ARM Cortex A15 GCC Compiler Benchmarks

Benchmarks of GCC 4.6.3 vs. GCC 4.7.2 from a Samsung Exynos 5 Dual SoC with ARM Cortex A15 dual-core ARMv7 1.7GHz processor. Cortex A15 ARM compiler benchmarking 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 1211249-RA-CORTEX15G24
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GCC 4.6.3
November 24 2012
 
GCC 4.7.2
November 24 2012
 
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GCC 4.6.3

Processor: Exynos ARMv7 rev 4 @ 1.70GHz (2 Cores), Motherboard: SAMSUNG EXYNOS5 (Flattened Device Tree), Memory: 2048MB, Disk: 16GB SEM16G

OS: Ubuntu 12.04, Kernel: 3.4.0 (armv7l), Desktop: Unity 2D 5.16.0, Display Server: X Server 1.11.3, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1366x768

Compiler Notes: --build=arm-linux-gnueabihf --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-languages=c,c++,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand
System Notes: Python 2.7.3.

GCC 4.7.2

OS: Ubuntu 12.04, Kernel: 3.4.0 (armv7l), Desktop: Unity 2D 5.16.0, Display Server: X Server 1.11.3, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1366x768

Compiler Notes: --build=arm-linux-gnueabihf --disable-libitm --disable-sjlj-exceptions --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-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand

ARM Cortex A15 GCC Compiler BenchmarksOpenBenchmarking.orgPhoronix Test SuiteExynos ARMv7 rev 4 @ 1.70GHz (2 Cores)SAMSUNG EXYNOS5 (Flattened Device Tree)2048MB16GB SEM16GUbuntu 12.043.4.0 (armv7l)Unity 2D 5.16.0X Server 1.11.3GCC 4.6GCC 4.7ext41366x768ProcessorMotherboardMemoryDiskOSKernelDesktopDisplay ServerCompilersFile-SystemScreen ResolutionARM Cortex A15 GCC Compiler Benchmarks PerformanceSystem Logs- GCC 4.6.3: --build=arm-linux-gnueabihf --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-languages=c,c++,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v - GCC 4.7.2: --build=arm-linux-gnueabihf --disable-libitm --disable-sjlj-exceptions --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-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v - Scaling Governor: ondemand- GCC 4.6.3: Python 2.7.3.

GCC 4.6.3 vs. GCC 4.7.2 ComparisonPhoronix Test SuiteBaseline+7.1%+7.1%+14.2%+14.2%+21.3%+21.3%28.3%18.5%18.2%17.5%6.6%6.5%5.7%4.9%3.5%3.3%3.3%2.3%2%Total TimeF.F.T1.P.N.GN.6.1.C.F.RC.S.T14.6%Time To Compile11.1%C.F.D8%vpxencStatic OMP SpeedupWriteJ.S.O.R5.2%2.F.CMonte Carlo4.5%WAV To MP34.2%D.L.M.FWAV To FLACH.2.H.T.N.DG.I.R.1.SH.2.V.EC-RaySciMarkPrimesieveFFTE7-Zip CompressionTimed PHP CompilationDolfynVP8 libvpx EncodingCLOMPCacheBenchSciMarkParallel BZIP2 CompressionSciMarkLAME MP3 EncodingSciMarkFLAC Audio EncodingFFmpegSmallptx264GCC 4.6.3GCC 4.7.2

ARM Cortex A15 GCC Compiler Benchmarkscompress-7zip: Compress Speed Testc-ray: Total Timecachebench: Readcachebench: Writecachebench: Read / Modify / Writeclomp: Static OMP Speedupcrafty: Elapsed Timedolfyn: Computational Fluid Dynamicsffmpeg: H.264 HD To NTSC DVffte: N=64, 1D Complex FFT Routineencode-flac: WAV To FLACgmpbench: Total Timeencode-mp3: WAV To MP3nginx: Static Web Page Servingencode-ogg: WAV To Oggopenssl: RSA 4096-bit Performancecompress-pbzip2: 256MB File Compressionprimesieve: 1e12 Prime Number Generationscimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationsmallpt: Global Illumination Renderer; 100 Samplesbuild-php: Time To Compiletscp: AI Chess Performancevpxenc: vpxencx264: H.264 Video EncodingGCC 4.6.3GCC 4.7.21951447.382570.833521.376979.641.700.06158.91162.541257.0019.81451.2952.303535.7731.501088.41957.91167.9037.65333.34435.03361.971208255.791469681.2110.621703348.612582.333722.677092.441.810.06171.65157.401476.5919.18452.5954.483578.5531.759.9084.30810.27160.6244.62338.23450.12344.101181284.151460961.2910.83OpenBenchmarking.org

