Ubuntu Linux 12.10 Xen KVM Virtualization

A comparison of Xen and KVM virtualization against bare metal from an Intel Core i7 3960X Extreme Edition system running a development snapshot of Ubuntu 12.10 Quantal from 27 June 2012. Benchmarking 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 1206282-SU-XENKVMUBU15
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Bioinformatics 3 Tests
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Common Kernel Benchmarks 3 Tests
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Ubuntu Linux 12.10 Xen KVM VirtualizationProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionSystem LayerBare MetalXen HVM 4.1.2KVM VirtualizationIntel Core i7-3960X @ 3.30GHz (12 Cores)Intel DX79SIIntel Xeon E5/Core8192MB64GB OCZ VERTEXAMD Radeon HD 4650 512MBRealtek ALC892DELL S2409WIntel 82579LM Gigabit ConnectionUbuntu 12.103.5.0-2-generic (x86_64)Unity 5.12.0X Server 1.11.3radeon 6.14.42.1 Mesa 8.0.3 Gallium 0.4GCC 4.7ext41920x1080Xen HVM domU v4.1.2Intel 440FX- 82441FX PMC6144MB22GBLLVMpipeEnsoniq ES1370Unity 2D 5.12.0cirrus 1.4.01024x768Xen HVM domU 4.1.2QEMU Virtual 1.1.0 @ 3.30GHz (12 Cores)Bochs18GBGeneric 1af4 ID 21Red Hat Virtio deviceQEMU 1.1.0OpenBenchmarking.orgCompiler Details- --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 Disk Details- CFQ / data=ordered,errors=remount-ro,relatime,rwProcessor Details- Bare Metal: Scaling Governor: ondemandSystem Details- Bare Metal: Disk Scheduler: CFQ. Compiz was running on this system.- Xen HVM 4.1.2: Disk Scheduler: CFQ.- KVM Virtualization: Disk Scheduler: CFQ.

Bare MetalXen HVM 4.1.2KVM VirtualizationResult OverviewPhoronix Test Suite100%127%154%181%Timed MAFFT AlignmentDbenchThreaded I/O TesterPostgreSQL pgbenchTimed Linux Kernel CompilationVP8 libvpx Encodingx264GraphicsMagickSciMarkNAS Parallel Benchmarks7-Zip CompressionFFmpegJohn The RipperOpenSSLC-RayTimed HMMer SearchApache BenchmarkHimeno BenchmarkLAMMPS Molecular Dynamics SimulatorSmallpt

Ubuntu Linux 12.10 Xen KVM Virtualizationdbench: 1tiobench: Rand Write - 64MB - 8npb: EP.Bnpb: LU.Anpb: MG.Bnpb: SP.Alammps: Rhodopsin Proteinhmmer: Pfam Database Searchmafft: Multiple Sequence Alignmentscimark2: Compositescimark2: Monte Carloscimark2: Fast Fourier Transformscimark2: Sparse Matrix Multiplyscimark2: Dense LU Matrix Factorizationscimark2: Jacobi Successive Over-Relaxationjohn-the-ripper: Blowfishvpxenc: vpxencx264: H.264 Video Encodinggraphics-magick: Sharpengraphics-magick: Resizinggraphics-magick: Local Adaptive Thresholdinghimeno: Poisson Pressure Solvercompress-7zip: Compress Speed Testbuild-linux-kernel: Time To Compilec-ray: Total Timesmallpt: Global Illumination Renderer; 100 Samplesffmpeg: AVI To NTSC VCDopenssl: RSA 4096-bit Performancepgbench: TPC-B Transactions Per Secondapache: Static Web Page ServingBare MetalXen HVM 4.1.2KVM Virtualization35.913.07401.8412804.562711.723689.3339.2515.546.171262.68416.59333.922005.392378.311179.18811627.43201.461061751021632.272501161.5322.746410.1092.00314.0516780.1617.953.33378.8010603.072520.883472.4840.2215.8912.871211.82405.58310.111930.462260.281152.69766428.78192.8095153911592.1524021103.1423.716410.7987.28176.9716499.0026.181.75394.6911630.582471.403460.6939.9416.1012.041167.57414.58232.041843.002179.171169.08793323.05166.951041691001616.822281270.7123.816510.3291.53211.4716318.92OpenBenchmarking.org

Dbench

Dbench is a benchmark designed by the Samba project as a free alternative to netbench, but dbench contains only file-system calls for testing the disk performance. Learn more via the OpenBenchmarking.org test page.

