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电梯直达

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发表于 2011-08-25 13:47 |只看该作者 |倒序浏览

16g物理内存，数据库sga 分配了8g,pga 分配了2g
用top监测

Load averages: 0.11, 0.11, 0.13
494 processes: 460 sleeping, 33 running, 1 zombie
Cpu states:
CPU LOAD USER NICE SYS IDLE  BLOCK  SWAIT INTR SSYS
0 0.16  20.1% 0.0% 3.8%  76.1% 0.0% 0.0% 0.0% 0.0%
1 0.08  47.1% 0.0% 5.2%  47.7% 0.0% 0.0% 0.0% 0.0%
2 0.25 1.2% 0.0% 0.2%  98.6% 0.0% 0.0% 0.0% 0.0%
3 0.15 8.9% 0.0% 0.6%  90.5% 0.0% 0.0% 0.0% 0.0%
4 0.06 8.5% 0.0% 0.4%  91.1% 0.0% 0.0% 0.0% 0.0%
5 0.07 0.2% 0.0% 0.8%  99.0% 0.0% 0.0% 0.0% 0.0%
6 0.08 3.2% 0.0% 1.2%  95.6% 0.0% 0.0% 0.0% 0.0%
7 0.08  26.2% 0.0% 1.2%  72.6% 0.0% 0.0% 0.0% 0.0%
--- ----  -----  -----  -----  -----  -----  -----  -----  -----
avg 0.11  14.5% 0.0% 1.8%  83.8% 0.0% 0.0% 0.0% 0.0%

Memory: 8784996K (1773924K) real, 10871216K (2358140K) virtual, 221348K free  Page# 1/
124

用vmstate 监测

qzyc-u#vmstat 3 10
      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 609305 55728 67 8    0 0    0 0    0 7219  49166  1966  17  2 81
2    0    0 609305 55651 23 4    0 0    0 0    0 5059  15380 292 9  1 90
2    0    0 609305 55363 11 1    0 0    0 0    0 5096  21706 322  17  1 83
3    0    0 558588 55363 5 0    0 0    0 0    0 5195  22087 317  15  1 84
3    0    0 558588 55651 2 0    0 0    0 0    0 4940  24324 315  20  1 79
3    0    0 558588 55040  201  154    0 0    0 0    0 5217  35167 385  15  2 82
3    0    0 505539 54692  110 80    0 0    0 0    0 4790  29357 350  22  1 76
3    0    0 505539 56079 56 40    0 0    0 0    0 5219  39273 420  23  1 76
3    0    0 505539 53296  189 20    0 0    0 0    0 5008  28805 438 9  1 90
3    0    0 505539 66004  754 9    0 0    0 0    0 5239  20427 404 5  2 93
并没有发现page pi/po

是否有影响？