Windows Server 2016 VA vs. Ubuntu 18.04 LTS Mitigations

Intel Xeon E3-1280 v5 testing with Windows Server 2016 toggling kernel VA Shadow for Meltdown mitigation.

HTML result view exported from: https://openbenchmarking.org/result/1803300-PTS-MITIGATI50&grt&sro.

Windows Server 2016 VA vs. Ubuntu 18.04 LTS MitigationsProcessorMotherboardMemoryDiskGraphicsNetworkChipsetAudioMonitorOSKernelDisplay DriverFile-SystemScreen ResolutionDesktopOpenGLCompilerNo MitigationsKernel VA ShadowUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offIntel Xeon E3-1280 v5 @ 3.70GHz (4 Cores / 8 Threads)MSI Z170A SLI PLUS (MS-7998)2 x 8192 MB 2133MHz Micron 9ASF1G72AZ-2G3A1238GB TOSHIBA-RD400Microsoft Basic DisplayASIX AX88772B USB2.0 to Fast + Microsoft ISATAPMicrosoft Windows Server 2016 Essentials Build 1439310.0 (x86_64)10.0.14393.0NTFS1024x768Intel Xeon E3-1280 v5 @ 4.00GHz (4 Cores / 8 Threads)MSI Z170A SLI PLUS (MS-7998) v1.0 (2.90 BIOS)Intel Skylake16384MB256GB TOSHIBA-RD400Sapphire AMD Radeon 4096MBRealtek ALC1150Acer B286HKIntel ConnectionUbuntu 18.044.15.0-13-generic (x86_64)GNOME Shell 3.28.0modesetting 1.19.64.5 Mesa 18.0.0-rc5 (LLVM 6.0.0)GCC 7.3.0ext43840x21604.16.0-999-generic (x86_64) 20180328llvmpipe 16000MB3.3 Mesa 18.0.0-rc5 (LLVM 6.0 256 bits)1024x768Sapphire AMD Radeon 4096MBAcer B286HK4.5 Mesa 18.0.0-rc5 (LLVM 6.0.0)3840x2160OpenBenchmarking.orgPython Details- No Mitigations: Python 2.7.14- Kernel VA Shadow: Python 2.7.14- Ubuntu 18.04 - Stock: Python 2.7.14+ + Python 3.6.5rc1- Ubuntu 18.04 - nopti: Python 2.7.14+ + Python 3.6.5rc1- Ubuntu 18.04 - nopti + spectre_v2=off: Python 2.7.14+ + Python 3.6.5rc1- Ubuntu 18.04 + Linux 4.16: Python 2.7.14+ + Python 3.6.5rc1- Ubuntu 18.04 + Linux 4.16 - nopti: Python 2.7.14+ + Python 3.6.5rc1- Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off: Python 2.7.14+ + Python 3.6.5rc1Compiler Details- Ubuntu 18.04 - Stock, Ubuntu 18.04 - nopti, Ubuntu 18.04 - nopti + spectre_v2=off, Ubuntu 18.04 + Linux 4.16, Ubuntu 18.04 + Linux 4.16 - nopti, Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off: --build=x86_64-linux-gnu --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-offload-targets=nvptx-none --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --program-prefix=x86_64-linux-gnu- --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-default-libstdcxx-abi=new --with-gcc-major-version-only --with-multilib-list=m32,m64,mx32 --with-target-system-zlib --with-tune=generic --without-cuda-driver -v Disk Details- Ubuntu 18.04 - Stock, Ubuntu 18.04 - nopti, Ubuntu 18.04 - nopti + spectre_v2=off, Ubuntu 18.04 + Linux 4.16, Ubuntu 18.04 + Linux 4.16 - nopti, Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off: NONE / data=ordered,errors=remount-ro,relatime,rwProcessor Details- Ubuntu 18.04 - Stock, Ubuntu 18.04 - nopti, Ubuntu 18.04 - nopti + spectre_v2=off, Ubuntu 18.04 + Linux 4.16, Ubuntu 18.04 + Linux 4.16 - nopti, Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off: Scaling Governor: intel_pstate powersaveSecurity Details- Ubuntu 18.04 - Stock: KPTI + __user pointer sanitization + Full generic retpoline Protection- Ubuntu 18.04 - nopti: __user pointer sanitization + Full generic retpoline Protection- Ubuntu 18.04 - nopti + spectre_v2=off: __user pointer sanitization Protection- Ubuntu 18.04 + Linux 4.16: KPTI + __user pointer sanitization + Full generic retpoline Protection- Ubuntu 18.04 + Linux 4.16 - nopti: __user pointer sanitization + Full generic retpoline Protection- Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off: __user pointer sanitization Protection

