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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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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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

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

fpu=neon

marm

mtune=cortex-a15

mtune=cortex-a15 marm fpu=neon

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

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 - 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 Suite100%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 Transformencode-flac: WAV To FLACencode-ogg: WAV To Oggprimesieve: 1e12 Prime Number Generationvpxenc: vpxencx264: H.264 Video Encodingc-ray: Total Timesmallpt: Global Illumination Renderer; 100 SamplesGCC 4.6.3GCC 4.7.2fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neon37.6519.8131.50957.911.2110.62447.38120844.6219.1831.75810.271.2910.83348.61118147.4616.4332.30841.751.3311.04315.31119040.6918.5231.83837.561.3010.68315.86117240.8419.2631.62820.771.3310.79327.62118942.4016.6032.16816.391.4210.32332.871172OpenBenchmarking.org

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformGCC 4.6.3marmmtune=cortex-a15mtune=cortex-a15 marm fpu=neonGCC 4.7.2fpu=neon1122334455SE +/- 0.82, N = 4SE +/- 0.88, N = 4SE +/- 0.46, N = 4SE +/- 0.73, N = 4SE +/- 0.29, N = 4SE +/- 0.63, N = 437.6540.6940.8442.4044.6247.46

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACGCC 4.6.3mtune=cortex-a15GCC 4.7.2marmmtune=cortex-a15 marm fpu=neonfpu=neon510152025SE +/- 0.04, N = 5SE +/- 0.28, N = 5SE +/- 0.06, N = 5SE +/- 0.05, N = 5SE +/- 0.20, N = 10SE +/- 0.04, N = 519.8119.2619.1818.5216.6016.43-O2-mtune=cortex-a15-O2-marm-mtune=cortex-a15 -marm -mfpu=neon-mfpu=neon1. (CXX) g++ options: -logg -lm

Ogg Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterOgg Encoding 1.3.0WAV To Oggfpu=neonmtune=cortex-a15 marm fpu=neonmarmGCC 4.7.2mtune=cortex-a15GCC 4.6.3816243240SE +/- 0.16, N = 5SE +/- 0.27, N = 5SE +/- 0.31, N = 5SE +/- 0.16, N = 5SE +/- 0.14, N = 5SE +/- 0.13, N = 532.3032.1631.8331.7531.6231.50-mfpu=neon-mtune=cortex-a15 -marm -mfpu=neon-marm-mtune=cortex-a151. (CC) gcc options: -O2 -ffast-math -fsigned-char -lm -logg

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.01e12 Prime Number GenerationGCC 4.6.3fpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neonGCC 4.7.22004006008001000SE +/- 6.82, N = 3SE +/- 12.17, N = 3SE +/- 10.31, N = 3SE +/- 14.31, N = 3SE +/- 14.22, N = 4SE +/- 9.65, N = 3957.91841.75837.56820.77816.39810.271. (CXX) g++ options: -O2 -fopenmp

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencGCC 4.6.3GCC 4.7.2marmfpu=neonmtune=cortex-a15mtune=cortex-a15 marm fpu=neon0.31950.6390.95851.2781.5975SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 31.211.291.301.331.331.421. (CC) gcc options: -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video Encodingmtune=cortex-a15 marm fpu=neonGCC 4.6.3marmmtune=cortex-a15GCC 4.7.2fpu=neon3691215SE +/- 0.11, N = 3SE +/- 0.08, N = 3SE +/- 0.21, N = 3SE +/- 0.07, N = 3SE +/- 0.06, N = 3SE +/- 0.19, N = 310.3210.6210.6810.7910.8311.04

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 4.7.2mtune=cortex-a15 marm fpu=neonmtune=cortex-a15marmfpu=neon100200300400500SE +/- 7.03, N = 6SE +/- 16.52, N = 6SE +/- 2.85, N = 3SE +/- 0.64, N = 3SE +/- 0.45, N = 3SE +/- 1.63, N = 3447.38348.61332.87327.62315.86315.31-mtune=cortex-a15 -marm -mfpu=neon-mtune=cortex-a15-marm-mfpu=neon1. (CC) gcc options: -lm -lpthread -O3

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 4.6.3fpu=neonmtune=cortex-a15GCC 4.7.2mtune=cortex-a15 marm fpu=neonmarm30060090012001500SE +/- 1.45, N = 3SE +/- 2.08, N = 3SE +/- 1.76, N = 3SE +/- 2.08, N = 3SE +/- 2.52, N = 3SE +/- 3.46, N = 3120811901189118111721172-mfpu=neon-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon-marm1. (CXX) g++ options: -fopenmp

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

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.

fpu=neon

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 26 November 2012 23:36 by user user.

marm

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 27 November 2012 04:27 by user user.

mtune=cortex-a15

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 27 November 2012 13:45 by user user.

mtune=cortex-a15 marm fpu=neon

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 27 November 2012 16:39 by user user.