lms程式耗用大量記憶體

以前系統的可用記憶體一直在2.5g左右,最近不知怎麼突然可用記憶體只剩下100M左右,用top檢視,發現lms程式耗用了比較多的記憶體.最近沒做什麼調整

[root@rac1 root]# top

09:22:45 up 41 days, 17:28, 3 users, load average: 1.46, 1.50, 1.39
125 processes: 121 sleeping, 2 running, 2 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 108.8% 0.0% 81.6% 0.0% 4.8% 161.6% 1240.0%
Mem: 12035444k av, 11988716k used, 46728k free, 0k shrd, 227756k buff
7725168k actv, 2199044k in_d, 310176k in_c
Swap: 4192956k av, 2684k used, 4190272k free 10259992k cached

PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
17015 oracle 15 0 3806M 3.7G 3798M S 0.4 32.3 14:57 0 ora_lms2_rac1
16985 oracle 15 0 3785M 3.7G 3777M S 0.4 32.2 14:45 10 ora_lms0_rac1
17035 oracle 15 0 3771M 3.7G 3763M S 0.4 32.0 13:58 9 ora_lms3_rac1
16995 oracle 15 0 3757M 3.7G 3749M S 0.2 31.9 14:20 4 ora_lms1_rac1
17066 oracle 15 0 2243M 2.2G 2240M S 0.0 19.0 2:17 2 ora_dbw0_rac1
17082 oracle 15 0 2200M 2.1G 2197M S 0.0 18.7 2:09 3 ora_dbw1_rac1
17150 oracle 16 0 616M 616M 613M S 0.0 5.2 0:30 4 ora_smon_rac1
17128 oracle 15 0 384M 383M 378M S 0.0 3.2 1:02 14 ora_ckpt_rac1
16829 oracle 15 0 155M 155M 154M S 0.0 1.3 1:42 13 ora_pmon_rac1