AmpereOne CPUFreq Driver Governor Performance

AmpereOne testing for a future article on Phoronix.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 2409108-NE-AMPEREONE66
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

Multi-Way Comparison

Condense Multi-Option Tests Into Single Result Graphs
Condense Test Profiles With Multiple Version Results Into Single Result Graphs

Table

Show Detailed System Result Table

Run Management

Highlight
Result
Toggle/Hide
Result
Result
Identifier
Performance Per
Dollar
Date
Run
  Test
  Duration
cppc_cpufreq schedutil
September 10
  7 Hours, 10 Minutes
cppc_cpufreq performance
September 10
  5 Hours, 41 Minutes
Invert Behavior (Only Show Selected Data)
  6 Hours, 25 Minutes
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):


AmpereOne CPUFreq Driver Governor PerformanceOpenBenchmarking.orgPhoronix Test SuiteAmpereOne @ 3.20GHz (192 Cores)Supermicro ARS-211M-NR R13SPD v1.02 (T20240726102529 BIOS)Ampere Computing LLC Device e2088 x 64GB DDR5-5200MT/s3841GB SAMSUNG MZQL23T8HCLS-00A07 + 960GB SAMSUNG MZ1L2960HCJR-00A07 + 64GB Flash DriveASPEED2 x Broadcom BCM57414 NetXtreme-E 10Gb/25Gb + 2 x Mellanox MT2892Debian6.10.6-arm64 (aarch64)GCC 14.2.0ext41920x1200ProcessorMotherboardChipsetMemoryDiskGraphicsNetworkOSKernelCompilerFile-SystemScreen ResolutionAmpereOne CPUFreq Driver Governor Performance BenchmarksSystem Logs- Transparent Huge Pages: always- --build=aarch64-linux-gnu --disable-libquadmath --disable-libquadmath-support --disable-werror --enable-bootstrap --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-fix-cortex-a53-843419 --enable-gnu-unique-object --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust --enable-libphobos-checking=release --enable-libstdcxx-backtrace --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-link-serialization=4 --enable-multiarch --enable-nls --enable-objc-gc=auto --enable-offload-defaulted --enable-offload-targets=nvptx-none=/build/reproducible-path/gcc-14-14.2.0/debian/tmp-nvptx/usr --enable-plugin --enable-shared --enable-threads=posix --host=aarch64-linux-gnu --program-prefix=aarch64-linux-gnu- --target=aarch64-linux-gnu --with-build-config=bootstrap-lto-lean --with-default-libstdcxx-abi=new --with-gcc-major-version-only --with-target-system-zlib=auto --without-cuda-driver -v - cppc_cpufreq schedutil: Scaling Governor: cppc_cpufreq schedutil (Boost: Disabled)- cppc_cpufreq performance: Scaling Governor: cppc_cpufreq performance (Boost: Disabled)- OpenJDK Runtime Environment (build 24-ea+14-Debian-1)- Python 3.12.5- gather_data_sampling: Not affected + itlb_multihit: Not affected + l1tf: Not affected + mds: Not affected + meltdown: Not affected + mmio_stale_data: Not affected + reg_file_data_sampling: Not affected + retbleed: Not affected + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Not affected + srbds: Not affected + tsx_async_abort: Not affected

cppc_cpufreq schedutil vs. cppc_cpufreq performance ComparisonPhoronix Test SuiteBaseline+45.2%+45.2%+90.4%+90.4%+135.6%+135.6%+180.8%+180.8%180.9%171.6%144.4%126.7%125%124.6%120.6%113.8%26%16.1%7%4.8%3.7%3.3%3%2.6%2.6%libx265 - LiveP.R.W.S.S.MBosphorus 1080plibx265 - Uploadlibx265 - Platformlibx265 - Video On DemandBosphorus 4KBosphorus 1080pBosphorus 4KT.B.TScale11.3%Total TimemotorBike - Mesh Time6.3%W.l.H6.2%Mobilenet QuantWavelet BlurRotate 90 Degrees3.5%Tile GlassD.L.M.Fdefconfiglibx264 - LiveFFmpegTTSIOD 3D Rendererx265FFmpegFFmpegFFmpegx264x264x265RawTherapeeGEGLSudokutOpenFOAMSPECFEM3DTensorFlow LiteGEGLGEGLGEGLSciMarkTimed Linux Kernel CompilationFFmpegcppc_cpufreq schedutilcppc_cpufreq performance

