Nagios and Gearman - huge environment performance problem

[Mark Goldfinch]

----- Original Message -----

> From: "Rodney Ramos" <rodneyra at gmail.com>
> To: "Nagios Developers List" <nagios-devel at lists.sourceforge.net>
> Sent: Wednesday, 24 August, 2011 8:21:42 AM
> Subject: Re: [Nagios-devel] Nagios and Gearman - huge environment
> performance problem
>
> But, as Daniel said, there is one thing that I can´t understand. Why
> my idle CPU is with 87%? It´s very weird. Is there something that
> makes the performance better? A Nagios or Operation System
> parameter?

On this particular point, the overall system CPU statistics displayed at the top of "top" are an average across all CPUs.  As previously mooted, Nagios core isn't multi-threaded, so it can only max a single core.  100% of 1/8 CPUs == 12.5% hence why you're seeing 87.5% idle time, 7 of your cores are not stressed out.

Thanks,
Mark.

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