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&sor.

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 Mitigationssqlite: Timed SQLite Insertionsiozone: 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-Relaxationcachebench: Readcachebench: Writecachebench: Read / Modify / Writeebizzy: build-llvm: Time To Compilegimp: resizegimp: auto-levelsgimp: unsharp-maskpybench: Total For Average Test Timesphpbench: PHP Benchmark Suiteosbench: Create Filesosbench: Launch Programsosbench: Memory Allocationsgimp: resizegimp: auto-levelsgimp: unsharp-maskNo 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=off108.31559.592469.16981.591589.152286.305942.701546.067577.0628034.5345636.525359929.7112.4914.5720.651395335634248.63494.2175.67114.04549.442247.28895.751475.702098.075351.161415.717095.3626327.8142855.854768934.8412.3914.8221.301480317611266.72523.8183.4571.831018.522433.57973.041512.162269.935974.441438.303331.0427691.7928912.57271051741.02128964577813.5540.2976.3066.57796.152470.79983.511536.052293.986086.791453.623347.0927992.6029269.20260938735.34129064788012.8037.0572.5876.25889.232428.62969.731542.492136.406050.751443.713361.6227073.3928987.52256322734.00128664529311.2536.6172.552.745.339.9374.53866.192462.89980.151510.992290.976094.481437.853349.4828015.9429447.19261753739.77128764001313.3039.8375.093.065.7810.8364.23823.602477.61983.511531.462292.726130.971449.413349.2427374.1628703.97257575736.10128765230612.4037.2472.462.855.4010.0363.85905.012473.76983.171512.962292.476125.331454.863370.8527660.0129291.52276381735.33128464598711.0336.7672.382.755.379.93OpenBenchmarking.org

SQLite

Timed SQLite Insertions

OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.22Timed SQLite InsertionsUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - nopti + spectre_v2=offNo MitigationsKernel VA Shadow306090120150SE +/- 0.15, N = 3SE +/- 0.33, N = 3SE +/- 0.11, N = 3SE +/- 0.77, N = 3SE +/- 0.07, N = 3SE +/- 0.13, N = 3SE +/- 0.41, N = 3SE +/- 0.26, N = 363.8564.2366.5771.8374.5376.25108.31114.041. (CC) gcc options: -O2 -ldl -lpthread

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: 4KBNo MitigationsKernel VA Shadow0.83931.67862.51793.35724.1965SE +/- 0.02, N = 3SE +/- 0.04, N = 33.733.58

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: 4KBNo MitigationsKernel VA Shadow2004006008001000SE +/- 4.19, N = 3SE +/- 8.59, N = 3954.71916.62

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: 4KBNo MitigationsKernel VA Shadow0.87751.7552.63253.514.3875SE +/- 0.01, N = 3SE +/- 0.03, N = 33.903.75

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: 4KBNo MitigationsKernel VA Shadow2004006008001000SE +/- 2.39, N = 3SE +/- 7.16, N = 3997.52960.34

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: 4KBNo MitigationsKernel VA Shadow80160240320400SE +/- 6.80, N = 3SE +/- 0.24, N = 3349.89334.21

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: 4KBNo MitigationsKernel VA Shadow20K40K60K80K100KSE +/- 1741.78, N = 3SE +/- 61.94, N = 389570.1485559.17

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 PerformanceUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiNo MitigationsKernel VA Shadow2004006008001000SE +/- 2.90, N = 3SE +/- 0.72, N = 3SE +/- 4.91, N = 3SE +/- 12.00, N = 3SE +/- 1.04, N = 3SE +/- 11.30, N = 3SE +/- 18.71, N = 6SE +/- 9.05, N = 41018.52905.01889.23866.19823.60796.15559.59549.441. (CC) gcc options: -O3

Java SciMark

Computational Test: Composite

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: CompositeUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - noptiNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - StockUbuntu 18.04 - nopti + spectre_v2=offKernel VA Shadow5001000150020002500SE +/- 7.35, N = 4SE +/- 8.13, N = 4SE +/- 12.77, N = 4SE +/- 6.82, N = 4SE +/- 9.65, N = 4SE +/- 2.55, N = 4SE +/- 39.48, N = 4SE +/- 2.64, N = 42477.612473.762470.792469.162462.892433.572428.622247.28

Java SciMark

Computational Test: Monte Carlo

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Monte CarloUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - StockUbuntu 18.04 - nopti + spectre_v2=offKernel VA Shadow2004006008001000SE +/- 0.23, N = 4SE +/- 0.13, N = 4SE +/- 0.34, N = 4SE +/- 0.11, N = 4SE +/- 2.11, N = 4SE +/- 1.82, N = 4SE +/- 11.61, N = 4SE +/- 3.23, N = 4983.51983.51983.17981.59980.15973.04969.73895.75

