AIX FileSystemCache内存占用过大“每两个月重启一次系统”

[u014171882]

AIX FileSystemCache内存占用过大“每两个月重启一次系统”
lqtopas_nmonqq1=Top-BasicsqqqqqqqHost=syjtgsqqqqqqqqqRefresh=2 secsqqq14:06.15qqqqqqqqqqqqqqqqqqqqqqqqqqqk
x Memory qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqx
x Physical PageSpace | pages/sec In Out | FileSystemCache x
x% Used 93.0% 4.1% | to Paging Space 0.5 0.0 | (numperm) 10.9% x
x% Free 7.0% 95.9% | to File System 12.5 248.0 | Process 53.2% x
xMB Used 58345.0MB 2655.7MB | Page Scans 0.0 | System 28.9% x
xMB Free 4375.0MB 61344.3MB | Page Cycles 0.0 | Free 7.0% x
xTotal(MB) 62719.9MB 64000.0MB | Page Steals 0.0 | ------ x
x | Page Faults 2352.0 | Total 100.0% x
x------------------------------------------------------------ | numclient 10.9% x
xMin/Maxperm 1826MB( 3%) 54771MB( 87%) <--% of RAM | maxclient 87.3% x
xMin/Maxfree 960 1088 Total Virtual 123.7GB | User 61.2% x
xMin/Maxpgahead 2 8 Accessed Virtual 51.1GB 41.3%| Pinned 30.6%


IBM P570系统 # oslevel -s
6100-03-01-0921
数据库# oracle

Oracle Database 10g Enterprise EditionRelease 10.2.0.5.0 - 64bit

带有10.2.0.5.5psu

如上图，system内存占用率从系统重启后的5%，每天都在增长约0.7%。

问题描述：
上述图片是通过nmon监控到的。
Filesystemcache的system占用率从系统重启后的5%左右，不到两个月就涨到接近40%。Process在业务期间差不多一直保持在40-50%。然后剩余Free内存不到1%了，PagingSpace也会占用到30%，这时系统就会宕掉了。关闭oracle数据库，system占用百分比也不会缩减，现在最无奈的办法就是每两个月重启一次系统~~
求解！谢谢！

[Drug_M]

Oracle 这个版本不稳定吧 还是有bug ？？ 看下Oracle alert日志 在业务高峰期抓个awr看看