AmpereOne CPUFreq Driver Governor Performanceffmpeg: libx265 - Platformffmpeg: libx265 - Video On Demandgmic: 2D Function Plotting, 1000 Timesqe: AUSURF112ffmpeg: libx264 - Uploadffmpeg: libx265 - Uploadbuild-llvm: Unix Makefilesffmpeg: libx264 - Platformffmpeg: libx264 - Video On Demandopenfoam: motorBike - Execution Timeopenfoam: motorBike - Mesh Timeasmfish: 1024 Hash Memory, 26 Depthffmpeg: libx265 - Livetensorflow-lite: Mobilenet Quanttensorflow-lite: NASNet Mobilebuild-llvm: Ninjatensorflow-lite: Inception ResNet V2tensorflow-lite: Inception V4gegl: Cartoonx265: Bosphorus 4Kbuild-linux-kernel: allmodconfigcachebench: Read / Modify / Writecachebench: Writecachebench: Readgmic: 3D Elevated Function In Rand Colors, 100 Timesrawtherapee: Total Benchmark Timebuild-linux-kernel: defconfiggegl: Color Enhancespecfem3d: Water-layered Halfspacespecfem3d: Tomographic Modelgegl: Rotate 90 Degreesffmpeg: libx264 - Livespecfem3d: Mount St. Helenstensorflow-lite: SqueezeNetgegl: Wavelet Blurtensorflow-lite: Mobilenet Floataobench: 2048 x 2048 - Total Timespecfem3d: Homogeneous Halfspacegegl: Antialiascompress-gzip: Linux Source Tree Archiving To .tar.gzmt-dgemm: Sustained Floating-Point Rategegl: Tile Glassgegl: Reflectttsiod-renderer: Phong Rendering With Soft-Shadow Mappingcompress-7zip: Decompression Ratingcompress-7zip: Compression Ratingx265: Bosphorus 1080pscimark2: Compositespecfem3d: Layered Halfspacegmic: Plotting Isosurface Of A 3D Volume, 1000 Timessudokut: Total Timeoctave-benchmark: hackbench: 32 - Processpovray: Trace Timex264: Bosphorus 4Kgegl: Cropgegl: Scalex264: Bosphorus 1080pm-queens: Time To Solverust-prime: Prime Number Test To 200,000,000compress-pbzip2: FreeBSD-13.0-RELEASE-amd64-memstick.img Compressionn-queens: Elapsed Timescimark2: Dense LU Matrix Factorizationscimark2: Sparse Matrix Multiplyscimark2: Monte Carloscimark2: Jacobi Successive Over-Relaxationscimark2: Fast Fourier Transformcppc_cpufreq schedutilcppc_cpufreq performance10.3810.39200.586443.357.625.70322.87128.9829.01158.002133.91932844637722.3059013.95484823178.74526559132446237135.92911.77185.75463915.27602545787.1576114879.12125185.47784.63153.84276.78912.8065847614.37831237466.851126.584.40343838444460662.93627774952.4565.14392493540.70838.4071343.30348634.60233.476313.65288936766535416.97351.9614.35697651920.69514.78911.45313.3218.02129.8210.6398.95673.115.3603.0991.7931590.952441.24415.90116.90563.24222.5223.3523.34197.359443.287.6612.92321.86329.2529.24157.472142.35933343184062.6356326.15503677178.47026635602458877134.22414.8363916.94939145800.6167814879.04873484.12172.86652.45676.65513.6047220614.40224317769.214129.864.43704964844468660.71927748552.5855.21985651941.04538.3001348.91287533.48833.315851.87689252266221141.47355.8514.59446619320.71913.82511.41913.4518.03865.7810.5269.970156.315.3453.0811.7910860.940454.52417.47116.51563.94226.82OpenBenchmarking.org

FFmpeg

This is a benchmark of the FFmpeg multimedia framework. The FFmpeg test profile is making use of a modified version of vbench from Columbia University's Architecture and Design Lab (ARCADE) [http://arcade.cs.columbia.edu/vbench/] that is a benchmark for video-as-a-service workloads. The test profile offers the options of a range of vbench scenarios based on freely distributable video content and offers the options of using the x264 or x265 video encoders for transcoding. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx265 - Scenario: Platformcppc_cpufreq performancecppc_cpufreq schedutil612182430SE +/- 0.01, N = 3SE +/- 0.00, N = 323.3510.381. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx265 - Scenario: Video On Demandcppc_cpufreq performancecppc_cpufreq schedutil612182430SE +/- 0.01, N = 3SE +/- 0.00, N = 323.3410.391. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

G'MIC

G'MIC is an open-source framework for image processing. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterG'MICTest: 2D Function Plotting, 1000 Timescppc_cpufreq performancecppc_cpufreq schedutil4080120160200SE +/- 0.13, N = 3SE +/- 1.57, N = 12197.36200.59

