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Full Discussion: Performance issue
Operating Systems AIX Performance issue Post 302622321 by vjm on Thursday 12th of April 2012 03:05:14 AM
Old 04-12-2012
Hi,

There are 2 engines in sybase and 3 vcpu in lpar. the output of vmstat and iostat is as below.

Code:
vmstat -Iwt 1 20

System configuration: lcpu=3 mem=16384MB ent=3.00

   kthr            memory                         page                       faults                 cpu             time
----------- --------------------- ------------------------------------ ------------------ ----------------------- --------
  r   b   p        avm        fre    fi    fo    pi    po    fr     sr    in     sy    cs us sy id wa    pc    ec hr mi se
  1   1   0     775841     836806     0   218     0     0     0      0   224  18877  1474  1  2 50 47  0.09   3.2 12:21:04
  1   1   0     776003     836644     0   235     0     0     0      0   232  19767  1606  1  2 51 46  0.10   3.3 12:21:05
  1   1   0     776120     836527     0   173     0     0     0      0   177  14744  1187  1  2 51 47  0.07   2.5 12:21:06
  2   0   0     776249     836398     0   166     0     0     0      0   176  14625  1188  1  2 50 47  0.08   2.7 12:21:07
  1   1   0     776400     836247     0   218     0     0     0      0   214  18040  1479  1  2 51 46  0.09   3.1 12:21:08
  3   0   0     776560     836087     0   235     0     0     0      0   233  19726  1516  1  2 51 46  0.10   3.3 12:21:09
  1   1   0     776713     835934     0   222     0     0     0      0   218  18318  1468  1  2 50 47  0.09   3.1 12:21:10
  1   1   0     776834     835813     0    41     0     0     0      0    43   3779   303  1  2 90  7  0.08   2.8 12:21:11
  1   1   0     776995     835652     0   191     0     0     0      0   187  12386  1384  1  1 51 46  0.08   2.7 12:21:12
  1   1   0     777178     835469     0   221     0     0     0      0   218  15519  1579  1  2 52 45  0.09   3.1 12:21:13
  1   1   0     777311     835336     0   179     0     0     0      0   176  13182  1212  1  1 50 47  0.08   2.5 12:21:14
  1   1   0     777450     835197     0   182     0     0     0      0   184  13990  1278  1  2 50 47  0.08   2.7 12:21:15
  1   1   0     777624     835023     0   227     0     0     0      0   225  17389  1565  1  2 50 47  0.10   3.2 12:21:16
  1   1   0     777775     834872     0    67     0     0     0      0    68   5471   467  1  2 85 12  0.10   3.2 12:21:17
  1   1   0     777908     834739     0   180     0     0     0      0   179  12791  1239  1  1 51 47  0.08   2.5 12:21:18
  1   1   0     778081     834566     0   212     0     0     0      0   215  14603  1528  1  2 51 46  0.09   3.0 12:21:19
  2   0   0     778236     834411     0   200     0     0     0      0   198  14232  1373  1  2 52 46  0.08   2.8 12:21:20
  1   1   0     778367     834280     0    85     0     0     0      0    91   6775   616  1  2 84 14  0.09   2.9 12:21:21
  2   0   0     778514     834133     0   190     0     0     0      0   200  13161  1382  1  2 50 47  0.08   2.7 12:21:22
  1   1   0     778685     833962     0   222     0     0     0      0   218  15568  1481  1  2 50 46  0.10   3.2 12:21:23
=================================================================================================================================

Code:
iostat -Dl -T

System configuration: lcpu=3 drives=5 paths=50 vdisks=2

Disks:                     xfers                                read                                write                                  queue                    time
-------------- -------------------------------- ------------------------------------ ------------------------------------ -------------------------------------- ---------
                 %tm    bps   tps  bread  bwrtn   rps    avg    min    max time fail   wps    avg    min    max time fail    avg    min    max   avg   avg  serv
                 act                                    serv   serv   serv outs              serv   serv   serv outs        time   time   time  wqsz  sqsz qfull
hdisk0           0.0 100.2K  11.9 435.4   99.7K   0.0   4.2    0.4  126.6     0    0  11.9   1.1    0.6   99.8     0    0   1.0    0.0  965.6    0.0   0.0   0.3  12:28:31
hdisk1           0.0  80.6K  10.9 490.8   80.1K   0.1   1.5    0.4   82.8     0    0  10.9   1.1    0.5   99.9     0    0   0.2    0.0  107.5    0.0   0.0   0.1  12:28:31
hdisk5           0.0   4.1K   0.8 437.5    3.6K   0.0   2.4    0.4   59.1     0    0   0.8   1.1    0.6   84.4     0    0   0.0    0.0    2.8    0.0   0.0   0.0  12:28:31
hdisk2           0.0 141.7K   1.4   1.1K 140.6K   0.0   3.0    0.1   19.7     0    0   1.4   5.7    0.3  276.1     0    0 189.4    0.0    2.1S   0.0   0.0   0.6  12:28:31
hdisk3           0.0 106.8K   1.1 829.2  106.0K   0.0   3.0    0.1   22.4     0    0   1.1   6.0    0.2   74.7     0    0 154.7    0.0    1.8S   0.0   0.0   0.4  12:28:31

Regards
vjm

---------- Post updated at 12:35 PM ---------- Previous update was at 12:31 PM ----------

Hi,

And the p7 is using xiv and old p6 is using ds8k with svc. The other difference is p7 is having aix 6100-06-06-1140 and p6 is having aix 5300-07-01-0748

Regards,

VJM
 

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