On 12/12, Christoph Hellwig wrote: > On Tue, Dec 12, 2023 at 10:19:31AM -0800, Bart Van Assche wrote: > > "Fundamentally broken model" is your personal opinion. I don't know anyone > > else than you who considers zoned writes as a broken model. > > No Bart, it is not. Talk to Damien, talk to Martin, to Jens. Or just > look at all the patches you're sending to the list that play a never > ending hac-a-mole trying to bandaid over reordering that should be > perfectly fine. You're playing a long term losing game by trying to > prevent reordering that you can't win. As one of users of zoned devices, I disagree this is a broken model, but even better than the zone append model. When considering the filesystem performance, it is essential to place the data per file to get better bandwidth. And for NAND-based storage, filesystem is the right place to deal with the more efficient garbage collecion based on the known data locations. That's why all the flash storage vendors adopted it in the JEDEC. Agreed that zone append is nice, but IMO, it's not practical for production.