Quantum ESPRESSO

Quantum ESPRESSO is an integrated suite of Open-Source computer codes for electronic-structure calculations and materials modeling at the nanoscale. It is based on density-functional theory, plane waves, and pseudopotentials. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterQuantum ESPRESSO 7.0Input: AUSURF112cppc_cpufreq performancecppc_cpufreq schedutil100200300400500SE +/- 0.64, N = 3SE +/- 0.48, N = 3443.28443.351. (F9X) gfortran options: -pthread -fopenmp -ldevXlib -lopenblas -lFoX_dom -lFoX_sax -lFoX_wxml -lFoX_common -lFoX_utils -lFoX_fsys -lfftw3_omp -lfftw3 -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

FFmpeg

This is a benchmark of the FFmpeg multimedia framework. The FFmpeg test profile is making use of a modified version of vbench from Columbia University's Architecture and Design Lab (ARCADE) [http://arcade.cs.columbia.edu/vbench/] that is a benchmark for video-as-a-service workloads. The test profile offers the options of a range of vbench scenarios based on freely distributable video content and offers the options of using the x264 or x265 video encoders for transcoding. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx264 - Scenario: Uploadcppc_cpufreq performancecppc_cpufreq schedutil246810SE +/- 0.00, N = 3SE +/- 0.01, N = 37.667.621. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx265 - Scenario: Uploadcppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.01, N = 3SE +/- 0.00, N = 312.925.701. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

Timed LLVM Compilation

This test times how long it takes to compile/build the LLVM compiler stack. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 16.0Build System: Unix Makefilescppc_cpufreq performancecppc_cpufreq schedutil70140210280350SE +/- 0.52, N = 3SE +/- 1.21, N = 3321.86322.87

FFmpeg

This is a benchmark of the FFmpeg multimedia framework. The FFmpeg test profile is making use of a modified version of vbench from Columbia University's Architecture and Design Lab (ARCADE) [http://arcade.cs.columbia.edu/vbench/] that is a benchmark for video-as-a-service workloads. The test profile offers the options of a range of vbench scenarios based on freely distributable video content and offers the options of using the x264 or x265 video encoders for transcoding. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx264 - Scenario: Platformcppc_cpufreq performancecppc_cpufreq schedutil714212835SE +/- 0.02, N = 3SE +/- 0.02, N = 329.2528.981. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx264 - Scenario: Video On Demandcppc_cpufreq performancecppc_cpufreq schedutil714212835SE +/- 0.01, N = 3SE +/- 0.01, N = 329.2429.011. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

OpenFOAM

OpenFOAM is the leading free, open-source software for computational fluid dynamics (CFD). This test profile currently uses the drivaerFastback test case for analyzing automotive aerodynamics or alternatively the older motorBike input. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterOpenFOAM 10Input: motorBike - Execution Timecppc_cpufreq performancecppc_cpufreq schedutil306090120150157.47158.001. (CXX) g++ options: -std=c++14 -O3 -mcpu=native -ftemplate-depth-100 -fPIC -fuse-ld=bfd -Xlinker --add-needed --no-as-needed -lfiniteVolume -lmeshTools -lparallel -llagrangian -lregionModels -lgenericPatchFields -lOpenFOAM -ldl -lm

OpenBenchmarking.orgSeconds, Fewer Is BetterOpenFOAM 10Input: motorBike - Mesh Timecppc_cpufreq performancecppc_cpufreq schedutil306090120150142.36133.921. (CXX) g++ options: -std=c++14 -O3 -mcpu=native -ftemplate-depth-100 -fPIC -fuse-ld=bfd -Xlinker --add-needed --no-as-needed -lfiniteVolume -lmeshTools -lparallel -llagrangian -lregionModels -lgenericPatchFields -lOpenFOAM -ldl -lm

asmFish

This is a test of asmFish, an advanced chess benchmark written in Assembly. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgNodes/second, More Is BetterasmFish 2018-07-231024 Hash Memory, 26 Depthcppc_cpufreq performancecppc_cpufreq schedutil70M140M210M280M350MSE +/- 2431520.90, N = 11SE +/- 2188135.83, N = 3333431840328446377

FFmpeg

This is a benchmark of the FFmpeg multimedia framework. The FFmpeg test profile is making use of a modified version of vbench from Columbia University's Architecture and Design Lab (ARCADE) [http://arcade.cs.columbia.edu/vbench/] that is a benchmark for video-as-a-service workloads. The test profile offers the options of a range of vbench scenarios based on freely distributable video content and offers the options of using the x264 or x265 video encoders for transcoding. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx265 - Scenario: Livecppc_cpufreq performancecppc_cpufreq schedutil1428425670SE +/- 0.09, N = 3SE +/- 0.01, N = 362.6322.301. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

TensorFlow Lite

This is a benchmark of the TensorFlow Lite implementation focused on TensorFlow machine learning for mobile, IoT, edge, and other cases. The current Linux support is limited to running on CPUs. This test profile is measuring the average inference time. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: Mobilenet Quantcppc_cpufreq performancecppc_cpufreq schedutil13K26K39K52K65KSE +/- 654.60, N = 3SE +/- 542.76, N = 1556326.159013.9