Windows Server 2016 VA vs. Ubuntu 18.04 LTS Mitigationscachebench: Readcachebench: Writecachebench: Read / Modify / Writeebizzy: gimp: resizegimp: auto-levelsgimp: unsharp-maskgimp: resizegimp: auto-levelsgimp: unsharp-maskiozone: 4Kb - 8GB - Write Performancejava-scimark2: Compositejava-scimark2: Monte Carlojava-scimark2: Fast Fourier Transformjava-scimark2: Sparse Matrix Multiplyjava-scimark2: Dense LU Matrix Factorizationjava-scimark2: Jacobi Successive Over-Relaxationosbench: Create Filesosbench: Launch Programsosbench: Memory Allocationsphpbench: PHP Benchmark Suitepybench: Total For Average Test Timessqlite: Timed SQLite Insertionsbuild-llvm: Time To CompileNo MitigationsKernel VA ShadowUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=off7577.0628034.5345636.52535912.4914.5720.65559.592469.16981.591589.152286.305942.701546.06248.63494.2175.673356341395108.31929.717095.3626327.8142855.85476812.3914.8221.30549.442247.28895.751475.702098.075351.161415.71266.72523.8183.453176111480114.04934.843331.0427691.7928912.572710511018.522433.57973.041512.162269.935974.441438.3013.5540.2976.30645778128971.83741.023347.0927992.6029269.20260938796.152470.79983.511536.052293.986086.791453.6212.8037.0572.58647880129066.57735.343361.6227073.3928987.522563222.745.339.93889.232428.62969.731542.492136.406050.751443.7111.2536.6172.55645293128676.25734.003349.4828015.9429447.192617533.065.7810.83866.192462.89980.151510.992290.976094.481437.8513.3039.8375.09640013128774.53739.773349.2427374.1628703.972575752.855.4010.03823.602477.61983.511531.462292.726130.971449.4112.4037.2472.46652306128764.23736.103370.8527660.0129291.522763812.755.379.93905.012473.76983.171512.962292.476125.331454.8611.0336.7672.38645987128463.85735.33OpenBenchmarking.org

CacheBench

Test: Read

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: ReadKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off16003200480064008000SE +/- 22.34, N = 3SE +/- 0.27, N = 3SE +/- 6.09, N = 3SE +/- 25.23, N = 3SE +/- 1.11, N = 3SE +/- 9.87, N = 3SE +/- 24.00, N = 3SE +/- 3.50, N = 37095.367577.063349.483349.243370.853331.043347.093361.621. (CC) gcc options: -lrt

CacheBench

Test: Write

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: WriteKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off6K12K18K24K30KSE +/- 11.91, N = 3SE +/- 1.50, N = 3SE +/- 268.56, N = 3SE +/- 213.11, N = 3SE +/- 360.65, N = 3SE +/- 33.86, N = 3SE +/- 274.58, N = 3SE +/- 273.21, N = 326327.8128034.5328015.9427374.1627660.0127691.7927992.6027073.391. (CC) gcc options: -lrt

CacheBench

Test: Read / Modify / Write

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Read / Modify / WriteKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off10K20K30K40K50KSE +/- 7.83, N = 3SE +/- 5.58, N = 3SE +/- 184.20, N = 3SE +/- 272.63, N = 3SE +/- 281.73, N = 3SE +/- 466.25, N = 4SE +/- 248.96, N = 3SE +/- 228.49, N = 342855.8545636.5229447.1928703.9729291.5228912.5729269.2028987.521. (CC) gcc options: -lrt

Diskspd

Threads Per Target: 1 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgMB/s, More Is BetterDiskspd 2.0.17Threads Per Target: 1 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations0.83931.67862.51793.35724.1965SE +/- 0.04, N = 3SE +/- 0.02, N = 33.583.73

Diskspd

Threads Per Target: 1 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgIOPS, More Is BetterDiskspd 2.0.17Threads Per Target: 1 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations2004006008001000SE +/- 8.59, N = 3SE +/- 4.19, N = 3916.62954.71

Diskspd

Threads Per Target: 6 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgMB/s, More Is BetterDiskspd 2.0.17Threads Per Target: 6 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations0.87751.7552.63253.514.3875SE +/- 0.03, N = 3SE +/- 0.01, N = 33.753.90

Diskspd

Threads Per Target: 6 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgIOPS, More Is BetterDiskspd 2.0.17Threads Per Target: 6 - Write Requests (Percent): 50 - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations2004006008001000SE +/- 7.16, N = 3SE +/- 2.39, N = 3960.34997.52

