Intel Atom D525 Compiler Testing

Intel Atom D525 testing with GCC 4.7 and LLVM/Clang 3.0 from the Ubuntu Quantal repository. Benchmarking by Michael Larabel for a future article on Phoronix.com just looking at GCC vs. Clang on low-end low-power x86 hardware.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1209140-RA-INTELATOM04
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Audio Encoding 2 Tests
Bioinformatics 3 Tests
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LLVM-Clang 3.0
September 14 2012
 
GCC 4.7.1
September 14 2012
 
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Intel Atom D525 Compiler TestingOpenBenchmarking.orgPhoronix Test SuiteIntel Atom D525 @ 1.80GHz (4 Cores)FOXCONN NETBOX nT-435/535Intel Atom D4xx/D5xx/N4xx/N5xx2048MB500GB Western Digital WD5000BEVT-2Intel Atom D4xx/D5xx/N4xx/N5xx IGPRealtek ALC888Realtek RTL8111/8168B + Realtek RTL8191SEvA Wireless LANUbuntu 12.103.5.0-14-generic (x86_64)Unity 6.4.0X Server 1.13.0intel 2.20.71.4 Mesa 8.1-develClang 3.0-6ubuntu3GCC 4.7ext41366x768ProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionIntel Atom D525 Compiler Testing BenchmarksSystem Logs- Compiz was running on this system.- GCC 4.7.1: --build=x86_64-linux-gnu --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-languages=c,c++,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-arch-32=i686 --with-tune=generic -v

LLVM-Clang 3.0 vs. GCC 4.7.1 ComparisonPhoronix Test SuiteBaseline+77.5%+77.5%+155%+155%+232.5%+232.5%+310%+310%310.1%62.1%34.9%19.4%19%11.6%11.3%8.6%4.9%4.6%3.2%G.I.R.1.SP.P.STotal TimeWAV To MP32.F.CElapsed TimeD.L.M.F11.5%M.S.AS.M.M11%P.D.SMonte Carlo7.9%Rhodopsin Protein6.9%J.S.O.R6.2%F.F.TvpxencS.W.P.S3.2%C.S.TSmallptHimeno BenchmarkC-RayLAME MP3 EncodingParallel BZIP2 CompressionCraftySciMarkTimed MAFFT AlignmentSciMarkTimed HMMer SearchSciMarkLAMMPS Molecular Dynamics SimulatorSciMarkSciMarkVP8 libvpx EncodingApache Benchmark7-Zip CompressionLLVM-Clang 3.0GCC 4.7.1

Intel Atom D525 Compiler Testingsmallpt: Global Illumination Renderer; 100 Sampleshimeno: Poisson Pressure Solverc-ray: Total Timeencode-mp3: WAV To MP3compress-pbzip2: 256MB File Compressioncrafty: Elapsed Timescimark2: Dense LU Matrix Factorizationmafft: Multiple Sequence Alignmentscimark2: Sparse Matrix Multiplyhmmer: Pfam Database Searchscimark2: Monte Carlolammps: Rhodopsin Proteinscimark2: Jacobi Successive Over-Relaxationscimark2: Fast Fourier Transformvpxenc: vpxencapache: Static Web Page Servingcompress-7zip: Compress Speed Testtscp: AI Chess Performanceffte: N=64, 1D Complex FFT Routineopenssl: RSA 4096-bit Performanceencode-flac: WAV To FLACLLVM-Clang 3.0GCC 4.7.1133785.38490.12110.59106.75517.85202.3367.35189.46110.4669.54426.79341.0326.462.853135.732030117819943.537.6050.29326138.38363.4492.6389.67463.93181.5360.53170.67101.7364.45456.43321.0427.762.983039.212094118279943.957.60OpenBenchmarking.org

Smallpt

Smallpt is a C++ global illumination renderer written in less than 100 lines of code. Global illumination is done via unbiased Monte Carlo path tracing and there is multi-threading support via the OpenMP library. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesLLVM-Clang 3.0GCC 4.7.130060090012001500SE +/- 0.33, N = 3SE +/- 0.33, N = 313373261. (CXX) g++ options: -fopenmp -O3 -march=native
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesLLVM-Clang 3.0GCC 4.7.12004006008001000Min: 1337 / Avg: 1337.33 / Max: 1338Min: 325 / Avg: 325.67 / Max: 3261. (CXX) g++ options: -fopenmp -O3 -march=native

Himeno Benchmark

The Himeno benchmark is a linear solver of pressure Poisson using a point-Jacobi method. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLLVM-Clang 3.0GCC 4.7.1306090120150SE +/- 1.69, N = 6SE +/- 0.06, N = 385.38138.381. (CC) gcc options: -O3 -march=native
OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLLVM-Clang 3.0GCC 4.7.1306090120150Min: 79.74 / Avg: 85.38 / Max: 90Min: 138.27 / Avg: 138.38 / Max: 138.461. (CC) gcc options: -O3 -march=native