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: NASNet Mobilecppc_cpufreq performancecppc_cpufreq schedutil1.2M2.4M3.6M4.8M6MSE +/- 5748.87, N = 3SE +/- 6138.50, N = 355036775484823

Timed LLVM Compilation

This test times how long it takes to compile/build the LLVM compiler stack. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 16.0Build System: Ninjacppc_cpufreq performancecppc_cpufreq schedutil4080120160200SE +/- 0.69, N = 3SE +/- 0.70, N = 3178.47178.75

TensorFlow Lite

This is a benchmark of the TensorFlow Lite implementation focused on TensorFlow machine learning for mobile, IoT, edge, and other cases. The current Linux support is limited to running on CPUs. This test profile is measuring the average inference time. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: Inception ResNet V2cppc_cpufreq performancecppc_cpufreq schedutil600K1200K1800K2400K3000KSE +/- 12475.10, N = 3SE +/- 7167.83, N = 326635602655913

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: Inception V4cppc_cpufreq performancecppc_cpufreq schedutil500K1000K1500K2000K2500KSE +/- 7979.65, N = 3SE +/- 7658.20, N = 324588772446237

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Cartooncppc_cpufreq performancecppc_cpufreq schedutil306090120150SE +/- 0.04, N = 3SE +/- 0.07, N = 3134.22135.93

x265

OpenBenchmarking.orgFrames Per Second, More Is Betterx265Video Input: Bosphorus 4Kcppc_cpufreq performancecppc_cpufreq schedutil48121620SE +/- 0.14, N = 15SE +/- 0.17, N = 314.8311.771. x265 [info]: HEVC encoder version 3.6+1-aa7f602f7

Timed Linux Kernel Compilation

This test times how long it takes to build the Linux kernel in a default configuration (defconfig) for the architecture being tested or alternatively an allmodconfig for building all possible kernel modules for the build. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 6.8Build: allmodconfigcppc_cpufreq schedutil4080120160200SE +/- 1.00, N = 3185.75

Build: allmodconfig

cppc_cpufreq performance: The test quit with a non-zero exit status. E: lib/math/gcd.c:86: fatal error: when writing output to : Broken pipe

CacheBench

This is a performance test of CacheBench, which is part of LLCbench. CacheBench is designed to test the memory and cache bandwidth performance Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Read / Modify / Writecppc_cpufreq performancecppc_cpufreq schedutil14K28K42K56K70KSE +/- 1.02, N = 3SE +/- 0.97, N = 363916.9563915.28MIN: 61576.6 / MAX: 64879.48MIN: 61576.01 / MAX: 64895.471. (CC) gcc options: -O3 -lrt

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Writecppc_cpufreq performancecppc_cpufreq schedutil10K20K30K40K50KSE +/- 95.37, N = 3SE +/- 160.46, N = 345800.6245787.16MIN: 38537.04 / MAX: 48574.58MIN: 38558 / MAX: 48534.421. (CC) gcc options: -O3 -lrt

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Readcppc_cpufreq performancecppc_cpufreq schedutil10002000300040005000SE +/- 0.07, N = 3SE +/- 0.04, N = 34879.054879.12MIN: 4877.37 / MAX: 4880.42MIN: 4877.41 / MAX: 4880.431. (CC) gcc options: -O3 -lrt

G'MIC

G'MIC is an open-source framework for image processing. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterG'MICTest: 3D Elevated Function In Random Colors, 100 Timescppc_cpufreq performancecppc_cpufreq schedutil20406080100SE +/- 0.14, N = 3SE +/- 0.46, N = 384.1285.48

RawTherapee

RawTherapee is a cross-platform, open-source multi-threaded RAW image processing program. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterRawTherapeeTotal Benchmark Timecppc_cpufreq performancecppc_cpufreq schedutil20406080100SE +/- 0.09, N = 3SE +/- 0.19, N = 372.8784.631. RawTherapee, version 5.10, command line.

Timed Linux Kernel Compilation

This test times how long it takes to build the Linux kernel in a default configuration (defconfig) for the architecture being tested or alternatively an allmodconfig for building all possible kernel modules for the build. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 6.8Build: defconfigcppc_cpufreq performancecppc_cpufreq schedutil1224364860SE +/- 0.63, N = 4SE +/- 0.60, N = 552.4653.84

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Color Enhancecppc_cpufreq performancecppc_cpufreq schedutil20406080100SE +/- 0.01, N = 3SE +/- 0.04, N = 376.6676.79

SPECFEM3D

simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra. This test profile currently relies on CPU-based execution for SPECFEM3D and using a variety of their built-in examples/models for benchmarking. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSPECFEM3D 4.1.1Model: Water-layered Halfspacecppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.13, N = 15SE +/- 0.06, N = 313.6012.811. (F9X) gfortran options: -O2 -fopenmp -std=f2008 -fimplicit-none -fmax-errors=10 -pedantic -pedantic-errors -O3 -finline-functions -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