Diskspd

Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgMB/s, More Is BetterDiskspd 2.0.17Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations80160240320400SE +/- 0.24, N = 3SE +/- 6.80, N = 3334.21349.89

Diskspd

Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 1M - Block Size: 4KB

OpenBenchmarking.orgIOPS, More Is BetterDiskspd 2.0.17Threads Per Target: 1 - Write Requests (Percent): 0 - Read Only - File Size: 1M - Block Size: 4KBKernel VA ShadowNo Mitigations20K40K60K80K100KSE +/- 61.94, N = 3SE +/- 1741.78, N = 385559.1789570.14

ebizzy

OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3Kernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off60K120K180K240K300KSE +/- 55.38, N = 3SE +/- 56.17, N = 3SE +/- 5241.71, N = 6SE +/- 7787.30, N = 6SE +/- 583.28, N = 3SE +/- 1134.37, N = 3SE +/- 894.59, N = 3SE +/- 8371.52, N = 6476853592617532575752763812710512609382563221. (CC) gcc options: -pthread -lpthread -O3 -march=native

GIMP

Test: resize

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: resizeUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=off0.68851.3772.06552.7543.4425SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.01, N = 33.062.852.752.74

GIMP

Test: auto-levels

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: auto-levelsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=off1.30052.6013.90155.2026.5025SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 35.785.405.375.33

GIMP

Test: unsharp-mask

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: unsharp-maskUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=off3691215SE +/- 0.08, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.05, N = 310.8310.039.939.93

GIMP

Test: resize

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.9.8Test: resizeKernel VA ShadowNo Mitigations3691215SE +/- 0.11, N = 3SE +/- 0.18, N = 312.3912.49

GIMP

Test: auto-levels

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.9.8Test: auto-levelsKernel VA ShadowNo Mitigations48121620SE +/- 0.02, N = 3SE +/- 0.21, N = 514.8214.57

GIMP

Test: unsharp-mask

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.9.8Test: unsharp-maskKernel VA ShadowNo Mitigations510152025SE +/- 0.02, N = 3SE +/- 0.06, N = 321.3020.65

IOzone

Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance

OpenBenchmarking.orgMB/s, More Is BetterIOzone 3.465Record Size: 4Kb - File Size: 8GB - Disk Test: Write PerformanceKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off2004006008001000SE +/- 9.05, N = 4SE +/- 18.71, N = 6SE +/- 12.00, N = 3SE +/- 1.04, N = 3SE +/- 0.72, N = 3SE +/- 2.90, N = 3SE +/- 11.30, N = 3SE +/- 4.91, N = 3549.44559.59866.19823.60905.011018.52796.15889.231. (CC) gcc options: -O3

Java SciMark

Computational Test: Composite

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: CompositeKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off5001000150020002500SE +/- 2.64, N = 4SE +/- 6.82, N = 4SE +/- 9.65, N = 4SE +/- 7.35, N = 4SE +/- 8.13, N = 4SE +/- 2.55, N = 4SE +/- 12.77, N = 4SE +/- 39.48, N = 42247.282469.162462.892477.612473.762433.572470.792428.62

Java SciMark

Computational Test: Monte Carlo

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Monte CarloKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off2004006008001000SE +/- 3.23, N = 4SE +/- 0.11, N = 4SE +/- 2.11, N = 4SE +/- 0.23, N = 4SE +/- 0.34, N = 4SE +/- 1.82, N = 4SE +/- 0.13, N = 4SE +/- 11.61, N = 4895.75981.59980.15983.51983.17973.04983.51969.73

Java SciMark

Computational Test: Fast Fourier Transform

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Fast Fourier TransformKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off30060090012001500SE +/- 3.62, N = 4SE +/- 10.97, N = 4SE +/- 2.27, N = 4SE +/- 6.57, N = 4SE +/- 9.53, N = 4SE +/- 3.66, N = 4SE +/- 22.48, N = 4SE +/- 20.28, N = 41475.701589.151510.991531.461512.961512.161536.051542.49

Java SciMark

Computational Test: Sparse Matrix Multiply

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Sparse Matrix MultiplyKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off5001000150020002500SE +/- 7.37, N = 4SE +/- 7.49, N = 4SE +/- 1.26, N = 4SE +/- 0.63, N = 4SE +/- 1.73, N = 4SE +/- 5.20, N = 4SE +/- 0.29, N = 4SE +/- 145.51, N = 42098.072286.302290.972292.722292.472269.932293.982136.40