OpenBenchmarking.orgMB/s, More Is BetterDbench 4.0Client Count: 1Xen HVM 4.1.2KVM VirtualizationBare Metal816243240SE +/- 0.02, N = 3SE +/- 0.08, N = 3SE +/- 0.36, N = 317.9526.1835.911. (CC) gcc options: -lpopt
OpenBenchmarking.orgMB/s, More Is BetterDbench 4.0Client Count: 1Xen HVM 4.1.2KVM VirtualizationBare Metal816243240Min: 17.93 / Avg: 17.95 / Max: 18Min: 26.03 / Avg: 26.18 / Max: 26.28Min: 35.24 / Avg: 35.91 / Max: 36.451. (CC) gcc options: -lpopt

Threaded I/O Tester

OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.3Test: Random Write - Size Per Thread: 64MB - Thread Count: 8KVM VirtualizationBare MetalXen HVM 4.1.20.74931.49862.24792.99723.7465SE +/- 0.01, N = 4SE +/- 0.05, N = 8SE +/- 0.04, N = 41.753.073.33
OpenBenchmarking.orgMB/s, More Is BetterThreaded I/O Tester 0.3.3Test: Random Write - Size Per Thread: 64MB - Thread Count: 8KVM VirtualizationBare MetalXen HVM 4.1.2246810Min: 1.73 / Avg: 1.75 / Max: 1.77Min: 2.84 / Avg: 3.07 / Max: 3.25Min: 3.23 / Avg: 3.33 / Max: 3.38

NAS Parallel Benchmarks

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: EP.BXen HVM 4.1.2KVM VirtualizationBare Metal90180270360450SE +/- 5.68, N = 6SE +/- 0.34, N = 3SE +/- 0.27, N = 3378.80394.69401.841. (F9X) gfortran options: -fopenmp
OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: EP.BXen HVM 4.1.2KVM VirtualizationBare Metal70140210280350Min: 353.24 / Avg: 378.8 / Max: 390.39Min: 394.26 / Avg: 394.69 / Max: 395.35Min: 401.5 / Avg: 401.84 / Max: 402.381. (F9X) gfortran options: -fopenmp

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: LU.AXen HVM 4.1.2KVM VirtualizationBare Metal3K6K9K12K15KSE +/- 225.13, N = 6SE +/- 232.55, N = 3SE +/- 17.50, N = 310603.0711630.5812804.561. (F9X) gfortran options: -fopenmp
OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: LU.AXen HVM 4.1.2KVM VirtualizationBare Metal2K4K6K8K10KMin: 9615.41 / Avg: 10603.07 / Max: 11192.15Min: 11326.26 / Avg: 11630.58 / Max: 12087.34Min: 12769.93 / Avg: 12804.56 / Max: 12826.311. (F9X) gfortran options: -fopenmp

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: MG.BKVM VirtualizationXen HVM 4.1.2Bare Metal6001200180024003000SE +/- 37.34, N = 3SE +/- 26.68, N = 3SE +/- 1.62, N = 32471.402520.882711.721. (F9X) gfortran options: -fopenmp
OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: MG.BKVM VirtualizationXen HVM 4.1.2Bare Metal5001000150020002500Min: 2398.26 / Avg: 2471.4 / Max: 2520.99Min: 2467.76 / Avg: 2520.88 / Max: 2551.88Min: 2709.25 / Avg: 2711.72 / Max: 2714.781. (F9X) gfortran options: -fopenmp

OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: SP.AKVM VirtualizationXen HVM 4.1.2Bare Metal8001600240032004000SE +/- 42.40, N = 3SE +/- 23.94, N = 3SE +/- 7.20, N = 33460.693472.483689.331. (F9X) gfortran options: -fopenmp
OpenBenchmarking.orgTotal Mop/s, More Is BetterNAS Parallel Benchmarks 3.3Test / Class: SP.AKVM VirtualizationXen HVM 4.1.2Bare Metal6001200180024003000Min: 3376.43 / Avg: 3460.69 / Max: 3511.12Min: 3428.69 / Avg: 3472.48 / Max: 3511.16Min: 3680.94 / Avg: 3689.33 / Max: 3703.651. (F9X) gfortran options: -fopenmp

LAMMPS Molecular Dynamics Simulator

OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinXen HVM 4.1.2KVM VirtualizationBare Metal918273645SE +/- 0.24, N = 3SE +/- 0.02, N = 3SE +/- 0.05, N = 340.2239.9439.251. (CXX) g++ options: -lfftw -lmpich
OpenBenchmarking.orgLoop Time, Fewer Is BetterLAMMPS Molecular Dynamics Simulator 1.0Test: Rhodopsin ProteinXen HVM 4.1.2KVM VirtualizationBare Metal816243240Min: 39.89 / Avg: 40.22 / Max: 40.69Min: 39.91 / Avg: 39.94 / Max: 39.98Min: 39.15 / Avg: 39.25 / Max: 39.311. (CXX) g++ options: -lfftw -lmpich

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 SearchKVM VirtualizationXen HVM 4.1.2Bare Metal48121620SE +/- 0.08, N = 3SE +/- 0.07, N = 3SE +/- 0.05, N = 316.1015.8915.541. (CC) gcc options: -O2 -pthread -lhmmer -lsquid -lm
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed HMMer Search 2.3.2Pfam Database SearchKVM VirtualizationXen HVM 4.1.2Bare Metal48121620Min: 16 / Avg: 16.1 / Max: 16.26Min: 15.82 / Avg: 15.89 / Max: 16.03Min: 15.46 / Avg: 15.54 / Max: 15.621. (CC) gcc options: -O2 -pthread -lhmmer -lsquid -lm

Timed MAFFT Alignment

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentXen HVM 4.1.2KVM VirtualizationBare Metal3691215SE +/- 0.22, N = 4SE +/- 0.32, N = 6SE +/- 0.17, N = 612.8712.046.171. (CC) gcc options: -O3 -lm -lpthread
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed MAFFT Alignment 6.864Multiple Sequence AlignmentXen HVM 4.1.2KVM VirtualizationBare Metal48121620Min: 12.34 / Avg: 12.87 / Max: 13.36Min: 11.23 / Avg: 12.04 / Max: 13.36Min: 5.89 / Avg: 6.17 / Max: 7.011. (CC) gcc options: -O3 -lm -lpthread

SciMark

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeKVM VirtualizationXen HVM 4.1.2Bare Metal30060090012001500SE +/- 2.83, N = 4SE +/- 4.94, N = 4SE +/- 0.68, N = 41167.571211.821262.68
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: CompositeKVM VirtualizationXen HVM 4.1.2Bare Metal2004006008001000Min: 1159.99 / Avg: 1167.57 / Max: 1172.06Min: 1197.69 / Avg: 1211.82 / Max: 1220.5Min: 1261.11 / Avg: 1262.68 / Max: 1263.94

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloXen HVM 4.1.2KVM VirtualizationBare Metal90180270360450SE +/- 1.15, N = 4SE +/- 1.13, N = 4SE +/- 0.41, N = 4405.58414.58416.59
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Monte CarloXen HVM 4.1.2KVM VirtualizationBare Metal70140210280350Min: 403.66 / Avg: 405.58 / Max: 408.27Min: 411.4 / Avg: 414.58 / Max: 416.18Min: 416.18 / Avg: 416.59 / Max: 417.8

