On 01.11.2024 08:16, Hans Holmberg wrote:
Locking in or not, to constructively move things forward (if we are now stuck on how to wire up fs support) I believe it would be worthwhile to prototype active fdp data placement in xfs and evaluate it. Happy to help out with that.
I appreciate you willingness to move things forward. I really mean it. I have talked several times in this thread about collaborating in the API that you have in mind. I would _very_ much like to have a common abstraction for ZNS, ZUFS, FDP, and whatever people build on other protocols. But without tangible patches showing this, we simply cannot block this anymore.
Fdp and zns are different beasts, so I don't expect the results in the presentation to be directly translatable but we can see what we can do. Is RocksDB the only file system user at the moment? Is the benchmark setup/config something that could be shared?
It is a YCSB workload. You have the scripts here: https://github.com/brianfrankcooper/YCSB/blob/master/workloads/workloada If you have other standard workload you want us to run, let me know and we will post the results in the list too. We will post the changes to the L3 placement in RocksDB. I think we can make them available somewhere for you to test before that. Let me come back to you on this.
