Hallo,
before this drives me crazy: I am pulling the ssCpuRawIdle counter from M0n0wall 1.231 installed on a Soekris box. In my understanding the sum of idle-, user and system-time should equal the total time. So if I poll with f.e. a 120 second-delta it should be easy to calculate the % of idle CPU time.
Let's do some maths:
Delta: 1180990837-1180990710 = 127 seconds
Idle: 357383171-357367509 = 15662 ticks
System: 18994663-18994462 = 201 ticks
User: 212313-212311 = 2 ticks
100 ticks = 1 second
156,62 + 2,01 + 0,02 = 158,65 seconds which is *not* the same as 127
Below the whole trace ...
Any idea?
TIA Ingo
$ date +%s && snmpwalk -c mg5 -mAll -v2c fw2 .1.3.6.1.4.1.2021.11 && sleep 120 && date +%s && snmpwalk -c mg5 -mAll -v2c fw2 .1.3.6.1.4.1.2021.11
1180990710
UCD-SNMP-MIB::ssIndex.0 = INTEGER: 1
UCD-SNMP-MIB::ssErrorName.0 = STRING: systemStats
UCD-SNMP-MIB::ssSwapIn.0 = INTEGER: 0
UCD-SNMP-MIB::ssSwapOut.0 = INTEGER: 0
UCD-SNMP-MIB::ssSysInterrupts.0 = INTEGER: 1115
UCD-SNMP-MIB::ssSysContext.0 = INTEGER: 5
UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 0
UCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 0
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 99
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 212311
UCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 158065
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 18994462
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 357367509
UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 340693
UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 18653769
UCD-SNMP-MIB::ssRawInterrupts.0 = Counter32: 3657067098
UCD-SNMP-MIB::ssRawContexts.0 = Counter32: 15219741
1180990837
UCD-SNMP-MIB::ssIndex.0 = INTEGER: 1
UCD-SNMP-MIB::ssErrorName.0 = STRING: systemStats
UCD-SNMP-MIB::ssSwapIn.0 = INTEGER: 0
UCD-SNMP-MIB::ssSwapOut.0 = INTEGER: 0
UCD-SNMP-MIB::ssSysInterrupts.0 = INTEGER: 1126
UCD-SNMP-MIB::ssSysContext.0 = INTEGER: 5
UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 0
UCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 1
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 98
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 212313
UCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 158068
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 18994663
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 357383171
UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 340705
UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 18653958
UCD-SNMP-MIB::ssRawInterrupts.0 = Counter32: 3657208214
UCD-SNMP-MIB::ssRawContexts.0 = Counter32: 15220351
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Topic: SNMP - ssCpuRaw Counter