LLVM Clang 3.8 Compiler Benchmarks

Intel Xeon E5-2687W v3 LLVM Clang 3.6 / 3.7 / 3.8 SVN C/C++ compiler benchmarks. Tests by Michael Larabel 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 1602036-GA-LLVMCLANG84
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Clang 3.6.0
February 03 2016
 
Clang 3.7.0
February 03 2016
 
Clang 3.8 SVN
February 03 2016
 
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Clang 3.6.0

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.6.0 + LLVM 3.6.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (16:12:29); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx2
Processor Notes: Scaling Governor: intel_pstate powersave

Clang 3.7.0

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.7.0 + LLVM 3.7.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (14:58:25); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave

Clang 3.8 SVN

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.8.0 (SVN 259676) + LLVM 3.8.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (13:57:10); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave

LLVM Clang 3.8 Compiler BenchmarksOpenBenchmarking.orgPhoronix Test SuiteIntel Xeon E5-2687W v3 @ 3.50GHz (20 Cores)MSI X99S SLI PLUS (MS-7885) v1.0Intel Xeon E7 v3/Xeon16384MBPNY CS1211 120GB + 80GB INTEL SSDSCKGW08AMD FirePro V7900 2048MBRealtek ALC892ASUS PB278Intel ConnectionUbuntu 16.044.5.0-040500rc1-generic (x86_64) 20160124Unity 7.4.0X Server 1.17.3radeon 7.6.13.3 Mesa 11.0.8 Gallium 0.4Clang 3.6.0 + LLVM 3.6.0Clang 3.7.0 + LLVM 3.7.0Clang 3.8.0 (SVN 259676) + LLVM 3.8.0ext42560x1440ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilersFile-SystemScreen ResolutionLLVM Clang 3.8 Compiler Benchmarks PerformanceSystem Logs- Clang 3.6.0: Optimized build; Built Feb 3 2016 (16:12:29); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx2 - Clang 3.7.0: Optimized build; Built Feb 3 2016 (14:58:25); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell - Clang 3.8 SVN: Optimized build; Built Feb 3 2016 (13:57:10); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell - Scaling Governor: intel_pstate powersave

Clang 3.6.0Clang 3.7.0Clang 3.8 SVNLogarithmic Result OverviewPhoronix Test SuiteSmallptTimed HMMer SearchTimed Apache CompilationTimed PHP CompilationHimeno BenchmarkSciMarkRedisApache BenchmarkLAME MP3 EncodingGraphicsMagickC-RayPostgreSQL pgbenchBullet Physics EngineFLAC Audio Encoding

LLVM Clang 3.8 Compiler Benchmarksapache: Static Web Page Servingbullet: Raytestsbullet: 3000 Fallbullet: 1000 Stackc-ray: Total Timeencode-flac: WAV To FLACgraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solverencode-mp3: WAV To MP3pgbench: Buffer Test - Heavy Contention - Read Writeredis: GETredis: SETscimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationsmallpt: Global Illumination Renderer; 100 Samplesbuild-apache: Time To Compilehmmer: Pfam Database Searchbuild-php: Time To CompileClang 3.6.0Clang 3.7.0Clang 3.8 SVN23551.583.545.886.4412.697.38851544.8815.685434.15627746.11577378.531929.87536.02362.612414.464862.281473.9815017.6615.4513.6722826.443.665.876.6712.847.32851444.5814.725345.65625801.98562350.481910.77521.71346.202484.074786.501415.3715519.8413.9915.7621484.413.595.696.7413.227.31801268.9115.365468.81552906.12511943.181851.53225.30343.692473.604806.981408.071322.2411.2216.81OpenBenchmarking.org

Apache Benchmark

This is a test of ab, which is the Apache benchmark program. This test profile measures how many requests per second a given system can sustain when carrying out 1,000,000 requests with 100 requests being carried out concurrently. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.4.7Static Web Page ServingClang 3.8 SVNClang 3.7.0Clang 3.6.05K10K15K20K25KSE +/- 97.80, N = 3SE +/- 180.59, N = 3SE +/- 19.77, N = 321484.4122826.4423551.581. (CC) gcc options: -shared -fPIC -pthread -O3 -march=native

