MDS Mitigation Impact Four Systems

MDS / Zombie Load mitigation impact tests by Michael Larabel on a future article.

HTML result view exported from: https://openbenchmarking.org/result/1905176-HV-MERGEDMDS66&grt&sro.

ProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen ResolutionOpenCLVulkanE3-1275 v68700K7980XE9900K MDS Mitigated MDS Vulnerable MDS Mitigated MDS Vulnerable MDS Mitigated MDS Vulnerable MDS Mitigated MDS VulnerableIntel Xeon E3-1275 v6 @ 4.20GHz (4 Cores / 8 Threads)ASUS P10S-M WS (4401 BIOS)Intel Xeon E3-1200 v6/7th16384MBSamsung SSD 970 EVO Plus 500GBIntel HD P630 3GB (1150MHz)Realtek ALC1150LG Ultra HD2 x Intel I210Ubuntu 19.045.0.0-15-generic (x86_64)GNOME Shell 3.32.0X Server 1.20.4modesetting 1.20.44.5 Mesa 19.0.2GCC 8.3.0ext43840x2160Intel Core i7-8700K @ 4.70GHz (6 Cores / 12 Threads)ASUS TUF Z370-PLUS GAMING (1802 BIOS)Intel 8th Gen Core128GB THNSN5128GPU7 TOSHIBAIntel UHD 630 3GB (1200MHz)Realtek ALC887-VDDELL P2415QIntel I219-VIntel Core i9-7980XE @ 4.20GHz (18 Cores / 36 Threads)ASUS PRIME X299-A (1704 BIOS)Intel Sky Lake-E DMI3 RegistersSamsung SSD 970 EVO 500GBNVIDIA NV120 12GBRealtek ALC1220ASUS PB2784.3 Mesa 19.0.22560x1440Intel Core i9-9900K @ 5.00GHz (8 Cores / 16 Threads)ASUS PRIME Z390-A (0802 BIOS)Intel Cannon Lake PCHSamsung SSD 970 EVO 250GB + 2000GB SABRENTNVIDIA GeForce GTX 1080 Ti 11GB (1480/5508MHz)Acer B286HKNVIDIA 430.094.6.0OpenCL 2.0 beignet 1.3 + OpenCL 1.2 CUDA 10.1.1201.1.993840x2160OpenBenchmarking.orgCompiler Details- --build=x86_64-linux-gnu --disable-vtable-verify --disable-werror --enable-bootstrap --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- NONE / errors=remount-ro,relatime,rwProcessor Details- Scaling Governor: intel_pstate powersaveJava Details- OpenJDK Runtime Environment (build 11.0.3+7-Ubuntu-1ubuntu219.04.1)Python Details- Python 2.7.16 + Python 3.7.3Security Details- E3-1275 v6: MDS Mitigated: KPTI + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling - E3-1275 v6: MDS Vulnerable: KPTI + l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Vulnerable; SMT vulnerable + meltdown: Mitigation of PTI + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling - 8700K: MDS Mitigated: KPTI + __user pointer sanitization + Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + SSB disabled via prctl and seccomp + PTE Inversion- 8700K: MDS Vulnerable: KPTI + __user pointer sanitization + Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + SSB disabled via prctl and seccomp + PTE Inversion- 7980XE: MDS Mitigated: KPTI + __user pointer sanitization + Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + SSB disabled via prctl and seccomp + PTE Inversion; VMX: conditional cache flushes SMT vulnerable- 7980XE: MDS Vulnerable: KPTI + __user pointer sanitization + Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling + SSB disabled via prctl and seccomp + PTE Inversion; VMX: conditional cache flushes SMT vulnerable- 9900K: MDS Mitigated: l1tf: Not affected + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling - 9900K: MDS Vulnerable: l1tf: Not affected + mds: Vulnerable; SMT vulnerable + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