7-Zip Compression

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestGCC 4.7.2GCC 4.6.3400800120016002000SE +/- 13.53, N = 3SE +/- 6.69, N = 3170319511. (CXX) g++ options: -pipe -lpthread

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 TimeGCC 4.6.3GCC 4.7.2100200300400500SE +/- 7.03, N = 6SE +/- 16.52, N = 6447.38348.611. (CC) gcc options: -lm -lpthread -O3

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: ReadGCC 4.6.3GCC 4.7.26001200180024003000SE +/- 6.33, N = 3SE +/- 0.34, N = 32570.832582.331. (CC) gcc options: -lrt

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: WriteGCC 4.6.3GCC 4.7.28001600240032004000SE +/- 6.16, N = 3SE +/- 17.55, N = 33521.373722.671. (CC) gcc options: -lrt

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Read / Modify / WriteGCC 4.6.3GCC 4.7.215003000450060007500SE +/- 42.99, N = 3SE +/- 39.96, N = 36979.647092.441. (CC) gcc options: -lrt

CLOMP

CLOMP is the C version of the Livermore OpenMP benchmark developed to measure OpenMP overheads and other performance impacts due to threading in order to influence future system designs. This particular test profile configuration is currently set to look at the OpenMP static schedule speed-up across all available CPU cores using the recommended test configuration. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSpeedup, More Is BetterCLOMP 3.3Static OMP SpeedupGCC 4.6.3GCC 4.7.20.40730.81461.22191.62922.0365SE +/- 0.06, N = 10SE +/- 0.01, N = 51.701.811. (CC) gcc options: --openmp -O3 -lm

Crafty

OpenBenchmarking.orgSeconds, Fewer Is BetterCrafty 23.4Elapsed TimeGCC 4.7.2GCC 4.6.30.01350.0270.04050.0540.0675SE +/- 0.00, N = 6SE +/- 0.01, N = 60.060.061. (CC) gcc options: -lstdc++ -lm

Dolfyn

Dolfyn is a Computational Fluid Dynamics (CFD) code of modern numerical simulation techniques. The Dolfyn test profile measures the execution time of the bundled computational fluid dynamics demos that are bundled with Dolfyn. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterDolfyn 0.527Computational Fluid DynamicsGCC 4.7.2GCC 4.6.34080120160200SE +/- 1.08, N = 3SE +/- 3.19, N = 6171.65158.91

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.0H.264 HD To NTSC DVGCC 4.6.3GCC 4.7.24080120160200SE +/- 0.55, N = 3SE +/- 0.77, N = 3162.54157.401. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lm -pthread -lbz2 -lrt

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 RoutineGCC 4.6.3GCC 4.7.230060090012001500SE +/- 4.27, N = 3SE +/- 2.17, N = 31257.001476.591. (F9X) gfortran options: -O3 -fomit-frame-pointer -fopenmp

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACGCC 4.6.3GCC 4.7.2510152025SE +/- 0.04, N = 5SE +/- 0.06, N = 519.8119.181. (CXX) g++ options: -O2 -logg -lm

GMPbench

OpenBenchmarking.orgGMPbench Score, More Is BetterGMPbench 0.2Total TimeGCC 4.6.3GCC 4.7.2100200300400500451.29452.591. (CC) gcc options: -O3 -fomit-frame-pointer

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 MP3GCC 4.7.2GCC 4.6.31224364860SE +/- 0.05, N = 5SE +/- 0.05, N = 554.4852.30

NGINX Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterNGINX Benchmark 1.0.11Static Web Page ServingGCC 4.6.3GCC 4.7.28001600240032004000SE +/- 9.45, N = 3SE +/- 70.90, N = 33535.773578.551. (CC) gcc options: -lpthread -lcrypt -lcrypto -lz

