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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C/C++ Compiler Tests 3 Tests
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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 Scalingopenarena: 1920 x 1080xonotic: 1920 x 1080 - Lowxonotic: 1920 x 1080 - Ultrafftw: Stock - 2D FFT Size 32fftw: Stock - 2D FFT Size 2048x264: H.264 Video Encodingbuild-linux-kernel: Time To Compileencode-mp3: WAV To MP3ffmpeg: H.264 HD To NTSC DVP-State PowersaveP-State PerformanceCPUFreq PerformanceCPUFreq Ondemand37.27166.8655.706756.123895.6873.57283.5612.8918.2837.37165.4955.616780.003911.0873.42281.8412.8718.2637.17167.6655.966732.963911.9673.11280.2112.8719.7737.40166.6455.906739.223888.8473.19282.7512.8219.84OpenBenchmarking.org

OpenArena

OpenBenchmarking.orgFrames Per Second, More Is BetterOpenArena 0.8.8Resolution: 1920 x 1080CPUFreq PerformanceP-State PowersaveP-State PerformanceCPUFreq Ondemand918273645SE +/- 0.09, N = 3SE +/- 0.09, N = 3SE +/- 0.12, N = 3SE +/- 0.06, N = 337.1737.2737.3737.40MIN: 4 / MAX: 74MIN: 4 / MAX: 59MIN: 4 / MAX: 59MIN: 4 / MAX: 63
OpenBenchmarking.orgFrames Per Second, More Is BetterOpenArena 0.8.8Resolution: 1920 x 1080CPUFreq PerformanceP-State PowersaveP-State PerformanceCPUFreq Ondemand816243240Min: 37 / Avg: 37.17 / Max: 37.3Min: 37.1 / Avg: 37.27 / Max: 37.4Min: 37.2 / Avg: 37.37 / Max: 37.6Min: 37.3 / Avg: 37.4 / Max: 37.5

OpenBenchmarking.orgMilliseconds, Fewer Is BetterOpenArena 0.8.8Resolution: 1920 x 1080 - Total Frame TimeP-State PowersaveCPUFreq PerformanceCPUFreq OndemandP-State Performance1224364860Min: 4 / Avg: 26.87 / Max: 59Min: 4 / Avg: 26.72 / Max: 58Min: 4 / Avg: 26.63 / Max: 58Min: 4 / Avg: 26.55 / Max: 57

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: LowP-State PerformanceCPUFreq OndemandP-State PowersaveCPUFreq Performance4080120160200SE +/- 0.86, N = 3SE +/- 0.59, N = 3SE +/- 0.22, N = 3SE +/- 0.12, N = 3165.49166.64166.86167.66MIN: 109 / MAX: 266MIN: 93 / MAX: 269MIN: 92 / MAX: 268MIN: 94 / MAX: 269
OpenBenchmarking.orgFrames Per Second, More Is BetterXonotic 0.8Resolution: 1920 x 1080 - Effects Quality: LowP-State PerformanceCPUFreq OndemandP-State PowersaveCPUFreq Performance306090120150Min: 163.8 / Avg: 165.49 / Max: 166.63Min: 165.68 / Avg: 166.64 / Max: 167.71Min: 166.44 / Avg: 166.86 / Max: 167.15Min: 167.48 / Avg: 167.66 / Max: 167.88

OpenBenchmarking.orgFrames Per Second, More Is BetterXonotic 0.8Resolution: 1920 x 1080 - Effects Quality: UltraP-State PerformanceP-State PowersaveCPUFreq OndemandCPUFreq Performance1326395265SE +/- 0.12, N = 3SE +/- 0.06, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 355.6155.7055.9055.96MIN: 24 / MAX: 83MIN: 25 / MAX: 83MIN: 25 / MAX: 84MIN: 25 / MAX: 84
OpenBenchmarking.orgFrames Per Second, More Is BetterXonotic 0.8Resolution: 1920 x 1080 - Effects Quality: UltraP-State PerformanceP-State PowersaveCPUFreq OndemandCPUFreq Performance1122334455Min: 55.4 / Avg: 55.61 / Max: 55.82Min: 55.58 / Avg: 55.7 / Max: 55.8Min: 55.89 / Avg: 55.9 / Max: 55.91Min: 55.92 / Avg: 55.96 / Max: 56.03