OpenBenchmarking.orgSeconds, Fewer Is BetterSPECFEM3D 4.1.1Model: Tomographic Modelcppc_cpufreq performancecppc_cpufreq schedutil0.99051.9812.97153.9624.9525SE +/- 0.120014285, N = 15SE +/- 0.130627218, N = 154.4022431774.3783123741. (F9X) gfortran options: -O2 -fopenmp -std=f2008 -fimplicit-none -fmax-errors=10 -pedantic -pedantic-errors -O3 -finline-functions -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Rotate 90 Degreescppc_cpufreq performancecppc_cpufreq schedutil1530456075SE +/- 0.29, N = 3SE +/- 0.29, N = 369.2166.85

FFmpeg

This is a benchmark of the FFmpeg multimedia framework. The FFmpeg test profile is making use of a modified version of vbench from Columbia University's Architecture and Design Lab (ARCADE) [http://arcade.cs.columbia.edu/vbench/] that is a benchmark for video-as-a-service workloads. The test profile offers the options of a range of vbench scenarios based on freely distributable video content and offers the options of using the x264 or x265 video encoders for transcoding. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterFFmpeg 7.0Encoder: libx264 - Scenario: Livecppc_cpufreq performancecppc_cpufreq schedutil306090120150SE +/- 0.09, N = 3SE +/- 0.14, N = 3129.86126.581. (CXX) g++ options: -O3 -rdynamic -lpthread -lrt -ldl -lnuma

SPECFEM3D

simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra. This test profile currently relies on CPU-based execution for SPECFEM3D and using a variety of their built-in examples/models for benchmarking. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSPECFEM3D 4.1.1Model: Mount St. Helenscppc_cpufreq performancecppc_cpufreq schedutil0.99831.99662.99493.99324.9915SE +/- 0.089406327, N = 15SE +/- 0.088728555, N = 124.4370496484.4034383841. (F9X) gfortran options: -O2 -fopenmp -std=f2008 -fimplicit-none -fmax-errors=10 -pedantic -pedantic-errors -O3 -finline-functions -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

TensorFlow Lite

This is a benchmark of the TensorFlow Lite implementation focused on TensorFlow machine learning for mobile, IoT, edge, and other cases. The current Linux support is limited to running on CPUs. This test profile is measuring the average inference time. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: SqueezeNetcppc_cpufreq performancecppc_cpufreq schedutil100K200K300K400K500KSE +/- 2447.28, N = 3SE +/- 2098.15, N = 3444686444606

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Wavelet Blurcppc_cpufreq performancecppc_cpufreq schedutil1428425670SE +/- 0.16, N = 3SE +/- 0.05, N = 360.7262.94

TensorFlow Lite

This is a benchmark of the TensorFlow Lite implementation focused on TensorFlow machine learning for mobile, IoT, edge, and other cases. The current Linux support is limited to running on CPUs. This test profile is measuring the average inference time. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMicroseconds, Fewer Is BetterTensorFlow Lite 2022-05-18Model: Mobilenet Floatcppc_cpufreq performancecppc_cpufreq schedutil60K120K180K240K300KSE +/- 1397.68, N = 3SE +/- 1552.56, N = 3277485277749

AOBench

AOBench is a lightweight ambient occlusion renderer, written in C. The test profile is using a size of 2048 x 2048. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterAOBenchSize: 2048 x 2048 - Total Timecppc_cpufreq performancecppc_cpufreq schedutil1224364860SE +/- 0.15, N = 3SE +/- 0.01, N = 352.5952.461. (CC) gcc options: -lm -O3

SPECFEM3D

simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra. This test profile currently relies on CPU-based execution for SPECFEM3D and using a variety of their built-in examples/models for benchmarking. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSPECFEM3D 4.1.1Model: Homogeneous Halfspacecppc_cpufreq performancecppc_cpufreq schedutil1.17452.3493.52354.6985.8725SE +/- 0.092197622, N = 15SE +/- 0.040013186, N = 45.2198565195.1439249351. (F9X) gfortran options: -O2 -fopenmp -std=f2008 -fimplicit-none -fmax-errors=10 -pedantic -pedantic-errors -O3 -finline-functions -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Antialiascppc_cpufreq performancecppc_cpufreq schedutil918273645SE +/- 0.03, N = 3SE +/- 0.01, N = 341.0540.71

Gzip Compression

This test measures the time needed to archive/compress two copies of the Linux 4.13 kernel source tree using Gzip compression. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGzip CompressionLinux Source Tree Archiving To .tar.gzcppc_cpufreq performancecppc_cpufreq schedutil918273645SE +/- 0.03, N = 3SE +/- 0.03, N = 338.3038.41