Ogg Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterOgg Encoding 1.3.0WAV To OggGCC 4.7.2GCC 4.6.3714212835SE +/- 0.16, N = 5SE +/- 0.13, N = 531.7531.501. (CC) gcc options: -O2 -ffast-math -fsigned-char -lm -logg

OpenSSL

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.1cRSA 4096-bit PerformanceGCC 4.7.2GCC 4.6.33691215SE +/- 0.00, N = 3SE +/- 0.00, N = 39.9010.001. (CC) gcc options: -march=armv7-a -O3 -lssl -lcrypto -ldl

Parallel BZIP2 Compression

OpenBenchmarking.orgSeconds, Fewer Is BetterParallel BZIP2 Compression 1.1.6256MB File CompressionGCC 4.6.3GCC 4.7.220406080100SE +/- 0.38, N = 3SE +/- 0.42, N = 388.4184.301. (CXX) g++ options: -O2 -pthread -lbz2 -lpthread

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.01e12 Prime Number GenerationGCC 4.6.3GCC 4.7.22004006008001000SE +/- 6.82, N = 3SE +/- 9.65, N = 3957.91810.271. (CXX) g++ options: -O2 -fopenmp

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloGCC 4.7.2GCC 4.6.34080120160200SE +/- 0.12, N = 4SE +/- 0.13, N = 4160.62167.90

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.6.3GCC 4.7.21020304050SE +/- 0.82, N = 4SE +/- 0.29, N = 437.6544.62

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyGCC 4.6.3GCC 4.7.270140210280350SE +/- 2.68, N = 4SE +/- 0.53, N = 4333.34338.23

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationGCC 4.6.3GCC 4.7.2100200300400500SE +/- 0.92, N = 4SE +/- 2.60, N = 4435.03450.12

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationGCC 4.7.2GCC 4.6.380160240320400SE +/- 1.15, N = 4SE +/- 0.82, N = 4344.10361.97

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 SamplesGCC 4.6.3GCC 4.7.230060090012001500SE +/- 1.45, N = 3SE +/- 2.08, N = 3120811811. (CXX) g++ options: -fopenmp

Timed PHP Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileGCC 4.7.2GCC 4.6.360120180240300SE +/- 0.26, N = 3SE +/- 1.85, N = 3284.15255.791. (CC) gcc options: -O2 -pedantic -ldl -lz -lm

TSCP

OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess PerformanceGCC 4.7.2GCC 4.6.330K60K90K120K150KSE +/- 233.82, N = 5SE +/- 150.74, N = 5146096146968

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencGCC 4.6.3GCC 4.7.20.29030.58060.87091.16121.4515SE +/- 0.00, N = 3SE +/- 0.01, N = 31.211.291. (CC) gcc options: -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video EncodingGCC 4.6.3GCC 4.7.23691215SE +/- 0.08, N = 3SE +/- 0.06, N = 310.6210.83

GCC 4.6.3

Processor: Exynos ARMv7 rev 4 @ 1.70GHz (2 Cores), Motherboard: SAMSUNG EXYNOS5 (Flattened Device Tree), Memory: 2048MB, Disk: 16GB SEM16G

OS: Ubuntu 12.04, Kernel: 3.4.0 (armv7l), Desktop: Unity 2D 5.16.0, Display Server: X Server 1.11.3, Compiler: GCC 4.6, File-System: ext4, Screen Resolution: 1366x768

Compiler Notes: --build=arm-linux-gnueabihf --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-languages=c,c++,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand
System Notes: Python 2.7.3.

Testing initiated at 24 November 2012 03:42 by user user.

GCC 4.7.2

Processor: Exynos ARMv7 rev 4 @ 1.70GHz (2 Cores), Motherboard: SAMSUNG EXYNOS5 (Flattened Device Tree), Memory: 2048MB, Disk: 16GB SEM16G

OS: Ubuntu 12.04, Kernel: 3.4.0 (armv7l), Desktop: Unity 2D 5.16.0, Display Server: X Server 1.11.3, Compiler: GCC 4.7, File-System: ext4, Screen Resolution: 1366x768

Compiler Notes: --build=arm-linux-gnueabihf --disable-libitm --disable-sjlj-exceptions --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-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand

Testing initiated at 24 November 2012 15:13 by user user.