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一直搞不太明白,请教各位大大帮忙解释一下。
root:/etc>dmesg
Memory Information:
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 8386560 Kbytes, lockable: 6461596 Kbytes, available: 7422528 Kbytes
这个应该是实际的物理内存大小吧
root:/etc>swapinfo
Kb Kb Kb PCT START/ Kb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 12582912 0 12582912 0% 0 - 1 /dev/vg00/lvol2 //这个应该是交换空间大小了
reserve - 1309540 -1309540
memory 6473984 4966712 1507272 77% //这个memory是啥?
top输出
System: rp3440 Thu Jul 23 16:29:33 2009
Load averages: 0.01, 0.01, 0.02
355 processes: 339 sleeping, 13 running, 3 zombies
Cpu states:
CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
0 0.00 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
1 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
--- ---- ----- ----- ----- ----- ----- ----- ----- -----
avg 0.01 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
Memory: 830568K (611648K) real, 1538092K (1216344K) virtual, 1896820K free Page# 1/12
实际物理内存,虚拟内存(交换空间)大小。但和demsg的输出有些区别啊,计算方法不一样?
root:/etc>vmstat 1 3
procs memory page faults cpu
r b w avm free re at pi po fr de sr in sy cs us sy id
1 0 0 300191 474354 9 3 0 0 0 0 0 489 14445 166 2 1 97
1 0 0 300191 474354 2 1 0 0 0 0 0 426 268 120 0 0 100
1 0 0 300191 474303 2 0 0 0 0 0 0 422 241 116 0 0 100
这个地方的memory如何定义的? |
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