Re: BHYVE_SNAPSHOT
- Reply: Warner Losh : "Re: BHYVE_SNAPSHOT"
- Reply: Tomek CEDRO : "Re: BHYVE_SNAPSHOT"
- In reply to: Tomek CEDRO : "Re: BHYVE_SNAPSHOT"
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Date: Mon, 01 May 2023 00:45:56 UTC
whats the meaning of o_O ? Il lun 1 mag 2023, 02:04 Tomek CEDRO <tomek@cedro.info> ha scritto: > o_O > > -- > CeDeROM, SQ7MHZ, http://www.tomek.cedro.info > > On Sun, Apr 30, 2023, 23:42 Matthew Grooms <mgrooms@shrew.net> wrote: > >> On 4/29/23 06:17, void wrote: >> > Hi, >> > >> > Where can I read up about the recently introduced BHYVE_SNAPSHOT ? >> > >> > I can only find terse information about what it does (in man 5 src.conf) >> > but not about how to use it and/or why. >> >> This began as sponsored student work with the Politehnica University of >> Bucharest back in 2016 with an eye toward developing Live MIgration as a >> feature. The initial bhyve save/restore patch was committed back in 2020 >> ... >> >> https://reviews.freebsd.org/rS360648 >> >> Student projects related to bhyve continued until last year, but we gave >> up due to there being such a massive accumulation of patches with no >> path to getting them committed. We tried reaching out to project >> maintainers and the FreeBSD foundation alike for support and feedback, >> but there seems to be little to no interest. There have also been >> attempts by companies that rely on these features to and get them >> improved and committed. Unfortunately they don't appear to be having >> much luck either ... >> >> https://reviews.freebsd.org/D38858#885651 >> >> Would you like to see support for VM snapshots in the generic kernel? >> How about support for saving/restore checkpoints using QCOW2, VMDK via >> libvdsk? How about support for warm or live migration? How about USB >> device pass-through? There are experimental patches for all these >> features that were developed by students at UPB. In a lot of cases, >> there are open reviews that have been waiting on feedback for ages. Here >> is a a presentation given by Elena from UPB just last month at the >> FreeBSD devsumit in Tokyo ... >> >> >> https://wiki.freebsd.org/DevSummit/202303?action=AttachFile&do=view&target=Presentation+-+bhyvecon.pdf >> >> The case is quite plain. I'm not sure what the solution is to this >> problem. I'd love to hear feedback from the community about how I've got >> this completely wrong and how the course could be corrected. That would >> be something. >> >> -Matthew >> >> >> >>