GCC 4.8 Link-Time Optimization LTO

Prelimary test data for a future article.

HTML result view exported from: https://openbenchmarking.org/result/1302087-FO-GCC48LINK37&sro&grw.

ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionGCC 4.7.2GCC 4.8.0 Stock LTO Stock LTOIntel Core i7-3770K @ 3.50GHz (8 Cores)ECS Z77H2-A2X v1.0Intel Xeon E3-1200 v2/3rd8192MB60GB OCZ VERTEX2NVIDIA GeForce GTX 550 Ti 1024MB (405/324MHz)Realtek ALC892DELL P2210HRealtek RTL8111/8168B + Intel Centrino Advanced-N 6205Ubuntu 13.043.8.0-4-generic (x86_64)Unity 6.6.0X Server 1.13.2nouveau 1.0.63.0 Mesa 9.0.2 Gallium 0.4GCC 4.7ext41920x1080GCC 4.8.0 20130121OpenBenchmarking.orgCompiler Details- GCC 4.7.2: Stock: --build=x86_64-linux-gnu --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-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v - GCC 4.7.2: LTO: --build=x86_64-linux-gnu --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-multiarch --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v - GCC 4.8.0: Stock: --build=x86_64-linux-gnu --disable-browser-plugin --disable-nls --disable-werror --enable-checking=yes --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-objc-gc --enable-plugin --enable-shared --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-snap-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-snap-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-snap-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v - GCC 4.8.0: LTO: --build=x86_64-linux-gnu --disable-browser-plugin --disable-nls --disable-werror --enable-checking=yes --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,fortran,objc,obj-c++ --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-objc-gc --enable-plugin --enable-shared --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-snap-amd64/jre --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-snap-amd64 --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-snap-amd64 --with-multilib-list=m32,m64,mx32 --with-tune=generic -v Processor Details- Scaling Governor: ondemand

bullet: Raytestsbullet: 3000 Fallbullet: 1000 Stackbullet: 1000 Convexbullet: 136 Ragdollsbullet: Prim Trimeshbullet: Convex Trimeshscimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationminion: Gracefulminion: Solitaireminion: Quasigroupblake2: Phoronix Test Suite v4.4.0m2encode-mp3: WAV To MP3hmmer: Pfam Database Searchmafft: Multiple Sequence Alignmenthimeno: Poisson Pressure Solverlammps: Rhodopsin Proteinnpb: BT.Anpb: CG.Bnpb: EP.Bnpb: FT.Bnpb: IS.Cnpb: LU.Anpb: MG.Bnpb: SP.Anpb: UA.Arodinia: OpenMP LavaMDrodinia: OpenMP Leukocyterodinia: OpenMP CFD Solverrodinia: OpenMP Streamclusterffte: N=64, 1D Complex FFT Routinemencoder: AVI To LAVCbuild-imagemagick: Time To Compilecompress-7zip: Compress Speed Testbuild-php: Time To Compilecompress-pbzip2: 256MB File Compressionnero2d: Total Timevpxenc: vpxenctachyon: Total Timeffmpeg: H.264 HD To NTSC DVsmallpt: Global Illumination Renderer; 100 Samplesapache: Static Web Page Servingbyte: Dhrystone 2gmpbench: Total TimeGCC 4.7.2GCC 4.8.0 Stock LTO Stock LTO3.395.056.065.923.591.101.38418.62344.672296.312410.551181.4657.4774.60124.645.3313.5910.125.961676.5437.4413953.332919.03274.167686.09205.1314051.296062.566126.8145.05100.0936.9788.5631.465838.2220.5665.822106427.328.091104.0428.0713.3016.973829921.4228580136.733583.503.465.296.326.033.771.151.47419.02334.572277.202410.581180.3257.5974.62125.315.3213.8810.065.671652.5437.4513991.072960.01275.037797.11205.1314113.386283.146190.8945.8499.4336.5587.5430.995857.02135.5121706101.108.521064.0127.9713.4516.883830778.2139569578.133588.503.314.995.895.773.601.081.36555.98328.782220.192399.711180.3259.2773.75124.035.3113.4510.105.721610.6336.0813935.872952.17258.857728.30205.6614146.776216.096119.6845.23100.2437.3689.0931.335899.4120.59250.482089643.757.691092.2927.1013.0616.853830794.7330134631.903581.303.375.447.016.123.951.131.44555.63339.222239.842405.141179.1859.1473.54123.435.3113.6810.045.531709.8736.1613890.392882.45258.417669.98206.5013952.216189.046200.4144.55100.0337.6689.5531.365890.24379.8821158101.717.7527.7313.0416.743830772.1437703356.833572.30OpenBenchmarking.org

