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 1212044-RA-CORTEX15G86
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Audio Encoding 2 Tests
C/C++ Compiler Tests 5 Tests
CPU Massive 5 Tests
Creator Workloads 6 Tests
Encoding 4 Tests
Multi-Core 5 Tests
Renderers 2 Tests
Server CPU Tests 2 Tests
Single-Threaded 3 Tests
Video Encoding 2 Tests

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GCC 4.6.3
November 24 2012
 
GCC 4.7.2
November 24 2012
 
fpu=neon
November 26 2012
 
marm
November 27 2012
 
mtune=cortex-a15
November 27 2012
 
mtune=cortex-a15 marm fpu=neon
November 27 2012
 
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ARM Cortex A15 GCC Compiler BenchmarksOpenBenchmarking.orgPhoronix Test Suite 10.2.2Exynos 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 - fpu=neon: --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 - marm: --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 - mtune=cortex-a15: --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 - mtune=cortex-a15 marm fpu=neon: --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 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neonResult OverviewPhoronix Test Suite 10.2.2100%110%121%131%C-RaySciMarkFLAC Audio EncodingPrimesieveVP8 libvpx Encodingx264SmallptOgg EncodingTotal TimeF.F.TWAV To FLAC1.P.N.GvpxencH.2.V.EG.I.R.1.SWAV To Ogg

ARM Cortex A15 GCC Compiler Benchmarksscimark2: Fast Fourier Transformvpxenc: vpxencx264: H.264 Video Encodingc-ray: Total Timeprimesieve: 1e12 Prime Number Generationsmallpt: Global Illumination Renderer; 100 Samplesencode-flac: WAV To FLACencode-ogg: WAV To OggGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon37.651.2110.62447.38957.91120819.8131.5044.621.2910.83348.61810.27118119.1831.7547.461.3311.04315.31841.75119016.4332.3040.691.3010.68315.86837.56117218.5231.8340.841.3310.79327.62820.77118919.2631.6242.401.4210.32332.87816.39117216.6032.16OpenBenchmarking.org

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon1122334455SE +/- 0.82, N = 4SE +/- 0.29, N = 4SE +/- 0.63, N = 4SE +/- 0.88, N = 4SE +/- 0.46, N = 4SE +/- 0.73, N = 437.6544.6247.4640.6940.8442.40
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon1020304050Min: 36.5 / Avg: 37.65 / Max: 40.06Min: 43.83 / Avg: 44.62 / Max: 45.13Min: 46.5 / Avg: 47.46 / Max: 49.29Min: 38.47 / Avg: 40.69 / Max: 42.78Min: 39.47 / Avg: 40.84 / Max: 41.46Min: 40.21 / Avg: 42.4 / Max: 43.3

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon0.31950.6390.95851.2781.5975SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 31.211.291.331.301.331.421. (CC) gcc options: -lvpx -lm -lpthread
OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon246810Min: 1.21 / Avg: 1.21 / Max: 1.22Min: 1.28 / Avg: 1.29 / Max: 1.3Min: 1.33 / Avg: 1.33 / Max: 1.34Min: 1.29 / Avg: 1.3 / Max: 1.31Min: 1.32 / Avg: 1.33 / Max: 1.33Min: 1.4 / Avg: 1.42 / Max: 1.441. (CC) gcc options: -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video EncodingGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon3691215SE +/- 0.08, N = 3SE +/- 0.06, N = 3SE +/- 0.19, N = 3SE +/- 0.21, N = 3SE +/- 0.07, N = 3SE +/- 0.11, N = 310.6210.8311.0410.6810.7910.32
OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video EncodingGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon3691215Min: 10.53 / Avg: 10.62 / Max: 10.77Min: 10.75 / Avg: 10.83 / Max: 10.94Min: 10.68 / Avg: 11.04 / Max: 11.32Min: 10.29 / Avg: 10.68 / Max: 10.99Min: 10.67 / Avg: 10.79 / Max: 10.92Min: 10.15 / Avg: 10.32 / Max: 10.53

