Memcached: good when 1) static/small data, 2) better horizontal scaling
Redis: good when:
1) more data structure support
2) faster for more clients
3) larger object size limit (512MB v.s. 1MB of memcached)
4) stored data can be manipulated, not opaque
5) more control over LRU policies (6)
6) tunable persistence
7) offers replication
- On Redis, Memcached, Speed, Benchmarks and The Toilet
Redis: ~ 80-100k GET/SET per sec, better for more clients.
Memcached: ~ 60-80k GET/SET per sec
- An update on the Memcached/Redis benchmark
Memcached: 1 instance running multiple threads, overhead causes less speed per thread.
Redis: single thread. Can run multiple instances together.
