Date: Mon, 12 Apr 2021 09:54:41 +1000 From: Jason Tubnor <jason@tubnor.net> To: Robert Crowston <crowston@protonmail.com> Cc: Peter Grehan <grehan@freebsd.org>, Matt Churchyard <matt.home@userve.net>, FreeBSD virtualization <freebsd-virtualization@freebsd.org> Subject: Re: bhyve current windows status Message-ID: <CACLnyCLaYpQOE0iSmQeXa7TqGvhVpm=LjDYdZ_6Qju19gZCqXQ@mail.gmail.com> In-Reply-To: <g1l869D_OwQvTV5cYHDYEGUOBGQFoO3x0H430c9uXy5ZFtrwVvQ8nAbCawhtrRz1wEWNV0mfmh_RusvuaRqNozlNFRrKxWiNptFGMga-UdE=@protonmail.com> References: <7850c18aba62e6150f227f3c1168974c@userve.net> <4d863f34-6df0-0b0a-f487-e492324e8752@freebsd.org> <CACLnyCJGVrotVKbKGKChvp8TRHwFdb=JbtY0_AJoGvgmp=mccA@mail.gmail.com> <g1l869D_OwQvTV5cYHDYEGUOBGQFoO3x0H430c9uXy5ZFtrwVvQ8nAbCawhtrRz1wEWNV0mfmh_RusvuaRqNozlNFRrKxWiNptFGMga-UdE=@protonmail.com>
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On Sun, 11 Apr 2021 at 20:07, Robert Crowston <crowston@protonmail.com> wrote: > nvme is faster than virtio-blk? It seems strange that a paravirtualized > driver would be slower. Is that because of the regression you mention? > > > Not saying it is slower, just not any faster than the NVMe presentation that we have discovered in production. NVMe is the general direction storage is taking, doesn't require the drivers to be injected at installation time and lower usability friction. The regression was due to a bug in the virtio-stor code that would nuke your storage as soon as the driver loaded after upgrading it the following boot. That was discussed on a bhyve call last year. It is no longer an issue with the latest driver if you wish to continue to use virtio-stor. Cheers, Jason.
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