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformKVM VirtualizationXen HVM 4.1.2Bare Metal70140210280350SE +/- 0.30, N = 4SE +/- 3.17, N = 4SE +/- 1.23, N = 4232.04310.11333.92
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Fast Fourier TransformKVM VirtualizationXen HVM 4.1.2Bare Metal60120180240300Min: 231.25 / Avg: 232.04 / Max: 232.51Min: 304.5 / Avg: 310.11 / Max: 318.08Min: 330.36 / Avg: 333.92 / Max: 335.54

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyKVM VirtualizationXen HVM 4.1.2Bare Metal400800120016002000SE +/- 3.98, N = 4SE +/- 20.40, N = 4SE +/- 2.45, N = 41843.001930.462005.39
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Sparse Matrix MultiplyKVM VirtualizationXen HVM 4.1.2Bare Metal30060090012001500Min: 1836.77 / Avg: 1843 / Max: 1853.39Min: 1870.32 / Avg: 1930.46 / Max: 1959.81Min: 1998.05 / Avg: 2005.39 / Max: 2007.84

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationKVM VirtualizationXen HVM 4.1.2Bare Metal5001000150020002500SE +/- 7.58, N = 4SE +/- 17.22, N = 4SE +/- 2.64, N = 42179.172260.282378.31
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Dense LU Matrix FactorizationKVM VirtualizationXen HVM 4.1.2Bare Metal400800120016002000Min: 2159.24 / Avg: 2179.17 / Max: 2194.79Min: 2231.52 / Avg: 2260.28 / Max: 2308.8Min: 2370.37 / Avg: 2378.31 / Max: 2380.95

OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationXen HVM 4.1.2KVM VirtualizationBare Metal30060090012001500SE +/- 6.38, N = 4SE +/- 2.80, N = 4SE +/- 0.00, N = 41152.691169.081179.18
OpenBenchmarking.orgMflops, More Is BetterSciMark 2.0Computational Test: Jacobi Successive Over-RelaxationXen HVM 4.1.2KVM VirtualizationBare Metal2004006008001000Min: 1139.72 / Avg: 1152.69 / Max: 1165.73Min: 1161.31 / Avg: 1169.08 / Max: 1174.66Min: 1179.18 / Avg: 1179.18 / Max: 1179.18

John The Ripper

OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.7.9Test: BlowfishXen HVM 4.1.2KVM VirtualizationBare Metal2K4K6K8K10KSE +/- 146.21, N = 3SE +/- 0.67, N = 3SE +/- 5.33, N = 37664793381161. (CC) gcc options: -fopenmp -lcrypt
OpenBenchmarking.orgReal C/S, More Is BetterJohn The Ripper 1.7.9Test: BlowfishXen HVM 4.1.2KVM VirtualizationBare Metal14002800420056007000Min: 7372 / Avg: 7664.33 / Max: 7817Min: 7932 / Avg: 7932.67 / Max: 7934Min: 8105 / Avg: 8115.67 / Max: 81211. (CC) gcc options: -fopenmp -lcrypt

VP8 libvpx Encoding

OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 0.9.7-p1vpxencKVM VirtualizationBare MetalXen HVM 4.1.2714212835SE +/- 0.38, N = 3SE +/- 0.22, N = 3SE +/- 0.39, N = 323.0527.4328.781. (CC) gcc options: -m64 -lvpx -lm -lpthread
OpenBenchmarking.orgFrames Per Second, More Is BetterVP8 libvpx Encoding 0.9.7-p1vpxencKVM VirtualizationBare MetalXen HVM 4.1.2612182430Min: 22.44 / Avg: 23.05 / Max: 23.74Min: 27.01 / Avg: 27.43 / Max: 27.73Min: 28 / Avg: 28.78 / Max: 29.231. (CC) gcc options: -m64 -lvpx -lm -lpthread

x264

OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2011-12-06H.264 Video EncodingKVM VirtualizationXen HVM 4.1.2Bare Metal4080120160200SE +/- 5.08, N = 6SE +/- 3.67, N = 6SE +/- 2.94, N = 5166.95192.80201.46
OpenBenchmarking.orgFrames Per Second, More Is Betterx264 2011-12-06H.264 Video EncodingKVM VirtualizationXen HVM 4.1.2Bare Metal4080120160200Min: 141.71 / Avg: 166.95 / Max: 173.68Min: 174.59 / Avg: 192.8 / Max: 197.8Min: 189.8 / Avg: 201.46 / Max: 205.53

