xredis is s c++11   compatible with redis or hiredis_client multithreading , in-memory data structure store, used as a database, cache It supports data structures such as set get hset hget hkeys keys hgetall dbsize flushdb sync slaveof save quit info auth config  zadd zrange sadd scard zrevragne publish unsubscribe subscribe detailed test method reference redis benchmark https://redis.io/topics/benchmarks https://stackoverflow.com/questions/2873249/is-memcached-a-dinosaur-in-comparison-to-redis