On Tue, Jul 20, 2021 at 01:28:33AM +0000, Eric Wheeler wrote: > Hi Kent, > > I read your bcachefs snapshots doc recently, it looks like you've put a > lot of thought into it. Is it ready for testing? > > We use a lot of btrfs snapshots of VM images but the performance is pretty > poor and I'm looking forward to trying out bcachefs snapshots when it is > ready to try out. > > We also have many dm-thin deployments backed by /dev/bcache0 volumes that > work quite well, but dm-thin meta is always an ongoing maintenance issue. > (Don't run out of dm-thin meta space or *boom*!) > > If bcachefs can replace dm-thin with loopback files (or even better, > native bcachefs devices!) then I look forward to getting beyond > dm-thin into something more scalable. It's not ready just yet - but the initial performance numbers are _extremely_ encouraging, I'll be posting more soon!
