Impact of server load on database

Question

Hi,
We have a database 10.2.0.1 on linux 4. Load average ( top command) is normally 8 on the server. From last two days it is fluctuating from 12 to max 28. No recent changes have been made on daabase or application or on server itself. I have awr reports every hour. I compared the sqls execution plans and could not find any difference. Overall database is busy in last two days which was exepected. In past even if we have more transactions, load on server is always less than 12. Another thing I notice in AWR reports comparison (May 20 and May 23 ) is for three sql statements elapsed time changes from 0.15 to 0.25 or gets per execution is very less as compare to execution on May 20.
I need some help in investigation. Also IO on server is much higher from last two days.
Thanks.

Answer 1

RPG wrote:
Hi,
We have a database 10.2.0.1 on linux 4. Load average ( top command) is normally 8 on the server. From last two days it is fluctuating from 12 to max 28. No recent changes have been made on daabase or application or on server itself. I have awr reports every hour. I compared the sqls execution plans and could not find any difference. Overall database is busy in last two days which was exepected. In past even if we have more transactions, load on server is always less than 12. Another thing I notice in AWR reports comparison (May 20 and May 23 ) is for three sql statements elapsed time changes from 0.15 to 0.25 or gets per execution is very less as compare to execution on May 20.
I need some help in investigation. Also IO on server is much higher from last two days.
Thanks.how many cores/CPUs does this system have?
post FORMATTED results from doing same as below; which will take 60 seconds to complete
vmstat 6 10
[oracle@localhost ~]$ vmstat 6 10
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
0  0  97204 133580  57884 386108    0    1     5    28   39   70  1  2 97  0  0
0  0  97204 133316  57904 386116    0    0     3    23 1056 1177  0  1 98  0  0
0  0  97204 133332  57912 386116    0    0     0     8  997 1096  1  2 98  0  0
0  0  97204 129612  57928 386112    0    0     1    71 1003 1086  2  3 95  0  0
2  0  97204 128992  57936 386120    0    0     0    25 1004 1029  1  1 98  0  0
0  0  97204 128992  57952 386120    0    0     0    15 1001 1017  1  1 99  0  0
0  0  97204 128992  57960 386120    0    0     0    13 1001 1043  1  1 99  0  0
0  0  97204 128984  57976 386120    0    0     0    17 1000 1046  1  2 98  0  0
0  0  97204 133192  57984 386120    0    0     0    19 1078 1109  1  4 95  0  0
0  0  97204 133200  58000 386120    0    0     0    48 1002  999  2  3 96  0  0
[oracle@localhost ~]$