KVM testing on Ubuntu 16.04 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1804034-FO-CLOUDIMG337.
cloudimgProcessorMotherboardChipsetMemoryDiskGraphicsNetworkOSKernelCompilerFile-SystemSystem Layeraiostress01aiostress02Intel Core 2 Duo P9xxx @ 3.00GHz (1 Core)OpenStack Foundation Nova v16.0.3 (1.10.2-1ubuntu1~cloud0 BIOS)Intel 440FX- 82441FX PMC1 x 2048 MB RAM QEMU39GBCirrus Logic GD 5446Red Hat Virtio deviceUbuntu 16.044.4.0-116-generic (x86_64)GCC 5.4.0 20160609ext4KVMOpenBenchmarking.orgCompiler Details- --build=x86_64-linux-gnu --disable-browser-plugin --disable-vtable-verify --disable-werror --enable-checking=release --enable-clocale=gnu --enable-gnu-unique-object --enable-gtk-cairo --enable-java-awt=gtk --enable-java-home --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --enable-libmpx --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-arch-directory=amd64 --with-default-libstdcxx-abi=new --with-multilib-list=m32,m64,mx32 --with-tune=generic -v Disk Details- none / data=ordered,relatime,rwSecurity Details- KPTI + OSB (observable speculation barrier Intel v6) + Full generic retpoline Protection
cloudimgaio-stress: Rand WriteDifferenceStandard ErrorStandard Deviationaiostress01aiostress0212.831.00x0.192.54%55.444.32x4.4519.66%OpenBenchmarking.org
OpenBenchmarking.orgMB/s, More Is BetterAIO-Stress 0.21Test: Random Writeaiostress01aiostress021224364860SE +/- 0.19, N = 3SE +/- 4.45, N = 612.8355.441. (CC) gcc options: -pthread -laio
Phoronix Test Suite v10.8.4