Bullet Physics Engine

Test: Raytests

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: RaytestsLTOStock0.77851.5572.33553.1143.8925SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 33.463.393.373.311. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 3000 Fall

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 FallLTOStock1.2242.4483.6724.8966.12SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 35.295.055.444.991. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 1000 Stack

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 StackLTOStock246810SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 36.326.067.015.891. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 1000 Convex

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 ConvexLTOStock246810SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 36.035.926.125.771. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: 136 Ragdolls

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 136 RagdollsLTOStock0.88881.77762.66643.55524.444SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 33.773.593.953.601. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: Prim Trimesh

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Prim TrimeshLTOStock0.25880.51760.77641.03521.294SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.151.101.131.081. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

Bullet Physics Engine

Test: Convex Trimesh

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: Convex TrimeshLTOStock0.33080.66160.99241.32321.654SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.471.381.441.361. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

SciMark

Computational Test: Monte Carlo

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloLTOStock120240360480600SE +/- 0.41, N = 4SE +/- 0.47, N = 4SE +/- 0.41, N = 4SE +/- 0.36, N = 4419.02418.62555.63555.98

SciMark

Computational Test: Fast Fourier Transform

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformLTOStock70140210280350SE +/- 0.83, N = 4SE +/- 0.67, N = 4SE +/- 1.27, N = 4SE +/- 0.79, N = 4334.57344.67339.22328.78

SciMark

Computational Test: Sparse Matrix Multiply

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyLTOStock5001000150020002500SE +/- 6.54, N = 4SE +/- 4.06, N = 4SE +/- 6.76, N = 4SE +/- 10.04, N = 42277.202296.312239.842220.19

SciMark

Computational Test: Dense LU Matrix Factorization

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationLTOStock5001000150020002500SE +/- 5.23, N = 4SE +/- 2.72, N = 4SE +/- 5.18, N = 4SE +/- 2.69, N = 42410.582410.552405.142399.71

SciMark

Computational Test: Jacobi Successive Over-Relaxation

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationLTOStock30060090012001500SE +/- 1.14, N = 4SE +/- 1.31, N = 4SE +/- 0.00, N = 4SE +/- 1.14, N = 41180.321181.461179.181180.32

Minion

Benchmark: Graceful

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 0.15Benchmark: GracefulLTOStock1326395265SE +/- 0.14, N = 3SE +/- 0.14, N = 3SE +/- 0.07, N = 3SE +/- 0.22, N = 357.5957.4759.1459.271. (CXX) g++ options: -O3 -fomit-frame-pointer -rdynamic -lboost_iostreams-mt -lz -lbz2

Minion

Benchmark: Solitaire

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 0.15Benchmark: SolitaireLTOStock20406080100SE +/- 0.18, N = 3SE +/- 0.26, N = 3SE +/- 0.03, N = 3SE +/- 0.33, N = 374.6274.6073.5473.751. (CXX) g++ options: -O3 -fomit-frame-pointer -rdynamic -lboost_iostreams-mt -lz -lbz2

Minion

Benchmark: Quasigroup

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterMinion 0.15Benchmark: QuasigroupLTOStock306090120150SE +/- 0.39, N = 3SE +/- 0.33, N = 3SE +/- 0.20, N = 3SE +/- 0.23, N = 3125.31124.64123.43124.031. (CXX) g++ options: -O3 -fomit-frame-pointer -rdynamic -lboost_iostreams-mt -lz -lbz2

BLAKE2

Phoronix Test Suite v4.4.0m2

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgCycles Per Byte, Fewer Is BetterBLAKE2 20121223Phoronix Test Suite v4.4.0m2LTOStock1.19932.39863.59794.79725.9965SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 35.325.335.315.311. (CC) gcc options: -std=gnu99 -O3 -march=native

LAME MP3 Encoding

WAV To MP3

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3LTOStock48121620SE +/- 0.00, N = 5SE +/- 0.01, N = 5SE +/- 0.04, N = 5SE +/- 0.04, N = 513.8813.5913.6813.45

Timed HMMer Search

Pfam Database Search

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchLTOStock3691215SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 310.0610.1210.0410.101. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

Multiple Sequence Alignment

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentLTOStock1.3412.6824.0235.3646.705SE +/- 0.11, N = 3SE +/- 0.25, N = 6SE +/- 0.16, N = 6SE +/- 0.11, N = 65.675.965.535.721. (CC) gcc options: -O3 -lm -lpthread

