ssCpuUser, ssCpuSystem and ssCpuIdle are not actual CPU usage.

Solution Unverified - Updated -

Issue

  • ssCpuUser, ssCpuSystem and ssCpuIdle are not actual CPU usage.
    $ snmpwalk -v 1 -c public localhost .1.3.6.1.4.1.2021.11
UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 77
UCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 7
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 15

$ mpstat -P ALL | grep all
11:19:30:  all    4.06    0.00    0.38    0.16    0.01    0.00   95.39   1677.13

$ cat /proc/stat | head -n 1
cpu  184316580 536 17471440 4330969792 7428259 242188 0

Environment

  • Red Hat Enterprise Linux 4
  • net-snmp

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