From owner-freebsd-virtualization@freebsd.org  Sat Feb 20 16:30:11 2016
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Date: Sat, 20 Feb 2016 23:13:51 +0700
From: Tinker <tinkr@openmailbox.org>
To: freebsd-virtualization@freebsd.org
Subject: What overhead should BHyVe incur vs. guest directly on bare metal,
 for memory mapped and non-memory-mapped IO to block device within the
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Just to get your rough approximation.

OpenBSD guest.

E5 Xeon CPU. SSD:s with 4 or 16KB physical sector size.

In the virtualized case, the guest accesses the physical storage via a 
virtio block device, and the host keeps the image within a ZFS (so it 
gets ZFS' checksumming) and