New mode for network::f5::bigip::snmp and overall cpu usage stats

bigip f5 distributes its cpus in two groups:

odd-numbered index cpus (1,3,5,7...) are dedicated to data plane usage
even-numbered index cpus (2,4,6,8,...) are dedicated to control plane usage

reference https://my.f5.com/manage/s/article/K92615205

The current TMM-usage mode (https://github.com/centreon/centreon-plugins/blob/develop/src/network/f5/bigip/snmp/mode/tmmusage.pm) uses my $oid_sysTmmStatEntry = '.1.3.6.1.4.1.3375.2.1.8.2.3.1'; as entry tree to retrieve TMM usage cpu stats,so only half of the cpus, even-numbered index, are listed there. These are the most important ones because are those that handle the data traffic of the proxy. However management/control plane cpus are also important because they take care of multiple administrative operations that also require high computing resource in f5.

Unfortunately, there's no equivalent oid for non-TMM that only list the control plane dedicated cpus.

While inspecting bigip MIB (http://www.oidview.com/mibs/3375/F5-BIGIP-SYSTEM-MIB.html), the only option possible seems to use the generic sysMultiHostCpuEntry 1.3.6.1.4.1.3375.2.1.7.5.2.1

and under it, it will be insteresting to extract the following cpu metrics:

and then we would like to extract > report as perf name:

sysMultiHostCpuUsageRatio5s 1.3.6.1.4.1.3375.2.1.7.5.2.1.19 > load5s sysMultiHostCpuUser5s 1.3.6.1.4.1.3375.2.1.7.5.2.1.12 > user5s sysMultiHostCpuIowait5s 1.3.6.1.4.1.3375.2.1.7.5.2.1.18 > iowait5s sysMultiHostCpuSystem5s 1.3.6.1.4.1.3375.2.1.7.5.2.1.14 > system5s sysMultiHostCpuIdle5s 1.3.6.1.4.1.3375.2.1.7.5.2.1.15 > idle5s

sysMultiHostCpuUsageRatio1m 1.3.6.1.4.1.3375.2.1.7.5.2.1.27 > load1m sysMultiHostCpuUser1m 1.3.6.1.4.1.3375.2.1.7.5.2.1.20 > user1m sysMultiHostCpuIowait1m 1.3.6.1.4.1.3375.2.1.7.5.2.1.26 > iowait1m sysMultiHostCpuSystem1m 1.3.6.1.4.1.3375.2.1.7.5.2.1.22 > system1m sysMultiHostCpuIdle1m 1.3.6.1.4.1.3375.2.1.7.5.2.1.23 > idle1m

sysMultiHostCpuUsageRatio5m 1.3.6.1.4.1.3375.2.1.7.5.2.1.35 > load5m sysMultiHostCpuUser5m 1.3.6.1.4.1.3375.2.1.7.5.2.1.28 > user5m sysMultiHostCpuIowait5m 1.3.6.1.4.1.3375.2.1.7.5.2.1.34 > iowait5m sysMultiHostCpuSystem5m 1.3.6.1.4.1.3375.2.1.7.5.2.1.30 > system5m sysMultiHostCpuIdle5m 1.3.6.1.4.1.3375.2.1.7.5.2.1.31 > idle5m

I've tried to implement taking as base tmmusage.pm but my perl skills are not very good, to say something. Will try to raise a pr for it but any help and contribution will be more than appreciated. thanks!

centreon / centreon-plugins

New mode for network::f5::bigip::snmp and overall cpu usage stats #4699