用nmon工具监控到我的机器内存使用99.9%，应该从哪来入手检查问题呢？
x Physical PageSpace | pages/sec In Out | FileSystemCache x
x% Used 99.9% 7.3% | to Paging Space 0.0 0.0 | (numperm) 48.9% x
x% Free 0.1% 92.7% | to File System 0.0 3.0 | Process 45.9% x
xMB Used 32119.4MB 693.1MB | Page Scans 0.0 | System 5.1% x
xMB Free 24.6MB 8778.9MB | Page Cycles 0.0 | Free 0.1% x
xTotal(MB) 32144.0MB 9472.0MB | Page Steals 0.0 | ------ x
x | Page Faults 0.0 | Total 100.0% x
x------------------------------------------------------------ | numclient 48.9% x
xMin/Maxperm 6155MB( 19%) 24621MB( 77%) <--% of RAM | maxclient 76.6% x
xMin/Maxfree 960 1088 Total Virtual 40.6GB | User 91.5% x
xMin/Maxpgahead 2 8 Accessed Virtual 16.6GB 40.8%| Pinned 6.2%
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