new server tuning issue

[Nagarjuna Rao Cherukuri]

Hi,



We have installed RHEL AS 3 on our new server (HP Proliant DL 760 G2 - 4
Xeon CPUs 2.7GHz/2MB and 24 GM RAM). I see 50% of CPU being used for
"system" calls even though the server is doing nothing. I guess, it has
to do with some kernel parameters. Can anybody tell me where should I
start from to troubleshoot/tune this issue? A typical vmstat output
looks like this..



procs                      memory      swap          io     system
cpu

 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy
id wa

 1  1   5156  51736  11956 23781184    0    0    50    80   27    65  3
43 46  7

 1  2   5156  51744  11700 23781440    0    0     0    16  207   611  5
40 55  0

 1  0   5156  51732  11700 23781440    0    0     0     0  123   383  2
47 51  0

 1  0   5156  52504  11732 23781440    0    0     0    40  142   351  2
40 56  2

 1  0   5156  52504  11732 23781440    0    0     0     0  120   266  2
45 53  0





thanks

nagarjuna





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