Java SciMark

Computational Test: Dense LU Matrix Factorization

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Dense LU Matrix FactorizationKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off13002600390052006500SE +/- 18.47, N = 4SE +/- 40.09, N = 4SE +/- 52.51, N = 4SE +/- 36.64, N = 4SE +/- 46.04, N = 4SE +/- 10.80, N = 4SE +/- 42.66, N = 4SE +/- 55.23, N = 45351.165942.706094.486130.976125.335974.446086.796050.75

Java SciMark

Computational Test: Jacobi Successive Over-Relaxation

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Jacobi Successive Over-RelaxationKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off30060090012001500SE +/- 1.84, N = 4SE +/- 2.78, N = 4SE +/- 6.71, N = 4SE +/- 3.80, N = 4SE +/- 0.50, N = 4SE +/- 1.41, N = 4SE +/- 0.52, N = 4SE +/- 3.58, N = 41415.711546.061437.851449.411454.861438.301453.621443.71

OSBench

Test: Create Files

OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Create FilesKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off60120180240300SE +/- 0.67, N = 3SE +/- 0.15, N = 3SE +/- 0.07, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.09, N = 3SE +/- 0.01, N = 3SE +/- 0.08, N = 3266.72248.6313.3012.4011.0313.5512.8011.251. (CC) gcc options: -lm

OSBench

Test: Launch Programs

OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Launch ProgramsKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off110220330440550SE +/- 2.00, N = 3SE +/- 0.37, N = 3SE +/- 0.12, N = 3SE +/- 0.05, N = 3SE +/- 0.13, N = 3SE +/- 0.05, N = 3SE +/- 0.09, N = 3SE +/- 0.29, N = 3523.81494.2139.8337.2436.7640.2937.0536.611. (CC) gcc options: -lm

OSBench

Test: Memory Allocations

OpenBenchmarking.orgNs Per Event, Fewer Is BetterOSBenchTest: Memory AllocationsKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off20406080100SE +/- 0.60, N = 3SE +/- 0.13, N = 3SE +/- 0.13, N = 3SE +/- 0.11, N = 3SE +/- 0.04, N = 3SE +/- 0.12, N = 3SE +/- 0.09, N = 3SE +/- 0.14, N = 383.4575.6775.0972.4672.3876.3072.5872.551. (CC) gcc options: -lm

PHPBench

PHP Benchmark Suite

OpenBenchmarking.orgScore, More Is BetterPHPBench 0.8.1PHP Benchmark SuiteKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off140K280K420K560K700KSE +/- 347.52, N = 3SE +/- 2130.68, N = 3SE +/- 7319.66, N = 3SE +/- 1842.44, N = 3SE +/- 3136.48, N = 3SE +/- 5347.65, N = 3SE +/- 3162.10, N = 3SE +/- 3856.85, N = 3317611335634640013652306645987645778647880645293

PyBench

Total For Average Test Times

OpenBenchmarking.orgMilliseconds, Fewer Is BetterPyBench 2018-02-16Total For Average Test TimesKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off30060090012001500SE +/- 3.71, N = 3SE +/- 2.03, N = 3SE +/- 1.20, N = 3SE +/- 2.40, N = 3SE +/- 2.40, N = 3SE +/- 1.00, N = 3SE +/- 2.08, N = 314801395128712871284128912901286

Redis

Test: LPUSH

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.2.1Test: LPUSHKernel VA ShadowNo Mitigations200K400K600K800K1000KSE +/- 1204.53, N = 3SE +/- 4531.94, N = 3880130.04905651.27

SQLite

Timed SQLite Insertions

OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.22Timed SQLite InsertionsKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off306090120150SE +/- 0.26, N = 3SE +/- 0.41, N = 3SE +/- 0.07, N = 3SE +/- 0.33, N = 3SE +/- 0.15, N = 3SE +/- 0.77, N = 3SE +/- 0.11, N = 3SE +/- 0.13, N = 3114.04108.3174.5364.2363.8571.8366.5776.251. (CC) gcc options: -O2 -ldl -lpthread

Timed LLVM Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 4.0.1Time To CompileKernel VA ShadowNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=off2004006008001000SE +/- 1.01, N = 3SE +/- 1.73, N = 3SE +/- 0.25, N = 3SE +/- 0.42, N = 3SE +/- 0.27, N = 3SE +/- 0.60, N = 3SE +/- 0.09, N = 3SE +/- 0.17, N = 3934.84929.71739.77736.10735.33741.02735.34734.00

WinSAT

Test: Disk

OpenBenchmarking.orgMB/s, More Is BetterWinSATTest: DiskKernel VA ShadowNo Mitigations306090120150SE +/- 32.92, N = 6SE +/- 21.49, N = 6111.83114.27MIN: 70.14 / MAX: 275.95MIN: 76.08 / MAX: 208.74

Phoronix Test Suite v10.8.4