A Compiler comparison via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1502143-DE-RASPBERRY02.
raspberry2ProcessorMotherboardMemoryDiskOSKernelCompilerFile-SystemScreen Resolutionclang 3.0gcc 4.4.7gcc 4.5.3ARMv6-compatible rev 7 @ 0.85GHz (1 Core)BCM2708374MB16GB SDCDebian 7.23.12.31 (armv6l)Clang 3.0-6.2F2FS656x416GCC 4.4.7 + Clang 3.0-6.2GCC 4.5.3 + Clang 3.0-6.2OpenBenchmarking.orgProcessor Details- Scaling Governor: BCM2835 Freq ondemandCompiler Details- gcc 4.4.7: --build=arm-linux-gnueabihf --disable-sjlj-exceptions --enable-checking=release --enable-clocale=gnu --enable-languages=c,c++,fortran --enable-libstdcxx-debug --enable-nls --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv6 --with-float=hard --with-fpu=vfp -v - gcc 4.5.3: --build=arm-linux-gnueabihf --disable-sjlj-exceptions --enable-checking=release --enable-clocale=gnu --enable-gold --enable-languages=c,c++,fortran,objc,obj-c++ --enable-ld=default --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf --with-arch=armv6 --with-float=hard --with-fpu=vfp --with-plugin-ld=ld.gold -v
raspberry2tscp: AI Chess PerformanceDifferenceStandard ErrorStandard Deviationclang 3.0gcc 4.4.7gcc 4.5.3366281.00x23.040.14%377351.03x23.790.14%370221.01x2.150.01%OpenBenchmarking.org
OpenBenchmarking.orgNodes Per Second, More Is BetterTSCP 1.81AI Chess Performanceclang 3.0gcc 4.4.7gcc 4.5.38K16K24K32K40KSE +/- 23.04, N = 5SE +/- 23.79, N = 5SE +/- 2.15, N = 53662837735370221. (CC) gcc options: -march=armv6
Phoronix Test Suite v10.8.4