Good Evening, I am running CentOS 6.6 x86_64 as a KVM host and have a number of guests running. After some experimenting I have noticed something curious, FreeBSD disk performance seems to be just over half of that of a Linux guest with an identical configuration. >From my understanding virtio is included in FreeBSD 10.0 onwards. My CentOS guest has approx 130MB/s when using dd to read /dev/zero and write it to a file on the guest file system. This is about the same when doing the same on the hypervisor it's self. The stats are gained using iotop on the hypervisor while the test is performed. However the FreeBSD guest gets about 70MB/s maximum when performing the same test and is running FreeBSD 10.1 Has anyone seen this before, is it a known issue or expected behaviour? I have been scratching my head about it for a number of days now. Best Regards, Greg Langford -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