Java SciMark

Computational Test: Fast Fourier Transform

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Fast Fourier TransformNo MitigationsUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16Kernel VA Shadow30060090012001500SE +/- 10.97, N = 4SE +/- 20.28, N = 4SE +/- 22.48, N = 4SE +/- 6.57, N = 4SE +/- 9.53, N = 4SE +/- 3.66, N = 4SE +/- 2.27, N = 4SE +/- 3.62, N = 41589.151542.491536.051531.461512.961512.161510.991475.70

Java SciMark

Computational Test: Sparse Matrix Multiply

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Sparse Matrix MultiplyUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16No MitigationsUbuntu 18.04 - StockUbuntu 18.04 - nopti + spectre_v2=offKernel VA Shadow5001000150020002500SE +/- 0.29, N = 4SE +/- 0.63, N = 4SE +/- 1.73, N = 4SE +/- 1.26, N = 4SE +/- 7.49, N = 4SE +/- 5.20, N = 4SE +/- 145.51, N = 4SE +/- 7.37, N = 42293.982292.722292.472290.972286.302269.932136.402098.07

Java SciMark

Computational Test: Dense LU Matrix Factorization

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Dense LU Matrix FactorizationUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 - StockNo MitigationsKernel VA Shadow13002600390052006500SE +/- 36.64, N = 4SE +/- 46.04, N = 4SE +/- 52.51, N = 4SE +/- 42.66, N = 4SE +/- 55.23, N = 4SE +/- 10.80, N = 4SE +/- 40.09, N = 4SE +/- 18.47, N = 46130.976125.336094.486086.796050.755974.445942.705351.16

Java SciMark

Computational Test: Jacobi Successive Over-Relaxation

OpenBenchmarking.orgMflops, More Is BetterJava SciMark 2.0Computational Test: Jacobi Successive Over-RelaxationNo MitigationsUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16Kernel VA Shadow30060090012001500SE +/- 2.78, N = 4SE +/- 0.50, N = 4SE +/- 0.52, N = 4SE +/- 3.80, N = 4SE +/- 3.58, N = 4SE +/- 1.41, N = 4SE +/- 6.71, N = 4SE +/- 1.84, N = 41546.061454.861453.621449.411443.711438.301437.851415.71

CacheBench

Test: Read

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: ReadNo MitigationsKernel VA ShadowUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiUbuntu 18.04 - Stock16003200480064008000SE +/- 0.27, N = 3SE +/- 22.34, N = 3SE +/- 1.11, N = 3SE +/- 3.50, N = 3SE +/- 6.09, N = 3SE +/- 25.23, N = 3SE +/- 24.00, N = 3SE +/- 9.87, N = 37577.067095.363370.853361.623349.483349.243347.093331.041. (CC) gcc options: -lrt

CacheBench

Test: Write

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: WriteNo MitigationsUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - noptiUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - nopti + spectre_v2=offKernel VA Shadow6K12K18K24K30KSE +/- 1.50, N = 3SE +/- 268.56, N = 3SE +/- 274.58, N = 3SE +/- 33.86, N = 3SE +/- 360.65, N = 3SE +/- 213.11, N = 3SE +/- 273.21, N = 3SE +/- 11.91, N = 328034.5328015.9427992.6027691.7927660.0127374.1627073.3926327.811. (CC) gcc options: -lrt

CacheBench

Test: Read / Modify / Write

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchTest: Read / Modify / WriteNo MitigationsKernel VA ShadowUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16 - nopti10K20K30K40K50KSE +/- 5.58, N = 3SE +/- 7.83, N = 3SE +/- 184.20, N = 3SE +/- 281.73, N = 3SE +/- 248.96, N = 3SE +/- 228.49, N = 3SE +/- 466.25, N = 4SE +/- 272.63, N = 345636.5242855.8529447.1929291.5229269.2028987.5228912.5728703.971. (CC) gcc options: -lrt

ebizzy

OpenBenchmarking.orgRecords/s, More Is Betterebizzy 0.3Ubuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - nopti + spectre_v2=offNo MitigationsKernel VA Shadow60K120K180K240K300KSE +/- 583.28, N = 3SE +/- 1134.37, N = 3SE +/- 5241.71, N = 6SE +/- 894.59, N = 3SE +/- 7787.30, N = 6SE +/- 8371.52, N = 6SE +/- 56.17, N = 3SE +/- 55.38, N = 3276381271051261753260938257575256322535947681. (CC) gcc options: -pthread -lpthread -O3 -march=native