Bullet Physics Engine

This is a benchmark of the Bullet Physics Engine. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: RaytestsClang 3.8 SVNClang 3.7.0Clang 3.6.00.82351.6472.47053.2944.1175SE +/- 0.02, N = 3SE +/- 0.07, N = 3SE +/- 0.06, N = 63.593.663.541. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 3000 FallClang 3.8 SVNClang 3.7.0Clang 3.6.01.3232.6463.9695.2926.615SE +/- 0.08, N = 3SE +/- 0.10, N = 3SE +/- 0.03, N = 35.695.875.881. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

OpenBenchmarking.orgSeconds, Fewer Is BetterBullet Physics Engine 2.81Test: 1000 StackClang 3.8 SVNClang 3.7.0Clang 3.6.0246810SE +/- 0.07, N = 3SE +/- 0.08, N = 3SE +/- 0.18, N = 36.746.676.441. (CXX) g++ options: -O3 -march=native -rdynamic -lglut -lGL -lGLU

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 TimeClang 3.8 SVNClang 3.7.0Clang 3.6.03691215SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 313.2212.8412.691. (CC) gcc options: -lm -lpthread -O3 -march=native

FLAC Audio Encoding

This test times how long it takes to encode a sample WAV file to FLAC format three times. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterFLAC Audio Encoding 1.3.1WAV To FLACClang 3.8 SVNClang 3.7.0Clang 3.6.0246810SE +/- 0.03, N = 5SE +/- 0.06, N = 5SE +/- 0.04, N = 57.317.327.381. (CXX) g++ options: -O3 -march=native -logg -lm

GraphicsMagick

This is a test of GraphicsMagick with its OpenMP implementation that performs various imaging tests to stress the system's CPU. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.19Operation: Local Adaptive ThresholdingClang 3.8 SVNClang 3.7.0Clang 3.6.020406080100SE +/- 0.33, N = 3SE +/- 0.58, N = 3SE +/- 0.58, N = 3808585-fopenmp -lgomp1. (CC) gcc options: -O3 -march=native -pthread -ljbig -lwebp -ltiff -ljpeg -lXext -lSM -lICE -lX11 -llzma -lz -lm -lpthread

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 SolverClang 3.8 SVNClang 3.7.0Clang 3.6.030060090012001500SE +/- 5.06, N = 3SE +/- 4.48, N = 3SE +/- 9.11, N = 31268.911444.581544.881. (CC) gcc options: -O3 -march=native -mavx2

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.

OpenBenchmarking.orgSeconds, Fewer Is BetterLAME MP3 Encoding 3.99.3WAV To MP3Clang 3.8 SVNClang 3.7.0Clang 3.6.048121620SE +/- 0.09, N = 5SE +/- 0.04, N = 5SE +/- 0.13, N = 515.3614.7215.681. (CC) gcc options: -pipe -O3 -march=native -lm

PostgreSQL pgbench

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 9.4.3Scaling: Buffer Test - Test: Heavy Contention - Mode: Read WriteClang 3.8 SVNClang 3.7.0Clang 3.6.012002400360048006000SE +/- 61.06, N = 3SE +/- 127.49, N = 6SE +/- 60.57, N = 35468.815345.655434.15-mthreads-mthreads1. (CC) gcc options: -fno-strict-aliasing -fwrapv -O3 -march=native -pthread -pthreads -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

Redis

Redis is an open-source data structure server. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: GETClang 3.8 SVNClang 3.7.0Clang 3.6.0130K260K390K520K650KSE +/- 5597.88, N = 3SE +/- 2487.14, N = 3SE +/- 10172.04, N = 4552906.12625801.98627746.111. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.0.1Test: SETClang 3.8 SVNClang 3.7.0Clang 3.6.0120K240K360K480K600KSE +/- 9097.01, N = 6SE +/- 2717.97, N = 3SE +/- 10638.06, N = 6511943.18562350.48577378.531. (CC) gcc options: -ggdb -rdynamic -lm -pthread -ldl

