[hyc_symas]

What you call optimal performance with InnoDB, I call pathetically slow. http://www.lmdb.tech/bench/memcache/

And if you'd read the reliability references linked in the article, you'd see that MariaDB/InnoDB's reliability is the worst of many tested systems. LMDB's is flawless.

https://lists.openldap.org/hyperkitty/list/openldap-devel@op...

The one fault they found for LMDB, caused by fdatasync not updating the DB filesize, was actually a kernel/filesystem bug (fdatasync is documented to update the filesize) that had already been fixed two years before these guys did their research. Not an LMDB flaw.

[BohuTANG]

Please don't misunderstand me; I've also implemented tokudb_buffer_pool_size for TokuDB because their control over memory is excellent, not falling into the black hole of the page cache. This allows my DBMS to be stable enough. This is also my point in this post, and my discussion ends here.