Yesterday, I found this cool script 'memcache-top' which nicely prints out stats of memcached live. It looks like,

memcache-top v0.6       (default port: 11211, color: on, refresh: 3 seconds)

INSTANCE                USAGE   HIT %   CONN    TIME    EVICT/s READ/s  WRITE/s
127.0.0.1:11211         88.8%   94.8%   20      0.8ms   9.0     311.3K  162.8K

AVERAGE:                88.8%   94.8%   20      0.8ms   9.0     311.3K  162.8K

TOTAL:          1.8GB/  2.0GB           20      0.8ms   9.0     311.3K  162.8K
(ctrl-c to quit.)

it even makes certain text red when you should pay attention to something!

Q. Broadly, what are some useful tools/techniques you've used to check that memcached is set up well?

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