memcache-top 是一个用 Perl 编写的命令行小工具，用来实时的获取 memcached 缓存服务器的详细信息，例如缓存命中率等。
下面是一个输出结果实例：
memcache-top v0.5 (default port: 11211, color: on, refresh: 3 seconds)
INSTANCE USAGE HIT % CONN TIME EVICT/s READ/s WRITE/s 10.50.11.5:11211 88.8% 69.6% 1123 1.9ms 0.3 13.1K 36.2K 10.50.11.5:11212 88.7% 69.6% 1175 0.6ms 0.3 12.4K 28.1K 10.50.11.5:11213 88.8% 69.4% 1148 0.7ms 0.0 16.6K 32.1K 10.50.12.5:11211 89.3% 81.5% 1460 0.7ms 0.3 17.7K 204.0K 10.50.12.5:11212 89.4% 69.3% 1174 0.6ms 1.0 28.9K 63.5K 10.50.12.5:11213 89.3% 69.4% 1158 0.7ms 0.7 166.3K 194.4K 10.50.15.5:11211 89.3% 71.8% 1472 0.8ms 0.0 37.3K 59.2K 10.50.15.5:11212 89.4% 69.3% 1143 0.7ms 0.7 44.9K 35.4K 10.50.15.5:11213 89.3% 84.5% 1371 0.7ms 0.7 49.0K 187.2K 10.50.9.90:11211 30.2% 76.3% 259 0.7ms 0.0 243 999 10.50.9.90:11212 19.2% 60.3% 261 0.7ms 0.0 40 801 10.50.9.90:11213 17.5% 16.9% 235 0.6ms 0.0 70 600
AVERAGE: 72.4% 67.3% 998 0.8ms 0.3 32.2K 70.2K
TOTAL: 23.4GB 11.7K 9.2ms 4.0 386.4K 842.3K
