Date: Thu, 16 Jan 2014 17:41:55 +0100 From: Sydney Meyer <meyer.sydney@googlemail.com> To: freebsd-virtualization@freebsd.org Subject: Xen PVHVM with FreeBSD10 Guest Message-ID: <9DF57091-9957-452D-8A15-C2267F66ABEC@googlemail.com>
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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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