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Re:Memcached 1.6 by dijit on Monday March 09, 2020 @07:16AM (#22524473)
http://antirez.com/news/94

TL;DR: Redis is just doing different things, and the slab allocator is pretty efficient in regards to performance but not memory usage.

Re:Memcached 1.6 by dormando on Monday March 09, 2020 @04:34PM (#22529462)
Fwiw this post comparison is pretty old. The memory usage should be the same or better these days (automatic slab rebalancing, LRU expired item crawler, chunked items, etc).