SciMark

This test runs the ANSI C version of SciMark 2.0, which is a benchmark for scientific and numerical computing developed by programmers at the National Institute of Standards and Technology. This test is made up of Fast Foruier Transform, Jacobi Successive Over-relaxation, Monte Carlo, Sparse Matrix Multiply, and dense LU matrix factorization benchmarks. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeClang 3.8 SVNClang 3.7.0Clang 3.6.0400800120016002000SE +/- 5.96, N = 4SE +/- 6.01, N = 4SE +/- 9.91, N = 41851.531910.771929.871. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloClang 3.8 SVNClang 3.7.0Clang 3.6.0120240360480600SE +/- 1.45, N = 4SE +/- 5.57, N = 4SE +/- 11.74, N = 4225.30521.71536.021. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformClang 3.8 SVNClang 3.7.0Clang 3.6.080160240320400SE +/- 0.59, N = 4SE +/- 1.06, N = 4SE +/- 0.82, N = 4343.69346.20362.611. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyClang 3.8 SVNClang 3.7.0Clang 3.6.05001000150020002500SE +/- 10.38, N = 4SE +/- 5.81, N = 4SE +/- 41.89, N = 42473.602484.072414.461. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationClang 3.8 SVNClang 3.7.0Clang 3.6.010002000300040005000SE +/- 25.29, N = 4SE +/- 12.15, N = 4SE +/- 24.09, N = 44806.984786.504862.281. (CXX) g++ options: -O3 -march=native

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationClang 3.8 SVNClang 3.7.0Clang 3.6.030060090012001500SE +/- 7.91, N = 4SE +/- 19.56, N = 4SE +/- 27.88, N = 41408.071415.371473.981. (CXX) g++ options: -O3 -march=native

Smallpt

OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesClang 3.8 SVNClang 3.7.0Clang 3.6.0306090120150SE +/- 0.20, N = 5SE +/- 0.00, N = 3SE +/- 0.67, N = 3131551501. (CXX) g++ options: -fopenmp -O3 -march=native

Timed Apache Compilation

This test times how long it takes to build the Apache HTTP Server. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Apache Compilation 2.4.7Time To CompileClang 3.8 SVNClang 3.7.0Clang 3.6.0510152025SE +/- 0.14, N = 3SE +/- 0.09, N = 3SE +/- 0.17, N = 322.2419.8417.66

Timed HMMer Search

This test searches through the Pfam database of profile hidden markov models. The search finds the domain structure of Drosophila Sevenless protein. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchClang 3.8 SVNClang 3.7.0Clang 3.6.048121620SE +/- 0.28, N = 6SE +/- 0.25, N = 3SE +/- 0.29, N = 611.2213.9915.451. (CC) gcc options: -O3 -march=native -pthread -lhmmer -lsquid -lm

Timed PHP Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed PHP Compilation 5.2.9Time To CompileClang 3.8 SVNClang 3.7.0Clang 3.6.048121620SE +/- 0.13, N = 3SE +/- 0.05, N = 3SE +/- 0.12, N = 316.8115.7613.671. (CC) gcc options: -O3 -march=native -pedantic -ldl -lz -lm

Clang 3.6.0

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.6.0 + LLVM 3.6.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (16:12:29); Default target: x86_64-unknown-linux-gnu; Host CPU: core-avx2
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 3 February 2016 16:25 by user phoronix.

Clang 3.7.0

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.7.0 + LLVM 3.7.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (14:58:25); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 3 February 2016 15:26 by user phoronix.

Clang 3.8 SVN

Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection

OS: Ubuntu 16.04, Kernel: 4.5.0-040500rc1-generic (x86_64) 20160124, Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: Clang 3.8.0 (SVN 259676) + LLVM 3.8.0, File-System: ext4, Screen Resolution: 2560x1440

Compiler Notes: Optimized build; Built Feb 3 2016 (13:57:10); Default target: x86_64-unknown-linux-gnu; Host CPU: haswell
Processor Notes: Scaling Governor: intel_pstate powersave

Testing initiated at 3 February 2016 14:27 by user phoronix.