On Wed, Oct 30, 2024 at 05:57:08PM +0100, Christoph Hellwig wrote: > On Wed, Oct 30, 2024 at 10:42:59AM -0600, Keith Busch wrote: > > With FDP (with some minor rocksdb changes): > > > > WAF: 1.67 > > IOPS: 1547 > > READ LAT: 1978us > > UPDATE LAT: 2267us > > Compared to the Numbers Hans presented at Plumbers for the Zoned XFS code, > which should work just fine with FDP IFF we exposed real write streams, > which roughly double read nad wirte IOPS and reduce the WAF to almost > 1 this doesn't look too spectacular to be honest, but it sure it something. Hold up... I absolutely appreciate the work Hans is and has done. But are you talking about this talk? https://lpc.events/event/18/contributions/1822/attachments/1464/3105/Zoned%20XFS%20LPC%20Zoned%20MC%202024%20V1.pdf That is very much apples-to-oranges. The B+ isn't on the same device being evaluated for WAF, where this has all that mixed in. I think the results are pretty good, all things considered. > I just wish we could get the real infraѕtructure instead of some band > aid, which makes it really hard to expose the real thing because now > it's been taken up and directly wired to a UAPI. > one I don't know what make of this. I think we're talking past each other.