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发表于 2007-01-15 17:59 |只看该作者 |倒序浏览

为什么物理内存和VMSTAT、TOP显示的差这么多？内存哪里去了？

TOP和VMSTAT里显示的总内存为什么只有这么一点？

#SXyc1./>top
System: SXyc1                                        Mon Jan 15 17:35:44 2007
Load averages: 0.20, 0.17, 0.17
406 processes: 372 sleeping, 33 running, 1 zombie
Cpu states:
CPU LOAD USER NICE SYS IDLE  BLOCK  SWAIT INTR SSYS
0 0.05 2.0% 0.0% 1.0%  97.0% 0.0% 0.0% 0.0% 0.0%
1 0.13 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
2 0.10 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
3 0.12 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
4 0.16 0.0% 0.0% 1.0%  99.0% 0.0% 0.0% 0.0% 0.0%
5 0.08 0.0% 0.0% 3.0%  97.0% 0.0% 0.0% 0.0% 0.0%
6 0.07 1.0% 0.0% 5.9%  93.1% 0.0% 0.0% 0.0% 0.0%
7 0.05 3.0% 0.0% 4.0%  93.1% 0.0% 0.0% 0.0% 0.0%
8 0.15 2.0% 0.0% 3.0%  95.0% 0.0% 0.0% 0.0% 0.0%
9 0.02 0.0% 0.0% 0.0% 100.0% 0.0% 0.0% 0.0% 0.0%
10 1.13 1.0% 0.0%  16.8%  82.2% 0.0% 0.0% 0.0% 0.0%
11 0.35  54.5% 0.0%  43.6% 2.0% 0.0% 0.0% 0.0% 0.0%
--- ----  -----  -----  -----  -----  -----  -----  -----  -----
avg 0.20 5.0% 0.0% 6.0%  89.0% 0.0% 0.0% 0.0% 0.0%

Memory: 3828704K (2126336K) real, 4898316K (2648684K) virtual, 3320696K free  Pa
ge# 1/203

CPU TTY  PID USERNAME PRI NI SIZE RES STATE TIME %WCPU  %CPU COMMAND
11 ? 22942 root    241 20  6312K  1684K run 218:58 100.02 99.84 cmenu

#SXyc1./>dmesg
Memory Information:
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 16741376 Kbytes, lockable: 12574932 Kbytes, available: 14601944 Kb
ytes

#SXyc1./>vmstat 1 4
      procs          memory                page
faults    cpu
r    b    w    avm free re at pi po fr de sr    in
sy cs  us sy id
2    0    0 583383  829808 37 7    2 0    0 0    0 6959
19107  1540 4  1 95
2    0    0 583383  829747 3 1    0 0    0 0    0 6671
232666 943 6  5 89
2    0    0 583383  829747 3 0    0 0    0 0    0 6672
232603 942 5  5 90
2    0    0 583383  829747 2 0    0 0    0 0    0 6686
232622 952 6  5 89