4 ms·

See slide 43 here https://www.snia.org/sites/default/files/SDC/2017/presentations/Object_ObjectDriveStorage/Ki_Yang_Seok_Key_Value_SSD_Explained_Concept_Device_

• the_duke 7y ago
  Very interesting presentation. Slide 43 is for write performance though. RocksDB does a lot of clever things with writes, like delayed and batched flushing with a WAL for recovery. Would be interesting how that benchmark was written. Other slides with read benchmarks show very significant performance improvements. But comparing directly to a software DB seems inappropriate to me anyway. We can't expect (and definitely wouldn't want) a hard disk to offer something as complex as RocksDB/LLDB/etc. I would rather imagine that the software DBs start taking advantage of key/value disks internally.