C-Ray

This is a test of C-Ray, a simple raytracer designed to test the floating-point CPU performance. This test is multi-threaded (16 threads per core), will shoot 8 rays per pixel for anti-aliasing, and will generate a 1600 x 1200 image. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeLLVM-Clang 3.0GCC 4.7.1110220330440550SE +/- 0.08, N = 3SE +/- 0.06, N = 3490.12363.441. (CC) gcc options: -lm -lpthread -O3 -march=native
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeLLVM-Clang 3.0GCC 4.7.190180270360450Min: 489.98 / Avg: 490.12 / Max: 490.27Min: 363.32 / Avg: 363.44 / Max: 363.521. (CC) gcc options: -lm -lpthread -O3 -march=native

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 MP3LLVM-Clang 3.0GCC 4.7.120406080100SE +/- 0.07, N = 5SE +/- 0.04, N = 5110.5992.63
OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3LLVM-Clang 3.0GCC 4.7.120406080100Min: 110.43 / Avg: 110.59 / Max: 110.86Min: 92.52 / Avg: 92.63 / Max: 92.74

Parallel BZIP2 Compression

OpenBenchmarking.orgSeconds, Fewer Is BetterParallel BZIP2 Compression 1.0.5256MB File CompressionLLVM-Clang 3.0GCC 4.7.120406080100SE +/- 0.83, N = 3SE +/- 1.38, N = 3106.7589.671. (CXX) g++ options: -O2 -pthread -lpthread -lbz2
OpenBenchmarking.orgSeconds, Fewer Is BetterParallel BZIP2 Compression 1.0.5256MB File CompressionLLVM-Clang 3.0GCC 4.7.120406080100Min: 105.2 / Avg: 106.75 / Max: 108.05Min: 87.02 / Avg: 89.67 / Max: 91.681. (CXX) g++ options: -O2 -pthread -lpthread -lbz2

Crafty

OpenBenchmarking.orgSeconds, Fewer Is BetterCrafty 23.4Elapsed TimeLLVM-Clang 3.0GCC 4.7.1110220330440550SE +/- 0.63, N = 3SE +/- 0.72, N = 3517.85463.931. (CC) gcc options: -lstdc++ -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterCrafty 23.4Elapsed TimeLLVM-Clang 3.0GCC 4.7.190180270360450Min: 517.12 / Avg: 517.85 / Max: 519.1Min: 462.56 / Avg: 463.93 / Max: 4651. (CC) gcc options: -lstdc++ -lm

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 4.7.1LLVM-Clang 3.04080120160200SE +/- 0.24, N = 4SE +/- 0.18, N = 4181.53202.33
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 4.7.1LLVM-Clang 3.04080120160200Min: 181.16 / Avg: 181.53 / Max: 182.15Min: 202.02 / Avg: 202.33 / Max: 202.63

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentLLVM-Clang 3.0GCC 4.7.11530456075SE +/- 1.10, N = 6SE +/- 0.12, N = 367.3560.531. (CC) gcc options: -O3 -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentLLVM-Clang 3.0GCC 4.7.11326395265Min: 61.86 / Avg: 67.35 / Max: 68.67Min: 60.31 / Avg: 60.53 / Max: 60.711. (CC) gcc options: -O3 -lm -lpthread

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 4.7.1LLVM-Clang 3.04080120160200SE +/- 0.23, N = 4SE +/- 0.17, N = 4170.67189.46
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 4.7.1LLVM-Clang 3.0306090120150Min: 170.1 / Avg: 170.67 / Max: 171.24Min: 188.93 / Avg: 189.46 / Max: 189.63

Timed HMMer Search

This test searches through the Pfam database of profile hidden markov models. The search finds the domain structure of Drosophila Sevenless protein. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLLVM-Clang 3.0GCC 4.7.120406080100SE +/- 0.40, N = 3SE +/- 0.88, N = 3110.46101.731. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLLVM-Clang 3.0GCC 4.7.120406080100Min: 110 / Avg: 110.46 / Max: 111.25Min: 100.51 / Avg: 101.73 / Max: 103.431. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 4.7.1LLVM-Clang 3.01530456075SE +/- 0.08, N = 4SE +/- 0.00, N = 464.4569.54
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 4.7.1LLVM-Clang 3.01326395265Min: 64.22 / Avg: 64.45 / Max: 64.53Min: 69.54 / Avg: 69.54 / Max: 69.54

