ucd-net CPU usage

[Pin007]

I´m testing graphing of CPU usage of linux server via ucd-net MIB tree.

I´m using standart OID. When I count total usage I get more than 100%, have someone some idea? I know that it is great that my server works so well but...

Cacti 0.8.6d, polling by cactid 0.8.6d
Tested server is Linux, Gentoo, kernel 2.6.12
/proc/cpuinfo (I have really 1 proc :
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 13
model name : Intel(R) Pentium(R) M processor 1.60GHz
stepping : 6
cpu MHz : 1595.263
cache size : 2048 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe est tm2
bogomips : 3153.92

[stigmata]

how are you monitoring the IO wait? I search for a long time for a solution.... please help meeee )

[Pin007]

how are you monitoring the IO wait? I search for a long time for a solution.... please help meeee )

That is problem what I try to solve for several weeks, this graph was meassured on PC with Gentoo, kernel 2.6, I've tried to meassure some another server with RedHat but IOwait is still nan.

I compare the kernel configs, but all that should influece this is same on both machines.

In MIB is note that it is SysV feature, but thats all I know now