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KVM testing on CentOS Linux 7 via the Phoronix Test Suite.

HTML result view exported from: https://openbenchmarking.org/result/1911141-AS-E7462773751.

eProcessorMotherboardChipsetMemoryDiskGraphicsNetworkOSKernelCompilerFile-SystemScreen ResolutionSystem Layerlinode-standard4 x AMD EPYC 7501 32-Core (4 Cores)QEMU Standard PC (Q35 + ICH9 2009) (rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org BIOS)Intel 82G33/G31/P35/P31 + ICH91 x 8192 MB RAM QEMU171GB QEMU HDD + QEMU HDDbochsdrmfbRed Hat Virtio deviceCentOS Linux 73.10.0-1062.4.1.el7.x86_64 (x86_64)GCC 4.8.5 20150623ext41024x768KVMOpenBenchmarking.org- --build=x86_64-redhat-linux --disable-libgcj --disable-libunwind-exceptions --enable-__cxa_atexit --enable-bootstrap --enable-checking=release --enable-gnu-indirect-function --enable-gnu-unique-object --enable-initfini-array --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-arch_32=x86-64 --with-linker-hash-style=gnu --with-tune=generic - SELinux + l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of Load fences usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Full retpoline IBPB

eramspeed: Integer Addramspeed: Integer Copyramspeed: Integer Scaleramspeed: Floating-Point Addstream: Addstream: Copystream: Scaletinymembench: Standard Memcpytinymembench: Standard Memsetmbw: Memory Copy - 1024 MiBmbw: Memory Copy, Fixed Block Size - 1024 MiBcachebench: Read Cachecachebench: Write Cachelinode-standard20339.9118527.7616858.1320597.6825348.6735072.6023278.767860.207777.897858.134057.841676.4715898.25OpenBenchmarking.org

RAMspeed SMP

Integer Add

OpenBenchmarking.orgMB/s, More Is BetterRAMspeed SMP 3.5.0Integer Addlinode-standard4K8K12K16K20K20339.911. (CC) gcc options: -O3 -march=native

RAMspeed SMP

Integer Copy

OpenBenchmarking.orgMB/s, More Is BetterRAMspeed SMP 3.5.0Integer Copylinode-standard4K8K12K16K20K18527.761. (CC) gcc options: -O3 -march=native

RAMspeed SMP

Integer Scale

OpenBenchmarking.orgMB/s, More Is BetterRAMspeed SMP 3.5.0Integer Scalelinode-standard4K8K12K16K20K16858.131. (CC) gcc options: -O3 -march=native

RAMspeed SMP

Floating-Point Add

OpenBenchmarking.orgMB/s, More Is BetterRAMspeed SMP 3.5.0Floating-Point Addlinode-standard4K8K12K16K20K20597.681. (CC) gcc options: -O3 -march=native

Stream

Add

OpenBenchmarking.orgMB/s, More Is BetterStream 2013-01-17Addlinode-standard5K10K15K20K25KSE +/- 532.26, N = 2125348.671. (CC) gcc options: -O3 -march=native -fopenmp

Stream

Copy

OpenBenchmarking.orgMB/s, More Is BetterStream 2013-01-17Copylinode-standard8K16K24K32K40KSE +/- 602.23, N = 535072.601. (CC) gcc options: -O3 -march=native -fopenmp

Stream

Scale

OpenBenchmarking.orgMB/s, More Is BetterStream 2013-01-17Scalelinode-standard5K10K15K20K25KSE +/- 563.21, N = 523278.761. (CC) gcc options: -O3 -march=native -fopenmp

Tinymembench

Standard Memcpy

OpenBenchmarking.orgMB/s, More Is BetterTinymembench 2018-05-28Standard Memcpylinode-standard2K4K6K8K10KSE +/- 939.46, N = 97860.201. (CC) gcc options: -O2 -lm

Tinymembench

Standard Memset

OpenBenchmarking.orgMB/s, More Is BetterTinymembench 2018-05-28Standard Memsetlinode-standard17003400510068008500SE +/- 830.09, N = 97777.891. (CC) gcc options: -O2 -lm

MBW

Test: Memory Copy - Array Size: 1024 MiB

OpenBenchmarking.orgMiB/s, More Is BetterMBW 2018-09-08Test: Memory Copy - Array Size: 1024 MiBlinode-standard2K4K6K8K10KSE +/- 556.07, N = 157858.131. (CC) gcc options: -O3 -march=native

MBW

Test: Memory Copy, Fixed Block Size - Array Size: 1024 MiB

OpenBenchmarking.orgMiB/s, More Is BetterMBW 2018-09-08Test: Memory Copy, Fixed Block Size - Array Size: 1024 MiBlinode-standard9001800270036004500SE +/- 187.92, N = 154057.841. (CC) gcc options: -O3 -march=native

CacheBench

Read Cache

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchRead Cachelinode-standard400800120016002000SE +/- 13.38, N = 31676.47MIN: 1535.39 / MAX: 1755.871. (CC) gcc options: -lrt

CacheBench

Write Cache

OpenBenchmarking.orgMB/s, More Is BetterCacheBenchWrite Cachelinode-standard3K6K9K12K15KSE +/- 133.02, N = 315898.25MIN: 11801.09 / MAX: 18496.631. (CC) gcc options: -lrt

Phoronix Test Suite v10.8.4