bork: File Encryption Timecompilebench: Initial Createctx-clock: Context Switch Timedav1d: Summer Nature 4Kdav1d: Summer Nature 1080pethr: TCP - Latency - 1ethr: TCP - Latency - 32gimp: resizegimp: rotategimp: auto-levelsgimp: unsharp-maskglibc-bench: ffsglibc-bench: ffsllglibc-bench: pthread_oncehackbench: 32 - Processmcperf: Getmcperf: Setopenssl: RSA 4096-bit Performanceosbench: Create Filesosbench: Create Threadsosbench: Launch Programsosbench: Memory Allocationspgbench: Buffer Test - Normal Load - Read Onlypgbench: Buffer Test - Normal Load - Read Writepostmark: Disk Transaction Performanceredis: SETselenium: Jetstream 2 - Firefoxsockperf: Throughputsockperf: Latency Ping Pongsockperf: Latency Under Loadsqlite: Timed SQLite Insertionsstress-ng: Semaphoresstress-ng: Socket Activitystress-ng: Context Switchingstress-ng: System V Message Passingt-test1: 2build-linux-kernel: Time To Compilebuild-llvm: Time To Compiley-cruncher: Calculating 500M Pi DigitsE3-1275 v68700K7980XE9900K MDS Mitigated MDS Vulnerable MDS Mitigated MDS Vulnerable MDS Mitigated MDS Vulnerable MDS Mitigated MDS Vulnerable6.61533105048.0613.9210.1410.169.0113.6315.3217.091.831.831.8320112873676289122013.6011.1248.8772.3811382344936250209270373.215464983.0817.9240.1749827723824170646645653286.5213174840.716.3856558847.9813.879.169.178.8613.4414.9416.671.711.711.7116314232178867122112.9410.5945.5470.2912016246706697215852373.895966262.9315.5540.0156572694867200944272296896.1212974940.696.0359192032.429.629.419.277.8912.1413.3715.261.631.631.63122.3214552690215198012.0510.1531.9163.5317854724577142239036081.256176282.8118.1674.5845392115806326848772789815.5083.7147429.316.0155851332.269.588.748.737.7811.8412.9714.901.521.521.5292.6716030593858197011.439.8429.8261.4918886321737654244114781.146999022.6017.1973.8650068318039412871698912455.1482.1646629.286.3966262723.8212.5015.4515.3411.5916.6920.0425.711.731.731.7354.7011213662623468812.5615.1537.9970.3348511956356578199173765.524690943.9133.2838.733078280121731424830376928179.2739.3620513.746.3268937123.7512.5814.5714.4611.4216.5319.5424.601.631.631.6343.8111775766036468412.1014.7036.9968.4550742756636944209087366.824893303.8030.5738.723170366166511983778780698618.4138.6519513.865.3264649326.627.718.378.426.7611.3312.6214.891.431.431.4380.9016275098699263410.979.0123.0557.42244587121298064268456087.457204411.279.1942.26460189081523801331101360794.7865.3937526.165.1765913326.587.737.827.836.6711.1312.2814.511.331.331.3360.90176496105187264010.288.1621.6756.30256611120748620267831188.567957161.229.8441.93510779697125511771115613534.5964.4036326.11OpenBenchmarking.org

Bork File Encrypter

File Encryption Time

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterBork File Encrypter 1.4File Encryption TimeMDS MitigatedMDS Vulnerable246810SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.15, N = 15SE +/- 0.04, N = 3SE +/- 0.01, N = 3SE +/- 0.07, N = 3SE +/- 0.05, N = 36.396.326.036.015.325.176.616.38

Compile Bench

Test: Initial Create

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgMB/s, More Is BetterCompile Bench 0.6Test: Initial CreateMDS MitigatedMDS Vulnerable150300450600750SE +/- 6.62, N = 3SE +/- 9.91, N = 3SE +/- 11.75, N = 3SE +/- 17.65, N = 3SE +/- 7.12, N = 3SE +/- 11.13, N = 3SE +/- 3.42, N = 3SE +/- 9.09, N = 3662689591558646659533565

ctx_clock

Context Switch Time

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgClocks, Fewer Is Betterctx_clockContext Switch TimeMDS MitigatedMDS Vulnerable2004006008001000SE +/- 0.67, N = 3SE +/- 0.67, N = 3SE +/- 2.00, N = 3SE +/- 0.67, N = 3SE +/- 1.33, N = 3SE +/- 0.67, N = 36273719205134931331050588

dav1d

Video Input: Summer Nature 4K

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is Betterdav1d 0.3Video Input: Summer Nature 4KMDS MitigatedMDS Vulnerable1122334455SE +/- 0.09, N = 3SE +/- 0.14, N = 3SE +/- 0.09, N = 3SE +/- 0.05, N = 3SE +/- 0.02, N = 3SE +/- 0.06, N = 3SE +/- 0.03, N = 3SE +/- 0.06, N = 323.8223.7532.4232.2626.6226.5848.0647.981. (CC) gcc options: -pthread

dav1d

Video Input: Summer Nature 1080p

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is Betterdav1d 0.3Video Input: Summer Nature 1080pMDS MitigatedMDS Vulnerable48121620SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 3SE +/- 0.01, N = 3SE +/- 0.05, N = 3SE +/- 0.06, N = 3SE +/- 0.04, N = 312.5012.589.629.587.717.7313.9213.871. (CC) gcc options: -pthread

