ARMv7 Cortex A9 GCC 4.7 LTO Link-Time Optimizations
GCC 4.7 benchmarks of GCC 4.7.2 LTO. Testing the compiler link-time optimization performance with the -flto CFLAGS/CXXFLAGS. Benchmarking from a NVIDIA tegra 3 Cardhu quad-core ARM Cortex-A9 tablet. Benchmarking for future article on Phoronix by Michael Larabel.
Stock
Compiler Notes: --build=arm-linux-gnueabihf --disable-cloog-version-check --disable-libitm --disable-ppl-version-check --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-cloog-backend=ppl --enable-gnu-unique-object --enable-languages=c,c++,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --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-cloog --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand
GCC LTO
Processor: ARMv7 rev 9 @ 1.40GHz (4 Cores), Motherboard: cardhu, Memory: 1024MB, Disk: 16GB SEM16G + 32GB SD32G, Graphics: NVIDIA TEGRA, Network: Realtek RTL8111/8168B
OS: Ubuntu 13.04, Kernel: 3.1.10-gfc993d9 (armv7l), Compiler: GCC 4.7, File-System: ext3, Screen Resolution: 1366x1536
VP8 libvpx Encoding
GraphicsMagick
Timed ImageMagick Compilation
Timed PHP Compilation
FLAC Audio Encoding
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.
FFmpeg
Open FMM Nero2D
Stock
Compiler Notes: --build=arm-linux-gnueabihf --disable-cloog-version-check --disable-libitm --disable-ppl-version-check --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-cloog-backend=ppl --enable-gnu-unique-object --enable-languages=c,c++,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --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-cloog --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand
Testing initiated at 26 February 2013 10:08 by user ubuntu.
GCC LTO
Processor: ARMv7 rev 9 @ 1.40GHz (4 Cores), Motherboard: cardhu, Memory: 1024MB, Disk: 16GB SEM16G + 32GB SD32G, Graphics: NVIDIA TEGRA, Network: Realtek RTL8111/8168B
OS: Ubuntu 13.04, Kernel: 3.1.10-gfc993d9 (armv7l), Compiler: GCC 4.7, File-System: ext3, Screen Resolution: 1366x1536
Compiler Notes: --build=arm-linux-gnueabihf --disable-cloog-version-check --disable-libitm --disable-ppl-version-check --disable-sjlj-exceptions --disable-werror --enable-checking=release --enable-clocale=gnu --enable-cloog-backend=ppl --enable-gnu-unique-object --enable-languages=c,c++,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --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-cloog --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb -v
Processor Notes: Scaling Governor: ondemand
Testing initiated at 28 February 2013 06:04 by user ubuntu.