[轉載]linux 清除系統cached

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FROM: http://cqfish.blog.51cto.com/622299/197230

linux 清除系統cachedtop查看系統記憶體使用量情況 Mem:    16432180k total, 13737848k used,    2694332k free,     945396k buffers freem -m[[email protected] ~]# free -m 
           total      used        free     shared     buffers         cached 
Mem:     16047   13415      2631         0         923            10735 
-/+ buffers/cache: 1756     14290 
Swap: 39997          0         39997 系統緩衝了10735K 使用以下命令清除系統cachedsync;echo 3 > /proc/sys/vm/drop_caches在使用freem -m查看[[email protected] ~]# free -m 
       total         used        free    shared        buffers         cached 
Mem: 16047      1195       14851      0              2             15 
-/+ buffers/cache: 1177   14869 
Swap:  39997       0         39997

[轉載]linux 清除系統cached