Ethr

Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 1

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgMicroseconds, Fewer Is BetterEthr 2019-01-02Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 1MDS MitigatedMDS Vulnerable48121620SE +/- 0.11, N = 3SE +/- 0.10, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.03, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 315.4514.579.418.748.377.8210.149.16

Ethr

Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 32

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgMicroseconds, Fewer Is BetterEthr 2019-01-02Server Address: localhost - Protocol: TCP - Test: Latency - Threads: 32MDS MitigatedMDS Vulnerable48121620SE +/- 0.23, N = 3SE +/- 0.03, N = 3SE +/- 0.05, N = 3SE +/- 0.03, N = 3SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 315.3414.469.278.738.427.8310.169.17

GIMP

Test: resize

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.10.8Test: resizeMDS MitigatedMDS Vulnerable3691215SE +/- 0.12, N = 3SE +/- 0.12, N = 3SE +/- 0.08, N = 3SE +/- 0.09, N = 3SE +/- 0.05, N = 3SE +/- 0.05, N = 3SE +/- 0.10, N = 3SE +/- 0.04, N = 311.5911.427.897.786.766.679.018.86

GIMP

Test: rotate

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.10.8Test: rotateMDS MitigatedMDS Vulnerable48121620SE +/- 0.02, N = 3SE +/- 0.08, N = 3SE +/- 0.10, N = 12SE +/- 0.02, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 316.6916.5312.1411.8411.3311.1313.6313.44

GIMP

Test: auto-levels

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.10.8Test: auto-levelsMDS MitigatedMDS Vulnerable510152025SE +/- 0.15, N = 3SE +/- 0.04, N = 3SE +/- 0.06, N = 3SE +/- 0.02, N = 3SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.09, N = 3SE +/- 0.02, N = 320.0419.5413.3712.9712.6212.2815.3214.94

GIMP

Test: unsharp-mask

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterGIMP 2.10.8Test: unsharp-maskMDS MitigatedMDS Vulnerable612182430SE +/- 0.32, N = 5SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.05, N = 3SE +/- 0.03, N = 3SE +/- 0.01, N = 3SE +/- 0.03, N = 3SE +/- 0.02, N = 325.7124.6015.2614.9014.8914.5117.0916.67

glibc bench

Benchmark: ffs

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgnanoseconds, Fewer Is Betterglibc bench 1.0Benchmark: ffsMDS MitigatedMDS Vulnerable0.41180.82361.23541.64722.059SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.731.631.631.521.431.331.831.71

glibc bench

Benchmark: ffsll

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgnanoseconds, Fewer Is Betterglibc bench 1.0Benchmark: ffsllMDS MitigatedMDS Vulnerable0.41180.82361.23541.64722.059SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.731.631.631.521.431.331.831.71

glibc bench

Benchmark: pthread_once

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgnanoseconds, Fewer Is Betterglibc bench 1.0Benchmark: pthread_onceMDS MitigatedMDS Vulnerable0.41180.82361.23541.64722.059SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.00, N = 31.731.631.631.521.431.331.831.71

Hackbench

Count: 32 - Type: Process

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterHackbenchCount: 32 - Type: ProcessMDS MitigatedMDS Vulnerable4080120160200SE +/- 0.65, N = 3SE +/- 0.55, N = 3SE +/- 0.35, N = 3SE +/- 0.27, N = 3SE +/- 0.08, N = 3SE +/- 0.63, N = 3SE +/- 1.86, N = 3SE +/- 0.90, N = 354.7043.81122.3292.6780.9060.90201.00163.001. (CC) gcc options: -lpthread