Himeno Benchmark

Poisson Pressure Solver

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverLTOStock400800120016002000SE +/- 1.96, N = 3SE +/- 32.51, N = 3SE +/- 2.42, N = 3SE +/- 2.92, N = 31652.541676.541709.871610.631. (CC) gcc options: -O3 -march=native

LAMMPS Molecular Dynamics Simulator

Test: Rhodopsin Protein

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinLTOStock918273645SE +/- 0.07, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 337.4537.4436.1636.081. (CXX) g++ options: -lfftw -lmpich

NAS Parallel Benchmarks

Test / Class: BT.A

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: BT.ALTOStock3K6K9K12K15KSE +/- 16.97, N = 3SE +/- 24.59, N = 3SE +/- 45.52, N = 3SE +/- 28.82, N = 313991.0713953.3313890.3913935.871. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: CG.B

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: CG.BLTOStock6001200180024003000SE +/- 3.33, N = 3SE +/- 11.06, N = 3SE +/- 4.24, N = 3SE +/- 2.35, N = 32960.012919.032882.452952.171. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: EP.B

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: EP.BLTOStock60120180240300SE +/- 0.88, N = 3SE +/- 0.59, N = 3SE +/- 0.28, N = 3SE +/- 0.21, N = 3275.03274.16258.41258.851. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: FT.B

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: FT.BLTOStock2K4K6K8K10KSE +/- 5.22, N = 3SE +/- 12.78, N = 3SE +/- 15.64, N = 3SE +/- 4.07, N = 37797.117686.097669.987728.301. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: IS.C

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: IS.CLTOStock50100150200250SE +/- 0.56, N = 3SE +/- 0.76, N = 3SE +/- 0.14, N = 3SE +/- 0.66, N = 3205.13205.13206.50205.661. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: LU.A

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: LU.ALTOStock3K6K9K12K15KSE +/- 9.98, N = 3SE +/- 36.19, N = 3SE +/- 102.43, N = 3SE +/- 47.45, N = 314113.3814051.2913952.2114146.771. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: MG.B

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: MG.BLTOStock13002600390052006500SE +/- 5.66, N = 3SE +/- 88.03, N = 4SE +/- 3.72, N = 3SE +/- 3.02, N = 36283.146062.566189.046216.091. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: SP.A

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: SP.ALTOStock13002600390052006500SE +/- 17.16, N = 3SE +/- 18.11, N = 3SE +/- 50.41, N = 3SE +/- 38.40, N = 36190.896126.816200.416119.681. (F9X) gfortran options: -fopenmp

NAS Parallel Benchmarks

Test / Class: UA.A

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: UA.ALTOStock1020304050SE +/- 0.12, N = 3SE +/- 0.50, N = 3SE +/- 0.24, N = 3SE +/- 0.37, N = 345.8445.0544.5545.231. (F9X) gfortran options: -fopenmp

Rodinia

Test: OpenMP LavaMD

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterRodinia 2.2Test: OpenMP LavaMDLTOStock20406080100SE +/- 0.16, N = 3SE +/- 0.32, N = 3SE +/- 0.06, N = 3SE +/- 0.27, N = 399.43100.09100.03100.241. (CXX) g++ options: -O3 -fopenmp

Rodinia

Test: OpenMP Leukocyte

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterRodinia 2.2Test: OpenMP LeukocyteLTOStock918273645SE +/- 0.28, N = 3SE +/- 0.23, N = 3SE +/- 0.35, N = 3SE +/- 0.15, N = 336.5536.9737.6637.361. (CXX) g++ options: -O3 -fopenmp

Rodinia

Test: OpenMP CFD Solver

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterRodinia 2.2Test: OpenMP CFD SolverLTOStock20406080100SE +/- 0.07, N = 3SE +/- 0.13, N = 3SE +/- 0.15, N = 3SE +/- 0.14, N = 387.5488.5689.5589.091. (CXX) g++ options: -O3 -fopenmp

Rodinia

Test: OpenMP Streamcluster

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterRodinia 2.2Test: OpenMP StreamclusterLTOStock714212835SE +/- 0.06, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 330.9931.4631.3631.331. (CXX) g++ options: -O3 -fopenmp

