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Server performance bottleneck

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Operating Systems Solaris Server performance bottleneck
# 1  
Old 10-27-2011
Server performance bottleneck
hi all,

My server box is slow running. I have provide some statistics below:

Where is the bottleneck on the server?
I guess the bottleneck is disk I/O?


Code:
bash-3.00# prstat -Z

   PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
 29206 mobi1     334M  264M sleep   14    2   0:00:14 2.3% discounting/1
 10225 oracle   6284M 6263M cpu10   10    0   0:14:13 1.6% oracle/1
 17658 mobi1     394M   95M cpu8    16    2   0:09:19 1.5% discounting/1

ZONEID    NPROC  SWAP   RSS MEMORY      TIME  CPU ZONE
     0           606     19G   13G    80%    19:10:36  13% global


I'm provide some SAR reports:

Code:
bash-3.00# sar -f /var/adm/sa/sa27 -s 09:00 -e 15:00 -u

09:00:01    %usr    %sys    %wio   %idle
09:20:01       6       2       0      92
09:40:01       5       6       0      89
10:00:00       9       8       0      83
10:20:00       7       3       0      90
10:40:01      10       4       0      86
11:00:01      17       9       0      75
11:20:01       8       7       0      85
11:40:00      12       6       0      82
12:00:00      10       5       0      85
12:20:01      11       7       0      82
12:40:01       9       3       0      87
13:00:00      16       7       0      76
13:20:00       9       5       0      86
13:40:00      10       5       0      85
14:00:01      11       5       0      84
14:20:01       9       5       0      86
14:40:01      12       3       0      85

Average       10       5       0      85


Code:

bash-3.00# sar -f /var/adm/sa/sa27 -s 09:00 -e 15:00 -b

09:00:01 bread/s lread/s %rcache bwrit/s lwrit/s %wcache pread/s pwrit/s
09:20:01       1    1361     100       2      64      97       0       0
09:40:01       6    7576     100       5    5188     100       0       0
10:00:00       6    8206     100       6    5910     100       0       0
10:20:00       1    1706     100       2     347      99       0       0
10:40:01       4    7494     100       7    3361     100       0       0
11:00:01      10   29329     100      21   16495     100       0       0
11:20:01       5   12976     100      10    6976     100       0       0
11:40:00       4   12718     100      11    6877     100       0       0
12:00:00       1     995     100       3      44      93       0       0
12:20:01       1    1087     100       2      21      89       0       0
12:40:01       0    1587     100       2      35      93       0       0
13:00:00       0    1723     100       3      41      94       0       0
13:20:00       1    1515     100       3      27      90       0       0
13:40:00       0    1807     100       3      37      92       0       0
14:00:01       0    1922     100       2      32      93       0       0
14:20:01       1    2814     100       4     235      98       0       0
14:40:01       1    4178     100       5    1616     100       0       0

Average        3    5823     100       5    2782     100       0       0

Waiting for your reply.Smilie
# 2  
Old 10-28-2011
Post output of
Code:
vmstat 2 5
vmstat -S 2 5
iostat -xn 2 5

# 3  
Old 10-31-2011
Server performance bottleneck
hi bartus11

This is ouptup:

Code:
-bash-3.00$ vmstat 2 5
 kthr      memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr s0 s1 s2 sd   in   sy   cs us sy id
 0 2 0 23051384 1313496 3119 1270 31840 332 532 88808 1239 5 24 -0 -0 3498 48598 4350 8 3 90
 0 6 0 20364128 603328 6518 1510 57076 4 4 71936 0 14 169 0 0 8009 85458 7456 7 5 88
 0 9 0 20360856 593096 3992 780 30972 20 16 58272 0 2 146 0 0 7447 59545 7240 5 7 88
 0 3 0 20388440 624968 4501 1275 40655 8 4 47208 0 0 3 0 0 3284 52829 3636 9 4 87
 0 5 0 20444440 634280 2627 437 25616 12 12 38240 0 5 52 0 0 3739 31079 3723 3 2 95