LAMMPS Molecular Dynamics Simulator

OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinGCC 4.7.1LLVM-Clang 3.0100200300400500SE +/- 0.67, N = 3SE +/- 0.64, N = 3456.43426.791. (CXX) g++ options: -lfftw -lmpich
OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinGCC 4.7.1LLVM-Clang 3.080160240320400Min: 455.11 / Avg: 456.43 / Max: 457.2Min: 425.7 / Avg: 426.79 / Max: 427.911. (CXX) g++ options: -lfftw -lmpich

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 4.7.1LLVM-Clang 3.070140210280350SE +/- 0.64, N = 4SE +/- 0.38, N = 4321.04341.03
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 4.7.1LLVM-Clang 3.060120180240300Min: 319.36 / Avg: 321.04 / Max: 322.04Min: 340.65 / Avg: 341.03 / Max: 342.17

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM-Clang 3.0GCC 4.7.1714212835SE +/- 0.05, N = 4SE +/- 0.03, N = 426.4627.76
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLLVM-Clang 3.0GCC 4.7.1612182430Min: 26.34 / Avg: 26.46 / Max: 26.54Min: 27.71 / Avg: 27.76 / Max: 27.85

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 0.9.7-p1vpxencLLVM-Clang 3.0GCC 4.7.10.67051.3412.01152.6823.3525SE +/- 0.01, N = 3SE +/- 0.02, N = 32.852.981. (CC) gcc options: -m64 -lvpx -lm -lpthread
OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 0.9.7-p1vpxencLLVM-Clang 3.0GCC 4.7.1246810Min: 2.84 / Avg: 2.85 / Max: 2.86Min: 2.96 / Avg: 2.98 / Max: 3.021. (CC) gcc options: -m64 -lvpx -lm -lpthread

Apache Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingGCC 4.7.1LLVM-Clang 3.07001400210028003500SE +/- 6.86, N = 3SE +/- 2.91, N = 33039.213135.731. (CC) gcc options: -pthread -O3 -march=native -lm -lrt -lcrypt -lpthread -ldl
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingGCC 4.7.1LLVM-Clang 3.05001000150020002500Min: 3025.52 / Avg: 3039.21 / Max: 3046.82Min: 3132.37 / Avg: 3135.73 / Max: 3141.531. (CC) gcc options: -pthread -O3 -march=native -lm -lrt -lcrypt -lpthread -ldl

7-Zip Compression

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestLLVM-Clang 3.0GCC 4.7.1400800120016002000SE +/- 4.93, N = 3SE +/- 2.40, N = 3203020941. (CXX) g++ options: -pipe -lpthread
OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestLLVM-Clang 3.0GCC 4.7.1400800120016002000Min: 2021 / Avg: 2030 / Max: 2038Min: 2089 / Avg: 2093.67 / Max: 20971. (CXX) g++ options: -pipe -lpthread

TSCP

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceLLVM-Clang 3.0GCC 4.7.130K60K90K120K150KSE +/- 121.45, N = 5SE +/- 27.43, N = 5117819118279
OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceLLVM-Clang 3.0GCC 4.7.120K40K60K80K100KMin: 117336 / Avg: 117818.6 / Max: 117990Min: 118192 / Avg: 118278.6 / Max: 118345

FFTE

FFTE is a package by Daisuke Takahashi to compute Discrete Fourier Transforms of 1-, 2- and 3- dimensional sequences of length (2^p)*(3^q)*(5^r). Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMFLOPS, More Is BetterFFTE 5.0Test: N=64, 1D Complex FFT RoutineLLVM-Clang 3.0GCC 4.7.12004006008001000SE +/- 0.43, N = 3SE +/- 0.32, N = 3943.53943.951. (F9X) gfortran options: -O3 -fomit-frame-pointer -fopenmp -lmpichf90 -lmpich -lopa -lmpl -lrt -lcr -lpthread
OpenBenchmarking.orgMFLOPS, More Is BetterFFTE 5.0Test: N=64, 1D Complex FFT RoutineLLVM-Clang 3.0GCC 4.7.1170340510680850Min: 942.8 / Avg: 943.53 / Max: 944.27Min: 943.39 / Avg: 943.95 / Max: 944.491. (F9X) gfortran options: -O3 -fomit-frame-pointer -fopenmp -lmpichf90 -lmpich -lopa -lmpl -lrt -lcr -lpthread

OpenSSL

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.0eRSA 4096-bit PerformanceLLVM-Clang 3.0GCC 4.7.1246810SE +/- 0.00, N = 4SE +/- 0.00, N = 47.607.601. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl
OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.0eRSA 4096-bit PerformanceLLVM-Clang 3.0GCC 4.7.13691215Min: 7.6 / Avg: 7.6 / Max: 7.6Min: 7.6 / Avg: 7.6 / Max: 7.61. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACLLVM-Clang 3.01122334455SE +/- 0.05, N = 550.291. (CXX) g++ options: -O3 -march=native -logg -lm