Intel Ivy Bridge GCC 4.7 LTO

Quick benchmarking of GCC 4.7.1 with the Link-Time Optimization (LTO) support. Building the test profiles with CFLAGS/CXXFLAGS that includes -flto for link-time optimizing and then without. Benchmarking by Michael Larabel for a future article looking briefly at the GCC Link-Time Optimization support for some C/C++ programs.

Compare your own system(s) to this result file with the Phoronix Test Suite by running the command: phoronix-test-suite benchmark 1208200-SU-INTELIVYB99
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C/C++ Compiler Tests 5 Tests
CPU Massive 7 Tests
Creator Workloads 3 Tests
Common Kernel Benchmarks 2 Tests
Multi-Core 6 Tests
Renderers 3 Tests
Server 2 Tests
Server CPU Tests 3 Tests

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No LTO
August 20 2012
 
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August 20 2012
 
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Intel Ivy Bridge GCC 4.7 LTOOpenBenchmarking.orgPhoronix Test Suite 10.6.1Intel Core i7-3517UE @ 2.10GHz (4 Cores)CompuLab Intense-PCIntel 3rd Gen Core DRAM8192MB500GB Hitachi HCC54755Intel 3rd Gen CoreRealtek ALC888VA2431Intel 82579LM Gigabit Connection + Realtek RTL8188CE 802.11b/g/nUbuntu 12.103.6.0-999-generic (x86_64)Unity 2D 6.2.0X Server 1.12.1.902 (1.12.2 RC 2)intel 2.20.32.1 Mesa 8.1-devel (git-6a3ac03)GCC 4.7 + LLVM 3.0ext41920x1080ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionIntel Ivy Bridge GCC 4.7 LTO BenchmarksSystem Logs- --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-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-arch-32=i686 --with-tune=generic -v - Scaling Governor: ondemand

No LTO vs. LTO Optimized ComparisonPhoronix Test Suite 10.6.1Baseline+45.5%+45.5%+91%+91%+136.5%+136.5%34.7%10.4%Time To Compile182%Dhrystone 2Total TimeP.R.W.S.S.M4.4%Timed PHP CompilationBYTE Unix BenchmarkOpen FMM Nero2DTTSIOD 3D RendererNo LTOLTO Optimized

Intel Ivy Bridge GCC 4.7 LTObyte: Dhrystone 2ttsiod-renderer: Phong Rendering With Soft-Shadow Mappinghimeno: Poisson Pressure Solverbuild-php: Time To Compilec-ray: Total Timesmallpt: Global Illumination Renderer; 100 Samplescompress-lzma: 256MB File Compressionnero2d: Total Timepgbench: TPC-B Transactions Per Secondapache: Static Web Page ServingNo LTOLTO Optimized19378446.1355.951168.7764.4092.1270181.52577.51123.2516455.6226106973.2353.601177.98181.6191.8370180.37523.28125.1416489.65OpenBenchmarking.org

BYTE Unix Benchmark

OpenBenchmarking.orgLPS, More Is BetterBYTE Unix Benchmark 3.6Computational Test: Dhrystone 2No LTOLTO Optimized6M12M18M24M30MSE +/- 22656.15, N = 3SE +/- 22328.22, N = 319378446.1326106973.23-flto1. (CC) gcc options: -march=native -O3
OpenBenchmarking.orgLPS, More Is BetterBYTE Unix Benchmark 3.6Computational Test: Dhrystone 2No LTOLTO Optimized5M10M15M20M25MMin: 19338244.4 / Avg: 19378446.13 / Max: 19416651.4Min: 26062996.4 / Avg: 26106973.23 / Max: 261356831. (CC) gcc options: -march=native -O3

TTSIOD 3D Renderer

OpenBenchmarking.orgFPS, More Is BetterTTSIOD 3D Renderer 2.2wPhong Rendering With Soft-Shadow MappingNo LTOLTO Optimized1326395265SE +/- 0.17, N = 3SE +/- 0.04, N = 355.9553.601. (CXX) g++ options: -march=native -O3 -fomit-frame-pointer -ffast-math -mtune=native -flto -msse -mrecip -mfpmath=sse -msse2 -mssse3 -lSDL -lstdc++
OpenBenchmarking.orgFPS, More Is BetterTTSIOD 3D Renderer 2.2wPhong Rendering With Soft-Shadow MappingNo LTOLTO Optimized1122334455Min: 55.72 / Avg: 55.95 / Max: 56.28Min: 53.54 / Avg: 53.6 / Max: 53.661. (CXX) g++ options: -march=native -O3 -fomit-frame-pointer -ffast-math -mtune=native -flto -msse -mrecip -mfpmath=sse -msse2 -mssse3 -lSDL -lstdc++

