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
Jump To Table - Results

View

Do Not Show Noisy Results
Do Not Show Results With Incomplete Data
Do Not Show Results With Little Change/Spread
List Notable Results
Show Result Confidence Charts
Allow Limiting Results To Certain Suite(s)

Statistics

Show Overall Harmonic Mean(s)
Show Overall Geometric Mean
Show Wins / Losses Counts (Pie Chart)
Normalize Results
Remove Outliers Before Calculating Averages

Graph Settings

Force Line Graphs Where Applicable
Convert To Scalar Where Applicable
Prefer Vertical Bar Graphs
No Box Plots
On Line Graphs With Missing Data, Connect The Line Gaps

Additional Graphs

Show Perf Per Clock Calculation Graphs Where Applicable

Multi-Way Comparison

Condense Multi-Option Tests Into Single Result Graphs

Table

Show Detailed System Result Table

Run Management

Highlight
Result
Toggle/Hide
Result
Result
Identifier
View Logs
Performance Per
Dollar
Date
Run
  Test
  Duration
P-State Powersave
January 25 2015
 
P-State Performance
January 25 2015
 
CPUFreq Performance
January 25 2015
 
CPUFreq Ondemand
January 25 2015
 
Invert Behavior (Only Show Selected Data)
 

Only show results where is faster than
Only show results matching title/arguments (delimit multiple options with a comma):
Do not show results matching title/arguments (delimit multiple options with a comma):

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 - Ultrax264: H.264 Video Encodingfftw: Stock - 2D FFT Size 32fftw: Stock - 2D FFT Size 2048build-linux-kernel: Time To Compileencode-mp3: WAV To MP3ffmpeg: H.264 HD To NTSC DVP-State PowersaveP-State PerformanceCPUFreq PerformanceCPUFreq Ondemand37.27166.8655.7073.576756.123895.68283.5612.8918.2837.37165.4955.6173.426780.003911.08281.8412.8718.2637.17167.6655.9673.116732.963911.96280.2112.8719.7737.40166.6455.9073.196739.223888.84282.7512.8219.84OpenBenchmarking.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

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: 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

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

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 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

OpenArena

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

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

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

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

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.