On Wed, Jan 08, 2025 at 10:09:12AM +0100, Christoph Hellwig wrote: > On Wed, Jan 08, 2025 at 04:13:01PM +0800, Ming Lei wrote: > > It is backed by virtual memory, which can be big enough because of swap, and > > Good luck getting half way decent performance out of swapping for a 50TB > data set. Or even a partially filled one which really is the use case > here so it might only be a TB or so. > > > it is also easy to extend to file backed support since zloop doesn't store > > zone meta data, which is similar to ram backed zoned actually. > > No, zloop does store write point in the file sizse of each zone. That's > sorta the whole point becauce it enables things like mount and even > power fail testing. > > All of this is mentioned explicitly in the commit logs, documentation and > code comments, so claiming something else here feels a bit uninformed. OK, looks one smart idea. It is easy to extend rublk/zoned in this way with io_uring io emulation, :-) Thanks, Ming