-bash-3.00$ vmstat -S 2 5
 kthr      memory            page            disk          faults      cpu
 r b w   swap  free  si  so pi po fr de sr s0 s1 s2 sd   in   sy   cs us sy id
 0 2 0 23051328 1313480 0 0 31840 332 532 25096 1239 5 24 -0 -0 3498 48598 4350 8 3 90
 0 2 0 20461096 639472 0  0 51104 4 4 20336 0 5 15 0 0 3885 70370 3486 3  5 92
 0 3 0 20461768 644872 0  0 41851 0 0 16480 0 2 6 0  0 3205 41070 3187 2  4 94
 0 4 0 20456768 641880 0  0 32263 4 4 13352 0 4 22 0 0 3863 49445 3489 5  5 90
 0 6 0 20441656 630144 0  0 51351 4 4 10824 0 9 30 0 0 3636 63399 3709 12 4 83


-bash-3.00$ iostat -xn 2 5
                    extended device statistics
    r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device
    0.5    3.5  182.3   60.8  0.0  0.0    0.0    8.0   0   2 c0t1d0
    0.0    3.0    0.0   21.5  0.0  0.0    0.0    9.9   0   2 c0t0d0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c0t3d0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c1t202300A0B8492A7Ad2
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c1t202300A0B8492A7Ad1
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c1t202300A0B8492A7Ad0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c1t203200A0B8492A7Ad2
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c1t203200A0B8492A7Ad1
  555.1  132.7 37364.6 1058.0  0.0  8.5    0.0   12.4   0 100 c1t203200A0B8492A7Ad0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t202300A0B8492A7Ad2
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t202300A0B8492A7Ad1
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t202300A0B8492A7Ad0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t203200A0B8492A7Ad2
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t203200A0B8492A7Ad1
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 c4t203200A0B8492A7Ad0
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 cerprodm:vold(pid534)
    0.0    0.0    0.0    0.0  0.0  0.0    0.0    0.0   0   0 10.10.10.11:/pool1/data/prillion

# 4  
Old 10-31-2011
The bottleneck was likely RAM.
# 5  
Old 10-31-2011
Hi jlliagre

What information tell you that bottleneck was RAM.
# 6  
Old 10-31-2011
Can you also post output of:
Code:
sar -f /var/adm/sa/sa27 -s 09:00 -e 15:00 -g

# 7  
Old 10-31-2011
This is the output above command you mentioned

Code:
09:00:01  pgout/s ppgout/s pgfree/s pgscan/s %ufs_ipf
09:20:01    88.04   369.89   517.64  2210.69     0.00
09:40:01     0.57     1.75     1.72     0.00     0.00
10:00:00    18.79   131.88   174.26   953.12     0.00
10:20:00     3.19    29.82    36.08    70.21     0.00
10:40:01    17.18   542.91   641.47  1701.98     0.00
11:00:01    29.29   977.21  1321.35  2507.45     0.00
11:20:01    13.38   365.26   458.38   277.97     0.00
11:40:00     8.08   268.26   400.09  1447.84     0.00
12:00:00     1.19     4.37     9.74    26.00     0.00
12:20:01     7.61    38.55   105.03  2664.11     0.00
12:40:01     5.59    25.51    57.35  1520.08     0.00
13:00:00     5.68    26.44    52.50  1785.57     0.00
13:20:00    22.45    94.24   197.90  4331.76     0.00
13:40:00    11.30    38.99   102.93  1247.37     0.00
14:00:01    26.47    94.16   240.80  3934.98     0.00
14:20:01    46.45   171.12   361.42  7579.79     0.00
14:40:01     5.85    30.13    43.82  1754.30     0.00

Last edited by DukeNuke2; 10-31-2011 at 06:06 AM..
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