ACES DGEMM

OpenBenchmarking.orgGFLOP/s, More Is BetterACES DGEMM 1.0Sustained Floating-Point Ratecppc_cpufreq performancecppc_cpufreq schedutil30060090012001500SE +/- 0.75, N = 3SE +/- 0.93, N = 31348.911343.301. (CC) gcc options: -ffast-math -O3 -fopenmp -lopenblas

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Tile Glasscppc_cpufreq performancecppc_cpufreq schedutil816243240SE +/- 0.01, N = 3SE +/- 0.01, N = 333.4934.60

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Reflectcppc_cpufreq performancecppc_cpufreq schedutil816243240SE +/- 0.02, N = 3SE +/- 0.01, N = 333.3233.48

TTSIOD 3D Renderer

A portable GPL 3D software renderer that supports OpenMP and Intel Threading Building Blocks with many different rendering modes. This version does not use OpenGL but is entirely CPU/software based. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFPS, More Is BetterTTSIOD 3D Renderer 2.3bPhong Rendering With Soft-Shadow Mappingcppc_cpufreq performancecppc_cpufreq schedutil2004006008001000SE +/- 4.07, N = 3SE +/- 3.26, N = 3851.88313.651. (CXX) g++ options: -O3 -fomit-frame-pointer -ffast-math -mtune=native -flto -lSDL -fopenmp -fwhole-program -lstdc++

7-Zip Compression

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 24.05Test: Decompression Ratingcppc_cpufreq performancecppc_cpufreq schedutil200K400K600K800K1000KSE +/- 4672.23, N = 3SE +/- 8228.61, N = 38925228893671. (CXX) g++ options: -lpthread -ldl -O2 -fPIC

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 24.05Test: Compression Ratingcppc_cpufreq performancecppc_cpufreq schedutil140K280K420K560K700KSE +/- 3075.70, N = 3SE +/- 6938.99, N = 36622116653541. (CXX) g++ options: -lpthread -ldl -O2 -fPIC

x265

OpenBenchmarking.orgFrames Per Second, More Is Betterx265Video Input: Bosphorus 1080pcppc_cpufreq performancecppc_cpufreq schedutil918273645SE +/- 0.02, N = 4SE +/- 0.01, N = 341.4716.971. x265 [info]: HEVC encoder version 3.6+1-aa7f602f7

SciMark

This test runs the ANSI C version of SciMark 2.0, which is a benchmark for scientific and numerical computing developed by programmers at the National Institute of Standards and Technology. This test is made up of Fast Foruier Transform, Jacobi Successive Over-relaxation, Monte Carlo, Sparse Matrix Multiply, and dense LU matrix factorization benchmarks. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Compositecppc_cpufreq performancecppc_cpufreq schedutil80160240320400SE +/- 3.19, N = 3SE +/- 3.28, N = 3355.85351.961. (CC) gcc options: -lm

SPECFEM3D

simulates acoustic (fluid), elastic (solid), coupled acoustic/elastic, poroelastic or seismic wave propagation in any type of conforming mesh of hexahedra. This test profile currently relies on CPU-based execution for SPECFEM3D and using a variety of their built-in examples/models for benchmarking. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSPECFEM3D 4.1.1Model: Layered Halfspacecppc_cpufreq performancecppc_cpufreq schedutil48121620SE +/- 0.10, N = 3SE +/- 0.04, N = 314.5914.361. (F9X) gfortran options: -O2 -fopenmp -std=f2008 -fimplicit-none -fmax-errors=10 -pedantic -pedantic-errors -O3 -finline-functions -lmpi_usempif08 -lmpi_mpifh -lmpi -lopen-rte -lopen-pal -lhwloc -levent_core -levent_pthreads -lm -lz

G'MIC

G'MIC is an open-source framework for image processing. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterG'MICTest: Plotting Isosurface Of A 3D Volume, 1000 Timescppc_cpufreq performancecppc_cpufreq schedutil510152025SE +/- 0.02, N = 3SE +/- 0.02, N = 320.7220.70

Sudokut

This is a test of Sudokut, which is a Sudoku puzzle solver written in Tcl. This test measures how long it takes to solve 100 Sudoku puzzles. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSudokut 0.4Total Timecppc_cpufreq performancecppc_cpufreq schedutil48121620SE +/- 0.00, N = 4SE +/- 0.00, N = 413.8314.79

GNU Octave Benchmark

This test profile measures how long it takes to complete several reference GNU Octave files via octave-benchmark. GNU Octave is used for numerical computations and is an open-source alternative to MATLAB. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGNU Octave Benchmark 9.2.0cppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.02, N = 5SE +/- 0.00, N = 511.4211.45