GraphicsMagick

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: SharpenXen HVM 4.1.2KVM VirtualizationBare Metal20406080100SE +/- 0.33, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3951041061. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: SharpenXen HVM 4.1.2KVM VirtualizationBare Metal20406080100Min: 95 / Avg: 95.33 / Max: 96Min: 104 / Avg: 104 / Max: 104Min: 106 / Avg: 106 / Max: 1061. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: ResizingXen HVM 4.1.2KVM VirtualizationBare Metal4080120160200SE +/- 1.20, N = 3SE +/- 0.67, N = 3SE +/- 0.00, N = 31531691751. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: ResizingXen HVM 4.1.2KVM VirtualizationBare Metal306090120150Min: 151 / Avg: 153.33 / Max: 155Min: 168 / Avg: 169.33 / Max: 170Min: 175 / Avg: 175 / Max: 1751. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -lpthread

OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: Local Adaptive ThresholdingXen HVM 4.1.2KVM VirtualizationBare Metal20406080100SE +/- 1.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3911001021. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -lpthread
OpenBenchmarking.orgIterations Per Minute, More Is BetterGraphicsMagick 1.3.12Operation: Local Adaptive ThresholdingXen HVM 4.1.2KVM VirtualizationBare Metal20406080100Min: 89 / Avg: 91 / Max: 92Min: 100 / Avg: 100 / Max: 100Min: 102 / Avg: 102 / Max: 1021. (CC) gcc options: -std=gnu99 -fopenmp -O2 -pthread -lz -lm -lgomp -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 SolverXen HVM 4.1.2KVM VirtualizationBare Metal400800120016002000SE +/- 7.54, N = 3SE +/- 3.25, N = 3SE +/- 1.21, N = 31592.151616.821632.271. (CC) gcc options: -O3
OpenBenchmarking.orgMFLOPS, More Is BetterHimeno Benchmark 3.0Poisson Pressure SolverXen HVM 4.1.2KVM VirtualizationBare Metal30060090012001500Min: 1584.08 / Avg: 1592.15 / Max: 1607.21Min: 1611.45 / Avg: 1616.82 / Max: 1622.69Min: 1629.99 / Avg: 1632.27 / Max: 1634.111. (CC) gcc options: -O3

7-Zip Compression

OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestKVM VirtualizationXen HVM 4.1.2Bare Metal5K10K15K20K25KSE +/- 139.43, N = 3SE +/- 69.43, N = 3SE +/- 82.72, N = 32281224021250111. (CXX) g++ options: -pipe -lpthread
OpenBenchmarking.orgMIPS, More Is Better7-Zip Compression 9.20.1Compress Speed TestKVM VirtualizationXen HVM 4.1.2Bare Metal4K8K12K16K20KMin: 22534 / Avg: 22812 / Max: 22970Min: 23892 / Avg: 24021 / Max: 24130Min: 24855 / Avg: 25010.67 / Max: 251371. (CXX) g++ options: -pipe -lpthread

Timed Linux Kernel Compilation

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 3.1Time To CompileXen HVM 4.1.2KVM VirtualizationBare Metal20406080100SE +/- 0.66, N = 3SE +/- 1.36, N = 3SE +/- 0.58, N = 3103.1470.7161.53
OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 3.1Time To CompileXen HVM 4.1.2KVM VirtualizationBare Metal20406080100Min: 102.16 / Avg: 103.14 / Max: 104.39Min: 68.66 / Avg: 70.71 / Max: 73.27Min: 60.83 / Avg: 61.53 / Max: 62.67

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 TimeKVM VirtualizationXen HVM 4.1.2Bare Metal612182430SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 323.8123.7122.741. (CC) gcc options: -lm -lpthread -O3
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total TimeKVM VirtualizationXen HVM 4.1.2Bare Metal612182430Min: 23.79 / Avg: 23.81 / Max: 23.83Min: 23.69 / Avg: 23.71 / Max: 23.72Min: 22.69 / Avg: 22.74 / Max: 22.781. (CC) gcc options: -lm -lpthread -O3