Timed LLVM Compilation

Time To Compile

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 4.0.1Time To CompileUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - StockNo MitigationsKernel VA Shadow2004006008001000SE +/- 0.17, N = 3SE +/- 0.27, N = 3SE +/- 0.09, N = 3SE +/- 0.42, N = 3SE +/- 0.25, N = 3SE +/- 0.60, N = 3SE +/- 1.73, N = 3SE +/- 1.01, N = 3734.00735.33735.34736.10739.77741.02929.71934.84

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-levelsNo MitigationsKernel VA Shadow48121620SE +/- 0.21, N = 5SE +/- 0.02, N = 314.5714.82

GIMP

Test: unsharp-mask

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.9.8Test: unsharp-maskNo MitigationsKernel VA Shadow510152025SE +/- 0.06, N = 3SE +/- 0.02, N = 320.6521.30

Redis

Test: LPUSH

OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 3.2.1Test: LPUSHNo MitigationsKernel VA Shadow200K400K600K800K1000KSE +/- 4531.94, N = 3SE +/- 1204.53, N = 3905651.27880130.04

WinSAT

Test: Disk

OpenBenchmarking.orgMB/s, More Is BetterWinSATTest: DiskNo MitigationsKernel VA Shadow306090120150SE +/- 21.49, N = 6SE +/- 32.92, N = 6114.27111.83MIN: 76.08 / MAX: 208.74MIN: 70.14 / MAX: 275.95

PyBench

Total For Average Test Times

OpenBenchmarking.orgMilliseconds, Fewer Is BetterPyBench 2018-02-16Total For Average Test TimesUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16Ubuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - StockUbuntu 18.04 - noptiNo MitigationsKernel VA Shadow30060090012001500SE +/- 2.40, N = 3SE +/- 1.20, N = 3SE +/- 2.40, N = 3SE +/- 1.00, N = 3SE +/- 2.08, N = 3SE +/- 2.03, N = 3SE +/- 3.71, N = 312841286128712871289129013951480

PHPBench

PHP Benchmark Suite

OpenBenchmarking.orgScore, More Is BetterPHPBench 0.8.1PHP Benchmark SuiteUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - StockUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16No MitigationsKernel VA Shadow140K280K420K560K700KSE +/- 1842.44, N = 3SE +/- 3162.10, N = 3SE +/- 3136.48, N = 3SE +/- 5347.65, N = 3SE +/- 3856.85, N = 3SE +/- 7319.66, N = 3SE +/- 2130.68, N = 3SE +/- 347.52, N = 3652306647880645987645778645293640013335634317611

OSBench

Test: Create Files

OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Create FilesUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - StockNo MitigationsKernel VA Shadow60120180240300SE +/- 0.02, N = 3SE +/- 0.08, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.07, N = 3SE +/- 0.09, N = 3SE +/- 0.15, N = 3SE +/- 0.67, N = 311.0311.2512.4012.8013.3013.55248.63266.721. (CC) gcc options: -lm

OSBench

Test: Launch Programs

OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Launch ProgramsUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.16Ubuntu 18.04 - StockNo MitigationsKernel VA Shadow110220330440550SE +/- 0.29, N = 3SE +/- 0.13, N = 3SE +/- 0.09, N = 3SE +/- 0.05, N = 3SE +/- 0.12, N = 3SE +/- 0.05, N = 3SE +/- 0.37, N = 3SE +/- 2.00, N = 336.6136.7637.0537.2439.8340.29494.21523.811. (CC) gcc options: -lm

OSBench

Test: Memory Allocations

OpenBenchmarking.orgNs Per Event, Fewer Is BetterOSBenchTest: Memory AllocationsUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 - noptiUbuntu 18.04 + Linux 4.16No MitigationsUbuntu 18.04 - StockKernel VA Shadow20406080100SE +/- 0.04, N = 3SE +/- 0.11, N = 3SE +/- 0.14, N = 3SE +/- 0.09, N = 3SE +/- 0.13, N = 3SE +/- 0.13, N = 3SE +/- 0.12, N = 3SE +/- 0.60, N = 372.3872.4672.5572.5875.0975.6776.3083.451. (CC) gcc options: -lm

GIMP

Test: resize

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: resizeUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.160.68851.3772.06552.7543.4425SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 32.742.752.853.06

GIMP

Test: auto-levels

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: auto-levelsUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.161.30052.6013.90155.2026.5025SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 35.335.375.405.78

GIMP

Test: unsharp-mask

OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.8.22Test: unsharp-maskUbuntu 18.04 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - nopti + spectre_v2=offUbuntu 18.04 + Linux 4.16 - noptiUbuntu 18.04 + Linux 4.163691215SE +/- 0.05, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.08, N = 39.939.9310.0310.83

Phoronix Test Suite v10.8.4