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 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon100200300400500SE +/- 7.03, N = 6SE +/- 16.52, N = 6SE +/- 1.63, N = 3SE +/- 0.45, N = 3SE +/- 0.64, N = 3SE +/- 2.85, N = 3447.38348.61315.31315.86327.62332.87-mfpu=neon-marm-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon1. (CC) gcc options: -lm -lpthread -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon80160240320400Min: 432.21 / Avg: 447.38 / Max: 472.13Min: 309.91 / Avg: 348.61 / Max: 409.94Min: 312.91 / Avg: 315.31 / Max: 318.43Min: 315.39 / Avg: 315.86 / Max: 316.75Min: 326.34 / Avg: 327.62 / Max: 328.4Min: 329.31 / Avg: 332.87 / Max: 338.511. (CC) gcc options: -lm -lpthread -O3

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.01e12 Prime Number GenerationGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon2004006008001000SE +/- 6.82, N = 3SE +/- 9.65, N = 3SE +/- 12.17, N = 3SE +/- 10.31, N = 3SE +/- 14.31, N = 3SE +/- 14.22, N = 4957.91810.27841.75837.56820.77816.391. (CXX) g++ options: -O2 -fopenmp
OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.01e12 Prime Number GenerationGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon2004006008001000Min: 946.77 / Avg: 957.91 / Max: 970.31Min: 798.88 / Avg: 810.27 / Max: 829.46Min: 818.78 / Avg: 841.75 / Max: 860.22Min: 820.65 / Avg: 837.56 / Max: 856.23Min: 792.36 / Avg: 820.77 / Max: 837.98Min: 781.21 / Avg: 816.39 / Max: 840.291. (CXX) g++ options: -O2 -fopenmp

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 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon30060090012001500SE +/- 1.45, N = 3SE +/- 2.08, N = 3SE +/- 2.08, N = 3SE +/- 3.46, N = 3SE +/- 1.76, N = 3SE +/- 2.52, N = 3120811811190117211891172-mfpu=neon-marm-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon1. (CXX) g++ options: -fopenmp
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon2004006008001000Min: 1205 / Avg: 1207.67 / Max: 1210Min: 1177 / Avg: 1181 / Max: 1184Min: 1186 / Avg: 1190 / Max: 1193Min: 1166 / Avg: 1172 / Max: 1178Min: 1186 / Avg: 1188.67 / Max: 1192Min: 1167 / Avg: 1172 / Max: 11751. (CXX) g++ options: -fopenmp

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon510152025SE +/- 0.04, N = 5SE +/- 0.06, N = 5SE +/- 0.04, N = 5SE +/- 0.05, N = 5SE +/- 0.28, N = 5SE +/- 0.20, N = 1019.8119.1816.4318.5219.2616.60-O2-O2-mfpu=neon-marm-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon1. (CXX) g++ options: -logg -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon510152025Min: 19.71 / Avg: 19.81 / Max: 19.95Min: 19.01 / Avg: 19.18 / Max: 19.39Min: 16.34 / Avg: 16.43 / Max: 16.51Min: 18.44 / Avg: 18.52 / Max: 18.68Min: 18.92 / Avg: 19.26 / Max: 20.39Min: 16.33 / Avg: 16.6 / Max: 18.381. (CXX) g++ options: -logg -lm

Ogg Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterOgg Encoding 1.3.0WAV To OggGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon816243240SE +/- 0.13, N = 5SE +/- 0.16, N = 5SE +/- 0.16, N = 5SE +/- 0.31, N = 5SE +/- 0.14, N = 5SE +/- 0.27, N = 531.5031.7532.3031.8331.6232.16-mfpu=neon-marm-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon1. (CC) gcc options: -O2 -ffast-math -fsigned-char -lm -logg
OpenBenchmarking.orgSeconds, Fewer Is BetterOgg Encoding 1.3.0WAV To OggGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon714212835Min: 31.26 / Avg: 31.5 / Max: 31.87Min: 31.24 / Avg: 31.75 / Max: 32.06Min: 32 / Avg: 32.3 / Max: 32.86Min: 31.25 / Avg: 31.83 / Max: 32.93Min: 31.24 / Avg: 31.62 / Max: 31.98Min: 31.28 / Avg: 32.16 / Max: 32.891. (CC) gcc options: -O2 -ffast-math -fsigned-char -lm -logg