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用三个方式看到的内存大小有区别,请问一下top看到的内存为什么只有4.8G,其他部分做什么用了? 还有一台机器,配置一样,TOP中的REAL内存只有4.6G,和第一台机器不一样.
#dmesg
Memory Information:
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 8346864 Kbytes, lockable: 6151852 Kbytes, available: 7125228 Kbytes
#swapinfo
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 4194304 0 4194304 0% 0 - 1 /dev/vg00/lvol2
dev 8388608 0 8388608 0% 0 - 1 /dev/vg00/lvswap
reserve - 4991676 -4991676
memory 8346864 1469264 6877600 18%
#top
Memory: 4855436K (3908016K) real, 5586840K (4556096K) virtual, 1722232K free P
ge# 1/19 |
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