VirtualBox Is Still Running Slower Than QEMU-KVM - Phoronix

VirtualBox Is Still Running Slower Than QEMU-KVM Written by Michael Larabel in Operating Systems on 9 January 2014 at 01:07 PM EST. Page 1 of 5. 22 Comments. Recently I ran some benchmarks looking at the performance of the Ubuntu 14.04 LTS development code and from there I tested the bare metal system, the same system with a Linux KVM instance of Ubuntu 14.04 itself, and then afterwards another VM

[masami256]

FS-MarkはVirtualBoxが圧倒的に速いけど、記事によると同期書き込み要求を無視するか、何らかのキャッシュを使ってるっぽいと。それ以外はQEMU-KVMのほうが性能良い。