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 32CPUFreq PerformanceCPUFreq OndemandP-State PowersaveP-State Performance15003000450060007500SE +/- 23.82, N = 5SE +/- 28.94, N = 5SE +/- 36.03, N = 5SE +/- 7.79, N = 56732.966739.226756.126780.001. (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 32CPUFreq PerformanceCPUFreq OndemandP-State PowersaveP-State Performance12002400360048006000Min: 6689.5 / Avg: 6732.96 / Max: 6795.3Min: 6652.1 / Avg: 6739.22 / Max: 6789.1Min: 6612.7 / Avg: 6756.12 / Max: 6803.2Min: 6762.8 / Avg: 6780 / Max: 6800.11. (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 OndemandP-State PowersaveP-State PerformanceCPUFreq Performance8001600240032004000SE +/- 7.38, N = 5SE +/- 17.79, N = 5SE +/- 8.09, N = 5SE +/- 9.01, N = 53888.843895.683911.083911.961. (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 OndemandP-State PowersaveP-State PerformanceCPUFreq Performance7001400210028003500Min: 3866.7 / Avg: 3888.84 / Max: 3904.1Min: 3861.2 / Avg: 3895.68 / Max: 3946Min: 3891.3 / Avg: 3911.08 / Max: 3931Min: 3888 / Avg: 3911.96 / Max: 3927.51. (CC) gcc options: -std=gnu99 -O3 -fomit-frame-pointer -mtune=native -malign-double -fstrict-aliasing -fno-schedule-insns -ffast-math -lm

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 EncodingCPUFreq PerformanceCPUFreq OndemandP-State PerformanceP-State Powersave1632486480SE +/- 0.20, N = 5SE +/- 0.18, N = 5SE +/- 0.22, N = 5SE +/- 0.07, N = 573.1173.1973.4273.571. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize
OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2014-08-30H.264 Video EncodingCPUFreq PerformanceCPUFreq OndemandP-State PerformanceP-State Powersave1428425670Min: 72.49 / Avg: 73.11 / Max: 73.61Min: 72.51 / Avg: 73.19 / Max: 73.59Min: 72.88 / Avg: 73.42 / Max: 74.11Min: 73.37 / Avg: 73.57 / Max: 73.791. (CC) gcc options: -ldl -m64 -lm -lpthread -O3 -ffast-math -std=gnu99 -fomit-frame-pointer -fno-tree-vectorize

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 CompileP-State PowersaveCPUFreq OndemandP-State PerformanceCPUFreq Performance60120180240300SE +/- 0.34, N = 3SE +/- 0.93, N = 3SE +/- 0.41, N = 3SE +/- 0.36, N = 3283.56282.75281.84280.21
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 3.18-rc6Time To CompileP-State PowersaveCPUFreq OndemandP-State PerformanceCPUFreq Performance50100150200250Min: 282.89 / Avg: 283.56 / Max: 283.94Min: 281.45 / Avg: 282.75 / Max: 284.54Min: 281.42 / Avg: 281.84 / Max: 282.67Min: 279.79 / Avg: 280.21 / Max: 280.93

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 MP3P-State PowersaveCPUFreq PerformanceP-State PerformanceCPUFreq Ondemand3691215SE +/- 0.04, N = 5SE +/- 0.05, N = 5SE +/- 0.02, N = 5SE +/- 0.02, N = 512.8912.8712.8712.821. (CC) gcc options: -O3 -fomit-frame-pointer -ffast-math -pipe -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3P-State PowersaveCPUFreq PerformanceP-State PerformanceCPUFreq Ondemand48121620Min: 12.79 / Avg: 12.89 / Max: 13.02Min: 12.77 / Avg: 12.87 / Max: 13.02Min: 12.82 / Avg: 12.87 / Max: 12.92Min: 12.76 / Avg: 12.82 / Max: 12.891. (CC) gcc options: -O3 -fomit-frame-pointer -ffast-math -pipe -lm

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 2.1.1H.264 HD To NTSC DVCPUFreq OndemandCPUFreq PerformanceP-State PowersaveP-State Performance510152025SE +/- 0.01, N = 3SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 319.8419.7718.2818.261. (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
OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 2.1.1H.264 HD To NTSC DVCPUFreq OndemandCPUFreq PerformanceP-State PowersaveP-State Performance510152025Min: 19.82 / Avg: 19.84 / Max: 19.85Min: 19.68 / Avg: 19.77 / Max: 19.9Min: 18.22 / Avg: 18.28 / Max: 18.33Min: 18.22 / Avg: 18.26 / Max: 18.341. (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

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.