5SE +/- 0.20, N = 573.5773.4273.1973.111. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize

Xonotic

This is a benchmark of Xonotic, which is a fork of the DarkPlaces-based Nexuiz game. Development began in March of 2010 on the Xonotic game. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is BetterXonotic 0.8Resolution: 1920 x 1080 - Effects Quality: LowCPUFreq PerformanceP-State PowersaveCPUFreq OndemandP-State Performance4080120160200SE +/- 0.12, N = 3SE +/- 0.22, N = 3SE +/- 0.59, N = 3SE +/- 0.86, N = 3167.66166.86166.64165.49MIN: 94 / MAX: 269MIN: 92 / MAX: 268MIN: 93 / MAX: 269MIN: 109 / MAX: 266

OpenBenchmarking.orgFrames Per Second, More Is BetterXonotic 0.8Resolution: 1920 x 1080 - Effects Quality: UltraCPUFreq PerformanceCPUFreq OndemandP-State PowersaveP-State Performance1326395265SE +/- 0.04, N = 3SE +/- 0.01, N = 3SE +/- 0.06, N = 3SE +/- 0.12, N = 355.9655.9055.7055.61MIN: 25 / MAX: 84MIN: 25 / MAX: 84MIN: 25 / MAX: 83MIN: 24 / MAX: 83

P-State Powersave

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA

Testing initiated at 25 January 2015 14:13 by user phoronix.

P-State Performance

Processor: Intel Core i7-5600U @ 3.20GHz (4 Cores), Motherboard: LENOVO 20BSCTO1WW, Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 128GB SAMSUNG MZNTE128, Graphics: Intel Broadwell-U (950MHz), Audio: Intel Broadwell-U Audio, Network: Intel Connection + Intel Wireless 7265

OS: Ubuntu 15.04, Kernel: 3.18.0-9-generic (x86_64), Desktop: Unity 7.3.1, Display Server: X Server 1.16.2.901 (1.16.3 RC 1), Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 10.3.2, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: intel_pstate powersave
Graphics Notes: SNA

Testing initiated at 25 January 2015 15:00 by user phoronix.

CPUFreq Performance

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Graphics Notes: SNA

Testing initiated at 25 January 2015 15:46 by user phoronix.

CPUFreq Ondemand

Processor: Intel Core i7-5600U @ 2.60GHz (4 Cores), Motherboard: LENOVO 20BSCTO1WW, Chipset: Intel Broadwell-U-OPI, Memory: 8192MB, Disk: 128GB SAMSUNG MZNTE128, Graphics: Intel Broadwell-U (950MHz), Audio: Intel Broadwell-U Audio, Network: Intel Connection + Intel Wireless 7265

OS: Ubuntu 15.04, Kernel: 3.18.0-9-generic (x86_64), Desktop: Unity 7.3.1, Display Server: X Server 1.16.2.901 (1.16.3 RC 1), Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 10.3.2, Compiler: GCC 4.9.2, File-System: ext4, Screen Resolution: 1920x1080

Compiler Notes: --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --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-multilib --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-multilib-list=m32,m64,mx32 --with-tune=generic -v
Processor Notes: Scaling Governor: acpi-cpufreq ondemand
Graphics Notes: SNA

Testing initiated at 25 January 2015 17:33 by user phoronix.