Correct me if I’m wrong, but wouldn’t the extra RAM be used by the OS as buffer cache for the disk-backed RocksDB files, like every other disk-backed database?
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Correct me if I’m wrong, but wouldn’t the extra RAM be used by the OS as buffer cache for the disk-backed RocksDB files, like every other disk-backed database?
Yes, RocksDB itself does technically do this (or not if
allow_os_bufferis set to false) - certain things could also be supported through runtime/compile time options. I believe the OP may have been asking about something more like using different storage methods for portions of the DB and not necessarily OS level caching.