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Full Discussion: Performance issue / tuning advice
Operating Systems AIX Performance issue / tuning advice Post 302480489 by firefox111 on Wednesday 15th of December 2010 04:48:32 AM
Old 12-15-2010
Performance issue / tuning advice
Please take a look at this system and give your analysis / advice. Can it be tuned to get a better performance?
We are not getting more hardware ressources at the moment.
We have to live with what we have. Application running on the system is SAS. OS is AIX 6.1
Let me know if you need output of more commands...

Code:
# vmstat -w 1 20

System configuration: lcpu=6 mem=20480MB ent=3.00

 kthr          memory                         page                       faults                 cpu
------- --------------------- ------------------------------------ ------------------ -----------------------
  r   b        avm        fre    re    pi    po    fr     sr    cy    in     sy    cs us sy id wa    pc    ec
 22  19    3579818      86874     0     0     0 67844 123310     0 10913  32142 85599 49 49  0  2  2.94  97.9
 26  18    3580751      87123     0     0     0 67666  93373     0  8490  26159 132536 48 45  0  7  2.80  93.5
 28  15    3582827      87089     0     0     0 76540 144681     0 11421  34167 101260 48 50  0  2  2.96  98.5
 26  19    3584824      87106     0     0     0 75337 127281     0 10684  33874 119796 49 50  0  1  2.98  99.2
 50   8    3585697      87109     0     0     0 92728 140676     0  9537  33579 85175 50 49  0  2  2.95  98.4
 35   7    3586172      88186     0     0     0 77249 136529     0 12591  31836 89203 46 53  0  1  2.97  99.0
 24  20    3588964      87137     0     0     0 73329 136712     0 11062  28124 76413 50 48  0  2  2.98  99.2
 42  13    3589926      87094     0     0     0 78307 123497     0  9240  29060 106892 52 48  0  1  2.99  99.7
 35  13    3585537      87208     0     0     0 69645 141586     0 10055  24548 87894 42 52  0  6  2.83  94.5
 35   9    3596513      87645     0     0     0 28480  44099     0  6482  41033 45360 51 49  0  0  3.00  99.9
 56   5    3567954      87653     0     0     0 56711 124429     0  7532  40724 13891 48 52  0  0  3.00 100.0
 51   9    3566138      86282     0     0     0 83624 126816     0  7582  48011 14971 46 54  0  0  3.00 100.1
 29  12    3527596      87942     0     0     0 59565  86520     0 10428  35858 22459 45 55  0  0  3.00  99.9
 43   9    3519915      89237     0     0     0 74838 130716     0  7460  30086 23766 51 49  0  0  3.00 100.2
 47   4    3519288      86889     0     0     0 65930  78800     1  8244  36199 18878 51 49  0  0  3.00 100.1
 38   5    3498940      87741     0     0     0 59209 136282     0 10774  34718 66311 47 50  0  2  2.93  97.7
 55   5    3509379      87351     0     0     0 89311 141676     0  8963  37806 42990 52 48  0  0  3.00 100.1
 38   8    3518601      87748     0     0     0 89609 119495     0  9635  38512 106600 52 47  0  1  2.98  99.4
 39   6    3525575      88857     0     0     0 84893 151599     0  8268  29233 118665 52 47  0  1  2.98  99.2
 36   8    3533680      87521     0     0     0 89532 145853     0  9447  35574 79352 51 48  0  0  2.99  99.8

Code:
#vmstat -v
              5242880 memory pages
              5060608 lruable pages
                89262 free pages
                    1 memory pools
              1534573 pinned pages
                 80.0 maxpin percentage
                  3.0 minperm percentage
                 90.0 maxperm percentage
                 28.6 numperm percentage
              1448701 file pages
                  0.0 compressed percentage
                    0 compressed pages
                 28.6 numclient percentage
                 90.0 maxclient percentage
              1448701 client pages
                    0 remote pageouts scheduled
                  260 pending disk I/Os blocked with no pbuf
               731746 paging space I/Os blocked with no psbuf
                 2484 filesystem I/Os blocked with no fsbuf
                    0 client filesystem I/Os blocked with no fsbuf
            596244370 external pager filesystem I/Os blocked with no fsbuf

Last edited by pludi; 12-15-2010 at 06:14 AM.. Reason: quote -> code
 

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