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 Benchmarksvpxenc: vpxencx264: H.264 Video Encodingscimark2: Fast Fourier Transformc-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=neon1.2110.6237.65447.38957.91120819.8131.501.2910.8344.62348.61810.27118119.1831.751.3311.0447.46315.31841.75119016.4332.301.3010.6840.69315.86837.56117218.5231.831.3310.7940.84327.62820.77118919.2631.621.4210.3242.40332.87816.39117216.6032.16OpenBenchmarking.org

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencmtune=cortex-a15 marm fpu=neonmtune=cortex-a15fpu=neonmarmGCC 4.7.2GCC 4.6.30.31950.6390.95851.2781.5975SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 31.421.331.331.301.291.211. (CC) gcc options: -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2012-10-03H.264 Video Encodingfpu=neonGCC 4.7.2mtune=cortex-a15marmGCC 4.6.3mtune=cortex-a15 marm fpu=neon3691215SE +/- 0.19, N = 3SE +/- 0.06, N = 3SE +/- 0.07, N = 3SE +/- 0.21, N = 3SE +/- 0.08, N = 3SE +/- 0.11, N = 311.0410.8310.7910.6810.6210.32

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier Transformfpu=neonGCC 4.7.2mtune=cortex-a15 marm fpu=neonmtune=cortex-a15marmGCC 4.6.31122334455SE +/- 0.63, N = 4SE +/- 0.29, N = 4SE +/- 0.73, N = 4SE +/- 0.46, N = 4SE +/- 0.88, N = 4SE +/- 0.82, N = 447.4644.6242.4040.8440.6937.65

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 Timefpu=neonmarmmtune=cortex-a15mtune=cortex-a15 marm fpu=neonGCC 4.7.2GCC 4.6.3100200300400500SE +/- 1.63, N = 3SE +/- 0.45, N = 3SE +/- 0.64, N = 3SE +/- 2.85, N = 3SE +/- 16.52, N = 6SE +/- 7.03, N = 6315.31315.86327.62332.87348.61447.38-mfpu=neon-marm-mtune=cortex-a15-mtune=cortex-a15 -marm -mfpu=neon1. (CC) gcc options: -lm -lpthread -O3

Primesieve

OpenBenchmarking.orgSeconds, Fewer Is BetterPrimesieve 4.01e12 Prime Number GenerationGCC 4.7.2mtune=cortex-a15 marm fpu=neonmtune=cortex-a15marmfpu=neonGCC 4.6.32004006008001000SE +/- 9.65, N = 3SE +/- 14.22, N = 4SE +/- 14.31, N = 3SE +/- 10.31, N = 3SE +/- 12.17, N = 3SE +/- 6.82, N = 3810.27816.39820.77837.56841.75957.911. (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 Samplesmarmmtune=cortex-a15 marm fpu=neonGCC 4.7.2mtune=cortex-a15fpu=neonGCC 4.6.330060090012001500SE +/- 3.46, N = 3SE +/- 2.52, N = 3SE +/- 2.08, N = 3SE +/- 1.76, N = 3SE +/- 2.08, N = 3SE +/- 1.45, N = 3117211721181118911901208-marm-mtune=cortex-a15 -marm -mfpu=neon-mtune=cortex-a15-mfpu=neon1. (CXX) g++ options: -fopenmp

FLAC Audio Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.2.1WAV To FLACfpu=neonmtune=cortex-a15 marm fpu=neonmarmGCC 4.7.2mtune=cortex-a15GCC 4.6.3510152025SE +/- 0.04, N = 5SE +/- 0.20, N = 10SE +/- 0.05, N = 5SE +/- 0.06, N = 5SE +/- 0.28, N = 5SE +/- 0.04, N = 516.4316.6018.5219.1819.2619.81-mfpu=neon-mtune=cortex-a15 -marm -mfpu=neon-marm-O2-mtune=cortex-a15-O21. (CXX) g++ options: -logg -lm

Ogg Encoding

OpenBenchmarking.orgSeconds, Fewer Is BetterOgg Encoding 1.3.0WAV To OggGCC 4.6.3mtune=cortex-a15GCC 4.7.2marmmtune=cortex-a15 marm fpu=neonfpu=neon816243240SE +/- 0.13, N = 5SE +/- 0.14, N = 5SE +/- 0.16, N = 5SE +/- 0.31, N = 5SE +/- 0.27, N = 5SE +/- 0.16, N = 531.5031.6231.7531.8332.1632.30-mtune=cortex-a15-marm-mtune=cortex-a15 -marm -mfpu=neon-mfpu=neon1. (CC) gcc options: -O2 -ffast-math -fsigned-char -lm -logg

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.