Memcached mcperf

Method: Get

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgOperations Per Second, More Is BetterMemcached mcperf 1.5.10Method: GetMDS MitigatedMDS Vulnerable40K80K120K160K200KSE +/- 121.94, N = 3SE +/- 61.37, N = 3SE +/- 845.05, N = 3SE +/- 1443.03, N = 3SE +/- 1123.43, N = 3SE +/- 411.32, N = 3SE +/- 336.19, N = 3SE +/- 1267.41, N = 31121361177571455261603051627501764961287361423211. (CC) gcc options: -O2 -lm -rdynamic

Memcached mcperf

Method: Set

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgOperations Per Second, More Is BetterMemcached mcperf 1.5.10Method: SetMDS MitigatedMDS Vulnerable20K40K60K80K100KSE +/- 810.34, N = 3SE +/- 443.60, N = 3SE +/- 288.97, N = 3SE +/- 511.87, N = 3SE +/- 719.62, N = 3SE +/- 840.37, N = 3SE +/- 403.15, N = 3SE +/- 557.15, N = 3626236603690215938589869910518776289788671. (CC) gcc options: -O2 -lm -rdynamic

OpenSSL

RSA 4096-bit Performance

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSigns Per Second, More Is BetterOpenSSL 1.1.1RSA 4096-bit PerformanceMDS MitigatedMDS Vulnerable10002000300040005000SE +/- 6.87, N = 3SE +/- 11.39, N = 3SE +/- 1.63, N = 3SE +/- 3.45, N = 3SE +/- 5.96, N = 3SE +/- 6.72, N = 3SE +/- 1.55, N = 3SE +/- 2.29, N = 3468846841980197026342640122012211. (CC) gcc options: -pthread -m64 -O3 -lssl -lcrypto -ldl

OSBench

Test: Create Files

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Create FilesMDS MitigatedMDS Vulnerable3691215SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.06, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.05, N = 3SE +/- 0.03, N = 312.5612.1012.0511.4310.9710.2813.6012.941. (CC) gcc options: -lm

OSBench

Test: Create Threads

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Create ThreadsMDS MitigatedMDS Vulnerable48121620SE +/- 0.09, N = 3SE +/- 0.25, N = 3SE +/- 0.17, N = 3SE +/- 0.12, N = 15SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.12, N = 7SE +/- 0.11, N = 1515.1514.7010.159.849.018.1611.1210.591. (CC) gcc options: -lm

OSBench

Test: Launch Programs

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgus Per Event, Fewer Is BetterOSBenchTest: Launch ProgramsMDS MitigatedMDS Vulnerable1122334455SE +/- 0.51, N = 4SE +/- 0.17, N = 3SE +/- 0.03, N = 3SE +/- 0.12, N = 3SE +/- 0.16, N = 3SE +/- 0.04, N = 3SE +/- 0.19, N = 3SE +/- 0.15, N = 337.9936.9931.9129.8223.0521.6748.8745.541. (CC) gcc options: -lm

OSBench

Test: Memory Allocations

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgNs Per Event, Fewer Is BetterOSBenchTest: Memory AllocationsMDS MitigatedMDS Vulnerable1632486480SE +/- 0.13, N = 3SE +/- 0.18, N = 3SE +/- 0.07, N = 3SE +/- 0.03, N = 3SE +/- 0.07, N = 3SE +/- 0.05, N = 3SE +/- 0.14, N = 3SE +/- 0.06, N = 370.3368.4563.5361.4957.4256.3072.3870.291. (CC) gcc options: -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Normal Load - Mode: Read Only

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read OnlyMDS MitigatedMDS Vulnerable110K220K330K440K550KSE +/- 1883.54, N = 3SE +/- 1812.16, N = 3SE +/- 242.69, N = 3SE +/- 533.34, N = 3SE +/- 282.16, N = 3SE +/- 977.04, N = 3SE +/- 254.97, N = 3SE +/- 209.97, N = 34851195074271785471888632445872566111138231201621. (CC) gcc options: -fno-strict-aliasing -fwrapv -O2 -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

