Howard Chu @ SymasAlso, #LMDB outperforms all other DBs especially with memory pressure. Particularly because you must finely tune the caches of other DBs, and your tuning all goes out the window if system usage spikes unexpectedly. In those cases your tuning can become a pessimization, while LMDB just keeps running smoothly. See the tests here http://www.lmdb.tech/bench/ondisk/
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