一个非常奇怪的缓存问题，以下是我的memcache数据stats ，不知为何命中率极低:
STAT pid 14114
STAT uptime 281966
STAT time 1417615936
STAT version 1.4.21
STAT libevent 2.0.21-stable
STAT pointer_size 64
STAT rusage_user 1771.633670
STAT rusage_system 5741.131215
STAT curr_connections 18
STAT total_connections 207
STAT connection_structures 24
STAT reserved_fds 20
STAT cmd_get 126983631
STAT cmd_set 65920448
STAT cmd_flush 0
STAT cmd_touch 0
STAT get_hits 15784745
STAT get_misses 111198886
STAT delete_misses 0
STAT delete_hits 4581091
STAT incr_misses 0
STAT incr_hits 0
STAT decr_misses 0
STAT decr_hits 0
STAT cas_misses 0
STAT cas_hits 0
STAT cas_badval 0
STAT touch_hits 0
STAT touch_misses 0
STAT auth_cmds 0
STAT auth_errors 0
STAT bytes_read 7124760581
STAT bytes_written 2185830233
STAT limit_maxbytes 8589934592
STAT accepting_conns 1
STAT listen_disabled_num 0
STAT threads 4
STAT conn_yields 0
STAT hash_power_level 25
STAT hash_bytes 268435456
STAT hash_is_expanding 0
STAT malloc_fails 0
STAT bytes 4861621925
STAT curr_items 40685748
STAT total_items 65920448
STAT expired_unfetched 0
STAT evicted_unfetched 0
STAT evictions 0
STAT reclaimed 0
STAT crawler_reclaimed 0
STAT lrutail_reflocked 0
非常感谢！
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http://www.duyumi.net/41.html
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看不明白啊 上网上搜搜