PostgreSQL pgbench

Scaling: Buffer Test - Test: Normal Load - Mode: Read Write

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgTPS, More Is BetterPostgreSQL pgbench 10.3Scaling: Buffer Test - Test: Normal Load - Mode: Read WriteMDS MitigatedMDS Vulnerable3K6K9K12K15KSE +/- 55.88, N = 3SE +/- 40.51, N = 3SE +/- 11.29, N = 3SE +/- 33.86, N = 15SE +/- 121.27, N = 3SE +/- 44.02, N = 3SE +/- 60.22, N = 5SE +/- 18.33, N = 356355663245721731212912074449346701. (CC) gcc options: -fno-strict-aliasing -fwrapv -O2 -lpgcommon -lpgport -lpq -lpthread -lrt -lcrypt -ldl -lm

PostMark

Disk Transaction Performance

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgTPS, More Is BetterPostMark 1.51Disk Transaction PerformanceMDS MitigatedMDS Vulnerable2K4K6K8K10KSE +/- 79.00, N = 3SE +/- 59.33, N = 3657869447142765480648620625066971. (CC) gcc options: -O3

Redis

Test: SET

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgRequests Per Second, More Is BetterRedis 4.0.8Test: SETMDS MitigatedMDS Vulnerable600K1200K1800K2400K3000KSE +/- 18836.43, N = 9SE +/- 17068.89, N = 3SE +/- 56535.11, N = 15SE +/- 65120.56, N = 12SE +/- 39843.96, N = 4SE +/- 54931.36, N = 15SE +/- 23688.81, N = 6SE +/- 16368.00, N = 3199173720908732390360244114726845602678311209270321585231. (CC) gcc options: -ggdb -rdynamic -lm -ldl -pthread

Selenium

Benchmark: Jetstream 2 - Browser: Firefox

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgScore, More Is BetterSeleniumBenchmark: Jetstream 2 - Browser: FirefoxMDS MitigatedMDS Vulnerable20406080100SE +/- 0.39, N = 3SE +/- 0.62, N = 3SE +/- 0.36, N = 3SE +/- 1.31, N = 3SE +/- 0.75, N = 3SE +/- 0.41, N = 3SE +/- 0.68, N = 3SE +/- 0.24, N = 365.5266.8281.2581.1487.4588.5673.2173.891. firefox 66.0.5

Sockperf

Test: Throughput

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgMessages Per Second, More Is BetterSockperf 3.4Test: ThroughputMDS MitigatedMDS Vulnerable200K400K600K800K1000KSE +/- 4821.96, N = 5SE +/- 3710.34, N = 5SE +/- 7438.77, N = 5SE +/- 6710.15, N = 5SE +/- 8685.40, N = 6SE +/- 3490.14, N = 5SE +/- 6082.67, N = 5SE +/- 5413.08, N = 254690944893306176286999027204417957165464985966261. (CXX) g++ options: --param -O3 -rdynamic -ldl -lpthread

Sockperf

Test: Latency Ping Pong

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgusec, Fewer Is BetterSockperf 3.4Test: Latency Ping PongMDS MitigatedMDS Vulnerable0.87981.75962.63943.51924.399SE +/- 0.03, N = 25SE +/- 0.05, N = 5SE +/- 0.01, N = 5SE +/- 0.03, N = 5SE +/- 0.25, N = 26SE +/- 0.24, N = 26SE +/- 0.02, N = 5SE +/- 0.02, N = 53.913.802.812.601.271.223.082.931. (CXX) g++ options: --param -O3 -rdynamic -ldl -lpthread

Sockperf

Test: Latency Under Load

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgusec, Fewer Is BetterSockperf 3.4Test: Latency Under LoadMDS MitigatedMDS Vulnerable816243240SE +/- 1.56, N = 25SE +/- 2.32, N = 25SE +/- 0.88, N = 20SE +/- 1.18, N = 25SE +/- 1.84, N = 26SE +/- 2.01, N = 26SE +/- 1.54, N = 20SE +/- 1.32, N = 2033.2830.5718.1617.199.199.8417.9215.551. (CXX) g++ options: --param -O3 -rdynamic -ldl -lpthread

SQLite

Timed SQLite Insertions

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterSQLite 3.22Timed SQLite InsertionsMDS MitigatedMDS Vulnerable20406080100SE +/- 0.00, N = 3SE +/- 0.00, N = 3SE +/- 0.25, N = 3SE +/- 0.54, N = 3SE +/- 0.05, N = 3SE +/- 0.04, N = 3SE +/- 0.02, N = 3SE +/- 0.13, N = 338.7338.7274.5873.8642.2641.9340.1740.011. (CC) gcc options: -O2 -ldl -lpthread