Himeno Benchmark

The Himeno benchmark is a linear solver of pressure Poisson using a point-Jacobi method. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverNo LTOLTO Optimized30060090012001500SE +/- 4.94, N = 3SE +/- 2.96, N = 31168.771177.98-flto1. (CC) gcc options: -O3 -march=native
OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverNo LTOLTO Optimized2004006008001000Min: 1163.4 / Avg: 1168.77 / Max: 1178.64Min: 1172.37 / Avg: 1177.98 / Max: 1182.441. (CC) gcc options: -O3 -march=native

Timed PHP Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileNo LTOLTO Optimized4080120160200SE +/- 0.35, N = 3SE +/- 0.22, N = 364.40181.61-flto1. (CC) gcc options: -march=native -O3 -pedantic -ldl -lz -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileNo LTOLTO Optimized306090120150Min: 63.72 / Avg: 64.4 / Max: 64.89Min: 181.18 / Avg: 181.61 / Max: 181.921. (CC) gcc options: -march=native -O3 -pedantic -ldl -lz -lm

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 TimeNo LTOLTO Optimized20406080100SE +/- 0.43, N = 3SE +/- 0.20, N = 392.1291.83-flto1. (CC) gcc options: -lm -lpthread -O3 -march=native
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeNo LTOLTO Optimized20406080100Min: 91.65 / Avg: 92.12 / Max: 92.97Min: 91.5 / Avg: 91.83 / Max: 92.211. (CC) gcc options: -lm -lpthread -O3 -march=native

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 SamplesNo LTOLTO Optimized1632486480SE +/- 0.00, N = 3SE +/- 0.00, N = 37070-flto1. (CXX) g++ options: -fopenmp -march=native -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesNo LTOLTO Optimized1428425670Min: 70 / Avg: 70 / Max: 70Min: 70 / Avg: 70 / Max: 701. (CXX) g++ options: -fopenmp -march=native -O3

LZMA Compression

OpenBenchmarking.orgSeconds, Fewer Is BetterLZMA Compression256MB File CompressionNo LTOLTO Optimized4080120160200SE +/- 4.30, N = 6SE +/- 4.32, N = 6181.52180.37-flto1. (CC) gcc options: -march=native -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterLZMA Compression256MB File CompressionNo LTOLTO Optimized306090120150Min: 173.28 / Avg: 181.52 / Max: 199.19Min: 174.03 / Avg: 180.37 / Max: 200.241. (CC) gcc options: -march=native -O3

Open FMM Nero2D

OpenBenchmarking.orgSeconds, Fewer Is BetterOpen FMM Nero2D 2.0.2Total TimeNo LTOLTO Optimized120240360480600577.51523.28-flto1. (CXX) g++ options: -march=native -O3 -lfftw3 -llapack -lblas -lgfortran -lquadmath -lm

PostgreSQL pgbench

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 8.4.11TPC-B Transactions Per SecondNo LTOLTO Optimized306090120150SE +/- 0.23, N = 3SE +/- 0.33, N = 3123.25125.14-flto1. (CC) gcc options: -march=native -O3 -fno-strict-aliasing -fwrapv -lpgport -lpq -lcrypt -ldl -lm
OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 8.4.11TPC-B Transactions Per SecondNo LTOLTO Optimized20406080100Min: 122.81 / Avg: 123.25 / Max: 123.58Min: 124.68 / Avg: 125.14 / Max: 125.771. (CC) gcc options: -march=native -O3 -fno-strict-aliasing -fwrapv -lpgport -lpq -lcrypt -ldl -lm

Apache Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingNo LTOLTO Optimized4K8K12K16K20KSE +/- 72.79, N = 3SE +/- 20.76, N = 316455.6216489.65-flto1. (CC) gcc options: -pthread -march=native -O3 -lm -lexpat -lrt -lcrypt -lpthread -ldl
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingNo LTOLTO Optimized3K6K9K12K15KMin: 16310.06 / Avg: 16455.62 / Max: 16530.69Min: 16449.66 / Avg: 16489.65 / Max: 16519.321. (CC) gcc options: -pthread -march=native -O3 -lm -lexpat -lrt -lcrypt -lpthread -ldl