housekeeper processes busy to 100%

[mehow]

I need to find out why housekeeper goes to up 100%, history syncer also at the same time jumps to around 50%...

[IanStewart_Inoapps]

We use Zabbix to monitor our virtualised environment, recently, well within the last 24 hours, one of our graphs has taken a decidely 'odd' look to it.

The attached graph is CPU Utilization. My rudimentary understanding is that Idle Time + System Time + User Time should equal 100%. However,...