What is a common cause for high sys CPU time and system faults on an Iplanet server?

Question

Hi,
A newbie question...
I am benchmarking an application which uses Iplanet on Solaris (2X400mhz cpus). vmstat output follows.
Note the high sys time and relatively lower user mode time. Also relatively high system fault rate. Is this
normal? If not, common causes?
fyi - we are not running Java VM on this server.
I have TRUSS output showing kernal activity but dont want to post it here without some further guidance
on what if anything in it might be helpful.
Thanks!
Bernie
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 s6 s7 s8 in sy cs us sy id
0 0 0 2494224 481536 3 10 3 0 0 0 0 1 0 1 0 413 697 443 1 2 97
0 0 0 2428464 414368 0 122 0 0 0 0 0 45 0 45 0 972 53598 575 5 28 67
1 0 0 2428512 414456 0 242 0 0 0 0 0 0 0 0 0 563 1368 756 4 46 50
0 0 0 2428440 414440 0 263 0 0 0 0 0 0 0 0 0 636 2229 1268 6 49 46
1 0 0 2428240 414264 10 253 0 0 0 0 0 6 0 6 0 692 176918 873 16 49 3

Answer 1

Hello
You can change the DB isolation level to Read uncommitted
http://technet.microsoft.com/en-us/library/ms378149(v=sql.110).aspx
or use WITH (NOLOCK)
I do use NOLOCK option for the dirty reads to avoid locks on the tables
Javier Villegas |
@javier_vill | http://sql-javier-villegas.blogspot.com/
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