FFTE

Test: N=64, 1D Complex FFT Routine

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMFLOPS, More Is BetterFFTE 5.0Test: N=64, 1D Complex FFT RoutineLTOStock13002600390052006500SE +/- 1.25, N = 3SE +/- 17.46, N = 3SE +/- 3.49, N = 3SE +/- 4.86, N = 35857.025838.225890.245899.411. (F9X) gfortran options: -O3 -fomit-frame-pointer -fopenmp -pthread -lmpi_f90 -lmpi_f77 -lmpi -lopen-rte -lopen-pal -ldl -lnsl -lutil -lm

Mencoder

AVI To LAVC

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterMencoder 1.1AVI To LAVCStock510152025SE +/- 0.02, N = 3SE +/- 0.13, N = 320.5620.591. (CC) gcc options: -lm -lpng -lz -lasound -ldl -lpthread -lmad -rdynamic -lXext -lX11 -lXxf86vm -lcaca -lSDL -lGL -lpulse

Timed ImageMagick Compilation

Time To Compile

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterTimed ImageMagick Compilation 6.8.1-10Time To CompileLTOStock80160240320400SE +/- 0.21, N = 3SE +/- 0.05, N = 3SE +/- 0.65, N = 3SE +/- 0.12, N = 3135.5165.82379.88250.48

7-Zip Compression

Compress Speed Test

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestLTOStock5K10K15K20K25KSE +/- 337.80, N = 3SE +/- 280.19, N = 6SE +/- 100.21, N = 3SE +/- 219.82, N = 3217062106421158208961. (CXX) g++ options: -pipe -lpthread

Timed PHP Compilation

Time To Compile

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileLTOStock20406080100SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.39, N = 3SE +/- 0.10, N = 3101.1027.32101.7143.751. (CC) gcc options: -O3 -march=native -pedantic -ldl -lpthread -lz -lm

Parallel BZIP2 Compression

256MB File Compression

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterParallel BZIP2 Compression 1.1.6256MB File CompressionLTOStock246810SE +/- 0.08, N = 3SE +/- 0.16, N = 6SE +/- 0.11, N = 3SE +/- 0.14, N = 38.528.097.757.691. (CXX) g++ options: -O2 -pthread -lbz2 -lpthread

Open FMM Nero2D

Total Time

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterOpen FMM Nero2D 2.0.2Total TimeLTOStock20040060080010001064.011104.041092.291. (CXX) g++ options: -O3 -march=native -lfftw3 -llapack -lblas -lgfortran -lquadmath -lm

VP8 libvpx Encoding

vpxenc

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 1.1.0vpxencLTOStock714212835SE +/- 0.21, N = 3SE +/- 0.10, N = 3SE +/- 0.21, N = 3SE +/- 0.11, N = 327.9728.0727.7327.101. (CC) gcc options: -m64 -lvpx -lm -lpthread

Tachyon

Total Time

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterTachyon 0.98.9Total TimeLTOStock3691215SE +/- 0.18, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 313.4513.3013.0413.061. (CC) gcc options: -m32 -O3 -fomit-frame-pointer -ffast-math -ltachyon -lm -lpthread

FFmpeg

H.264 HD To NTSC DV

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 1.1H.264 HD To NTSC DVLTOStock48121620SE +/- 0.27, N = 3SE +/- 0.12, N = 3SE +/- 0.06, N = 3SE +/- 0.12, N = 316.8816.9716.7416.851. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lasound -lSDL -lm -pthread -lbz2

Smallpt

Global Illumination Renderer; 100 Samples

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesLTOStock918273645SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3383838381. (CXX) g++ options: -fopenmp -O3 -march=native

Apache Benchmark

Static Web Page Serving

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.3Static Web Page ServingLTOStock7K14K21K28K35KSE +/- 166.35, N = 3SE +/- 459.35, N = 3SE +/- 58.97, N = 3SE +/- 70.91, N = 330778.2129921.4230772.1430794.731. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native

BYTE Unix Benchmark

Computational Test: Dhrystone 2

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgLPS, More Is BetterBYTE Unix Benchmark 3.6Computational Test: Dhrystone 2LTOStock8M16M24M32M40MSE +/- 38182.82, N = 3SE +/- 8172.71, N = 3SE +/- 31887.76, N = 3SE +/- 6456.64, N = 339569578.1328580136.7337703356.8330134631.901. (CC) gcc options: -O3 -march=native

GMPbench

Total Time

GCC 4.7.2GCC 4.8.0OpenBenchmarking.orgGMPbench Score, More Is BetterGMPbench 0.2Total TimeLTOStock80016002400320040003588.503583.503572.303581.301. (CC) gcc options: -O3 -march=native

Phoronix Test Suite v10.8.5