Hackbench

This is a benchmark of Hackbench, a test of the Linux kernel scheduler. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterHackbenchCount: 32 - Type: Processcppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.06, N = 4SE +/- 0.06, N = 413.4513.321. (CC) gcc options: -lpthread

POV-Ray

This is a test of POV-Ray, the Persistence of Vision Raytracer. POV-Ray is used to create 3D graphics using ray-tracing. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterPOV-Ray 3.7.0.7Trace Timecppc_cpufreq performancecppc_cpufreq schedutil246810SE +/- 0.021, N = 5SE +/- 0.014, N = 58.0388.0211. (CXX) g++ options: -pipe -O3 -ffast-math -lX11 -ltiff -ljpeg -lpng -lz -lrt -lm -lboost_thread -lboost_system

x264

This is a multi-threaded test of the x264 video encoder run on the CPU with a choice of 1080p or 4K video input. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2022-02-22Video Input: Bosphorus 4Kcppc_cpufreq performancecppc_cpufreq schedutil1530456075SE +/- 0.02, N = 5SE +/- 0.14, N = 365.7829.821. (CC) gcc options: -ldl -lm -lpthread -O3 -flto

GEGL

GEGL is the Generic Graphics Library and is the library/framework used by GIMP and other applications like GNOME Photos. This test profile times how long it takes to complete various GEGL operations on a static set of sample JPEG images. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Cropcppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.01, N = 5SE +/- 0.01, N = 510.5310.64

OpenBenchmarking.orgSeconds, Fewer Is BetterGEGLOperation: Scalecppc_cpufreq performancecppc_cpufreq schedutil3691215SE +/- 0.057, N = 5SE +/- 0.057, N = 59.9708.956

x264

This is a multi-threaded test of the x264 video encoder run on the CPU with a choice of 1080p or 4K video input. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2022-02-22Video Input: Bosphorus 1080pcppc_cpufreq performancecppc_cpufreq schedutil306090120150SE +/- 0.05, N = 8SE +/- 0.06, N = 6156.3173.111. (CC) gcc options: -ldl -lm -lpthread -O3 -flto

m-queens

A solver for the N-queens problem with multi-threading support via the OpenMP library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is Betterm-queens 1.2Time To Solvecppc_cpufreq performancecppc_cpufreq schedutil1.2062.4123.6184.8246.03SE +/- 0.007, N = 7SE +/- 0.005, N = 75.3455.3601. (CXX) g++ options: -fopenmp -O2 -march=native

Rust Prime Benchmark

Based on petehunt/rust-benchmark, this is a prime number benchmark that is multi-threaded and written in Rustlang. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterRust Prime BenchmarkPrime Number Test To 200,000,000cppc_cpufreq performancecppc_cpufreq schedutil0.69731.39462.09192.78923.4865SE +/- 0.000, N = 9SE +/- 0.001, N = 93.0813.0991. (CC) gcc options: -lgcc_s -lutil -lrt -lpthread -lm -ldl -lc -pie -nodefaultlibs

OpenFOAM

OpenFOAM is the leading free, open-source software for computational fluid dynamics (CFD). This test profile currently uses the drivaerFastback test case for analyzing automotive aerodynamics or alternatively the older motorBike input. Learn more via the OpenBenchmarking.org test page.

Input: drivaerFastback, Large Mesh Size

cppc_cpufreq schedutil: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

cppc_cpufreq performance: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

Input: drivaerFastback, Medium Mesh Size

cppc_cpufreq schedutil: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

cppc_cpufreq performance: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

Parallel BZIP2 Compression

This test measures the time needed to compress a file (FreeBSD-13.0-RELEASE-amd64-memstick.img) using Parallel BZIP2 compression. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterParallel BZIP2 Compression 1.1.13FreeBSD-13.0-RELEASE-amd64-memstick.img Compressioncppc_cpufreq performancecppc_cpufreq schedutil0.40350.8071.21051.6142.0175SE +/- 0.001307, N = 11SE +/- 0.005634, N = 111.7910861.7931591. (CXX) g++ options: -O2 -pthread -lbz2 -lpthread

OpenFOAM

OpenFOAM is the leading free, open-source software for computational fluid dynamics (CFD). This test profile currently uses the drivaerFastback test case for analyzing automotive aerodynamics or alternatively the older motorBike input. Learn more via the OpenBenchmarking.org test page.

