KVM testing on Ubuntu 20.04 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/2102262-HA-RYZENLATE49.
ryzen-latencyProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelCompilerFile-SystemScreen ResolutionSystem Layerno affinityaff core 0-7aff core 8-15no aff server loadAMD Ryzen 7 1700 Eight-Core (7 Cores)QEMU Standard PC (Q35 + ICH9 2009) (rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org BIOS)Intel 82G33/G31/P35/P31 + ICH94096MB129GB QEMU HDDbochs-drmdrmfbIntel 82801IQEMU MonitorRed Hat Virtio deviceUbuntu 20.045.4.0-66-generic (x86_64)GCC 9.3.0ext41024x768KVMOpenBenchmarking.orgKernel Details- Transparent Huge Pages: madviseCompiler Details- --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++,gm2 --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-offload-targets=nvptx-none=/build/gcc-9-HskZEa/gcc-9-9.3.0/debian/tmp-nvptx/usr,hsa --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=auto --with-tune=generic --without-cuda-driver -v Processor Details- CPU Microcode: 0x1000065Security Details- itlb_multihit: Not affected + l1tf: Not affected + mds: Not affected + meltdown: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Full AMD retpoline IBPB: conditional STIBP: disabled RSB filling + srbds: Not affected + tsx_async_abort: Not affected
ryzen-latencycore-latency: Average Latency Between CPU CoresDifferenceno affinityaff core 0-7aff core 8-15no aff server load125.6751.51x166.61371.36x162.79091.37x259.037721.00xOpenBenchmarking.org
OpenBenchmarking.orgns, Fewer Is BetterCore-LatencyAverage Latency Between CPU Coresno affinityaff core 0-7aff core 8-15no aff server load60120180240300125.68166.61162.79259.04MIN: 53.97 / MAX: 279.29MIN: 53.92 / MAX: 266.58MIN: 54.21 / MAX: 270.66MIN: 2.92 / MAX: 953.241. (CXX) g++ options: -std=c++11 -pthread -O3
Phoronix Test Suite v10.8.4