Date: Thu, 08 Apr 2021 15:42:18 +0100 From: Matt Churchyard <matt.home@userve.net> To: freebsd-virtualization@freebsd.org Subject: bhyve current windows status Message-ID: <7850c18aba62e6150f227f3c1168974c@userve.net>
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Hello, I'm after some general information on the current status/best practises for Windows on bhyve. Not entirely the correct place for this but then at the moment no-one else seems to really know the answers. Maybe I can help some of the other people who are just as unclear as me on what is actually the best information at this point. What are the current recommended devices/options for Windows (2019 server in my case) - especially with ZFS. Should I be specifying a 512/4096 sector/block size via bhyve and/or zfs? I assume nvme & virtio-net are the current best options but is there a preferred virtio driver version. Are any of the other virtio drivers of any use to be installed or just the network drivers? Are there any known problems with applications like AD/Exchange? I know that SQL 2012 had massive storage overhead issues on ZFS due to 512 byte writes, but I'm not sure if that still affects newer versions or other applications? The system I am currently using is a Xeon E5-2670, which I know was terrible before the TPR commit. My test system seems to run reasonably on 12.2 (although I'd be intruiged to compare against ESXi if I had the time), but do you think I would expect to see any significant gains by using a CPU with APICv? (not that I expect anyone has done any benchmarking of this) Are there any other changes in being worked on that are likely to have an impact on support or performance? I believe quite a bit of work is being done on the UEFI firmware but I expect that doesn't really affect much other than the boot process. I'm sure I saw reference to the devs having regular bhyve calls, but I have little idea what is currently being worked on. Thanks for any replies, Matt
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