Input: drivaerFastback, Small Mesh Size

cppc_cpufreq schedutil: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

cppc_cpufreq performance: The test quit with a non-zero exit status. E: [0] --> FOAM FATAL ERROR:

N-Queens

This is a test of the OpenMP version of a test that solves the N-queens problem. The board problem size is 18. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterN-Queens 1.0Elapsed Timecppc_cpufreq performancecppc_cpufreq schedutil0.21420.42840.64260.85681.071SE +/- 0.001, N = 13SE +/- 0.000, N = 130.9400.9521. (CC) gcc options: -static -fopenmp -O3 -march=native

Apache Spark

This is a benchmark of Apache Spark with its PySpark interface. Apache Spark is an open-source unified analytics engine for large-scale data processing and dealing with big data. This test profile benchmars the Apache Spark in a single-system configuration using spark-submit. The test makes use of DIYBigData's pyspark-benchmark (https://github.com/DIYBigData/pyspark-benchmark/) for generating of test data and various Apache Spark operations. Learn more via the OpenBenchmarking.org test page.

Row Count: 1000000 - Partitions: 100

cppc_cpufreq schedutil: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

cppc_cpufreq performance: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

Row Count: 1000000 - Partitions: 1000

cppc_cpufreq schedutil: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

cppc_cpufreq performance: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

Row Count: 1000000 - Partitions: 500

cppc_cpufreq schedutil: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

cppc_cpufreq performance: The test run did not produce a result. E: py4j.protocol.Py4JJavaError: An error occurred while calling None.org.apache.spark.api.java.JavaSparkContext.

Hackbench

This is a benchmark of Hackbench, a test of the Linux kernel scheduler. Learn more via the OpenBenchmarking.org test page.

Count: 32 - Type: Thread

cppc_cpufreq schedutil: The test quit with a non-zero exit status. E: Creating fdpair (error: Too many open files)

cppc_cpufreq performance: The test quit with a non-zero exit status. E: Creating fdpair (error: Too many open files)

Java JMH

This very basic test profile runs the stock benchmark of the Java JMH benchmark via Maven. Learn more via the OpenBenchmarking.org test page.

Throughput

cppc_cpufreq schedutil: The test run did not produce a result. E: Exception in thread "main" java.lang.RuntimeException: ERROR: Unable to find the resource: /META-INF/BenchmarkList

cppc_cpufreq performance: The test run did not produce a result. E: Exception in thread "main" java.lang.RuntimeException: ERROR: Unable to find the resource: /META-INF/BenchmarkList

CPU Power Consumption Monitor

OpenBenchmarking.orgWattsCPU Power Consumption MonitorPhoronix Test Suite System Monitoringcppc_cpufreq performancecppc_cpufreq schedutil70140210280350Min: 96.97 / Avg: 154.76 / Max: 395.49Min: 93.8 / Avg: 137.06 / Max: 398.12

Meta Performance Per Watts

OpenBenchmarking.orgPerformance Per Watts, More Is BetterMeta Performance Per WattsPerformance Per Wattscppc_cpufreq performancecppc_cpufreq schedutil100200300400500481.58359.94

SciMark

OpenBenchmarking.orgMflops Per Watt, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix Factorizationcppc_cpufreq performancecppc_cpufreq schedutil1.00582.01163.01744.02325.0294.3524.470

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix Factorizationcppc_cpufreq performancecppc_cpufreq schedutil100200300400500SE +/- 16.65, N = 3SE +/- 16.04, N = 3454.52441.241. (CC) gcc options: -lm

OpenBenchmarking.orgMflops Per Watt, More Is BetterSciMark 2.0Computational Test: Sparse Matrix Multiplycppc_cpufreq performancecppc_cpufreq schedutil0.96281.92562.88843.85124.8143.9964.279

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix Multiplycppc_cpufreq performancecppc_cpufreq schedutil90180270360450SE +/- 0.08, N = 3SE +/- 0.09, N = 3417.47415.901. (CC) gcc options: -lm

OpenBenchmarking.orgMflops Per Watt, More Is BetterSciMark 2.0Computational Test: Monte Carlocppc_cpufreq performancecppc_cpufreq schedutil0.26750.5350.80251.071.33751.1131.189

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte Carlocppc_cpufreq performancecppc_cpufreq schedutil306090120150SE +/- 0.48, N = 3SE +/- 0.06, N = 3116.51116.901. (CC) gcc options: -lm

OpenBenchmarking.orgMflops Per Watt, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-Relaxationcppc_cpufreq performancecppc_cpufreq schedutil1.27852.5573.83555.1146.39255.3885.682

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-Relaxationcppc_cpufreq performancecppc_cpufreq schedutil120240360480600SE +/- 0.02, N = 3SE +/- 0.04, N = 3563.94563.241. (CC) gcc options: -lm

OpenBenchmarking.orgMflops Per Watt, More Is BetterSciMark 2.0Computational Test: Fast Fourier Transformcppc_cpufreq performancecppc_cpufreq schedutil0.5111.0221.5332.0442.5552.1682.271

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier Transformcppc_cpufreq performancecppc_cpufreq schedutil50100150200250SE +/- 0.31, N = 3SE +/- 0.39, N = 3226.82222.521. (CC) gcc options: -lm