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最近发现服务器上的swap空间被占用了很多(几乎被占完了),可是内存空间似乎并没有使用完啊,这种现象正常吗?
[root@xx root]# free
total used free shared buffers cached
Mem: 2064344 2041544 22800 0 376492 1129336
-/+ buffers/cache: 535716 1528628
Swap: 2040212 1917848 122364
[root@xx root]# vmstat
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 0 0 1917848 20220 376492 1129364 0 0 0 2 0 0 0 0 1
1499624k actv, 4k in_d, 42100k in_c
Swap: 2040212k av, 1917912k used, 122300k free 1136964k cached
TOP指令的结果
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
651 nobody 15 0 1151M 135M 384 S 0.1 6.7 629:35 2 queue
656 nobody 15 0 945M 107M 416 S 0.0 5.3 622:45 2 queue
643 root 25 0 41528 39M 656 S 4.3 1.9 6316m 0 slapd
707 root 15 0 38156 27M 1956 S 0.0 1.3 12675m 3 mysqld
618 nobody 15 0 2584 2492 1116 S 0.0 0.1 0:00 0 pop3d |
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