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 SamplesKVM VirtualizationXen HVM 4.1.2Bare Metal1530456075SE +/- 0.00, N = 3SE +/- 0.33, N = 3SE +/- 0.33, N = 36564641. (CXX) g++ options: -fopenmp
OpenBenchmarking.orgSeconds, Fewer Is BetterSmallpt 1.0Global Illumination Renderer; 100 SamplesKVM VirtualizationXen HVM 4.1.2Bare Metal1326395265Min: 65 / Avg: 65 / Max: 65Min: 64 / Avg: 64.33 / Max: 65Min: 64 / Avg: 64.33 / Max: 651. (CXX) g++ options: -fopenmp

FFmpeg

OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 0.10AVI To NTSC VCDXen HVM 4.1.2KVM VirtualizationBare Metal3691215SE +/- 0.16, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 310.7910.3210.101. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lm -pthread
OpenBenchmarking.orgSeconds, Fewer Is BetterFFmpeg 0.10AVI To NTSC VCDXen HVM 4.1.2KVM VirtualizationBare Metal3691215Min: 10.52 / Avg: 10.79 / Max: 11.07Min: 10.3 / Avg: 10.32 / Max: 10.34Min: 10.07 / Avg: 10.1 / Max: 10.161. (CC) gcc options: -lavdevice -lavfilter -lavformat -lavcodec -lswresample -lswscale -lavutil -ldl -lm -pthread

OpenSSL

OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.0eRSA 4096-bit PerformanceXen HVM 4.1.2KVM VirtualizationBare Metal20406080100SE +/- 0.95, N = 4SE +/- 0.26, N = 4SE +/- 0.23, N = 487.2891.5392.001. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl
OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.0.0eRSA 4096-bit PerformanceXen HVM 4.1.2KVM VirtualizationBare Metal20406080100Min: 84.9 / Avg: 87.28 / Max: 88.9Min: 91 / Avg: 91.53 / Max: 92.1Min: 91.3 / Avg: 92 / Max: 92.31. (CC) gcc options: -m64 -O3 -lssl -lcrypto -ldl

PostgreSQL pgbench

OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 8.4.11TPC-B Transactions Per SecondXen HVM 4.1.2KVM VirtualizationBare Metal70140210280350SE +/- 0.70, N = 3SE +/- 2.14, N = 3SE +/- 2.51, N = 3176.97211.47314.051. (CC) gcc options: -O2 -fno-strict-aliasing -fwrapv -lpgport -lpq -lcrypt -ldl -lm
OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 8.4.11TPC-B Transactions Per SecondXen HVM 4.1.2KVM VirtualizationBare Metal60120180240300Min: 175.58 / Avg: 176.97 / Max: 177.82Min: 207.2 / Avg: 211.47 / Max: 213.82Min: 309.07 / Avg: 314.05 / Max: 316.981. (CC) gcc options: -O2 -fno-strict-aliasing -fwrapv -lpgport -lpq -lcrypt -ldl -lm

Apache Benchmark

OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingKVM VirtualizationXen HVM 4.1.2Bare Metal4K8K12K16K20KSE +/- 124.98, N = 3SE +/- 69.42, N = 3SE +/- 101.52, N = 316318.9216499.0016780.161. (CC) gcc options: -O2 -pthread -lm -lrt -lcrypt -lpthread -ldl
OpenBenchmarking.orgRequests Per Second, More Is BetterApache Benchmark 2.2.21Static Web Page ServingKVM VirtualizationXen HVM 4.1.2Bare Metal3K6K9K12K15KMin: 16153.08 / Avg: 16318.92 / Max: 16563.81Min: 16372.29 / Avg: 16499 / Max: 16611.49Min: 16614.01 / Avg: 16780.16 / Max: 16964.291. (CC) gcc options: -O2 -pthread -lm -lrt -lcrypt -lpthread -ldl