Hello everyone,

does someone know how to check if the paravirtualized I/O drivers from Xen are 
loaded/working in FreeBSD 10? To my understanding it isn't necessary anymore to 
compile a custom kernel with PVHVM enabled, right? In /var/log/messages/ I can 
see the XN* and XBD* devices and the network performance is very good 
(saturated Gb) compared to qemu-emulated, but the disk performance is not as 
well, infact, it is even slower than emulated with qemu (0.10.2). I did some 
test with dd and bonnie++, turned caching on the host off and tried to directly 
sync to disk, PVonHVM is averagely 15-20 % slower than QEMU at throughput. Both 
VM's are running on the same host on a Xen 4.1 Hypervisor with QEMU 0.10.2 on a 
Debian Linux 3.2 Kernel as Dom0.
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