Stress-NG

Test: Semaphores

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgBogo Ops/s, More Is BetterStress-NG 0.07.26Test: SemaphoresMDS MitigatedMDS Vulnerable1.2M2.4M3.6M4.8M6MSE +/- 20387.33, N = 3SE +/- 27955.65, N = 3SE +/- 5157.96, N = 3SE +/- 10965.18, N = 3SE +/- 52741.90, N = 3SE +/- 69595.70, N = 4SE +/- 22369.03, N = 3SE +/- 27858.47, N = 3307828031703664539211500683146018905107796498277256572691. (CC) gcc options: -O2 -std=gnu99 -lm -lcrypt -lrt -lpthread -laio -lc

Stress-NG

Test: Socket Activity

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgBogo Ops/s, More Is BetterStress-NG 0.07.26Test: Socket ActivityMDS MitigatedMDS Vulnerable4K8K12K16K20KSE +/- 121.52, N = 3SE +/- 300.65, N = 12SE +/- 51.09, N = 12SE +/- 5.59, N = 3SE +/- 61.55, N = 3SE +/- 32.48, N = 3SE +/- 48.24, N = 3SE +/- 95.69, N = 1512173166515806803981529712382448671. (CC) gcc options: -O2 -std=gnu99 -lm -lcrypt -lrt -lpthread -laio -lc

Stress-NG

Test: Context Switching

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgBogo Ops/s, More Is BetterStress-NG 0.07.26Test: Context SwitchingMDS MitigatedMDS Vulnerable4M8M12M16M20MSE +/- 25426.96, N = 3SE +/- 40637.72, N = 3SE +/- 40675.49, N = 15SE +/- 54538.02, N = 5SE +/- 20144.15, N = 3SE +/- 92120.31, N = 3SE +/- 5690.93, N = 3SE +/- 19889.50, N = 314248303198377873268487412871638013315511771170646620094421. (CC) gcc options: -O2 -std=gnu99 -lm -lcrypt -lrt -lpthread -laio -lc

Stress-NG

Test: System V Message Passing

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgBogo Ops/s, More Is BetterStress-NG 0.07.26Test: System V Message PassingMDS MitigatedMDS Vulnerable2M4M6M8M10MSE +/- 1582.27, N = 3SE +/- 3488.56, N = 3SE +/- 747.66, N = 3SE +/- 6466.94, N = 3SE +/- 11081.94, N = 3SE +/- 15229.54, N = 3SE +/- 206175.33, N = 12SE +/- 97616.61, N = 376928178069861727898198912451013607911561353456532872296891. (CC) gcc options: -O2 -std=gnu99 -lm -lcrypt -lrt -lpthread -laio -lc

t-test1

Threads: 2

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is Bettert-test1 2017-01-13Threads: 2MDS MitigatedMDS Vulnerable3691215SE +/- 0.13, N = 15SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.01, N = 3SE +/- 0.04, N = 3SE +/- 0.03, N = 3SE +/- 0.02, N = 39.278.415.505.144.784.596.526.121. (CC) gcc options: -pthread

Timed Linux Kernel Compilation

Time To Compile

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 4.18Time To CompileMDS MitigatedMDS Vulnerable306090120150SE +/- 0.33, N = 13SE +/- 0.34, N = 12SE +/- 0.90, N = 3SE +/- 0.90, N = 3SE +/- 0.73, N = 3SE +/- 0.87, N = 3SE +/- 0.82, N = 3SE +/- 0.62, N = 339.3638.6583.7182.1665.3964.40131.00129.00

Timed LLVM Compilation

Time To Compile

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterTimed LLVM Compilation 6.0.1Time To CompileMDS MitigatedMDS Vulnerable160320480640800205195474466375363748749

Y-Cruncher

Calculating 500M Pi Digits

7980XE8700K9900KE3-1275 v6OpenBenchmarking.orgSeconds, Fewer Is BetterY-Cruncher 0.7.7Calculating 500M Pi DigitsMDS MitigatedMDS Vulnerable918273645SE +/- 0.02, N = 3SE +/- 0.02, N = 3SE +/- 0.00, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.01, N = 3SE +/- 0.02, N = 3SE +/- 0.02, N = 313.7413.8629.3129.2826.1626.1140.7140.69

Phoronix Test Suite v10.8.5