[Xymon] xymon client resource usage

[Japheth Cleaver]

On 10/10/2011 12:10 PM, T.J. Yang wrote:
> Hi, All
>
> This is a question we got asked a lot when trying to deploy a
> xymon/hobbit client onto a production system.
>
> How much system resource(cpu/memory) will xymon/hobbit client consumes ?
>
> Any one has a script or C program on doing this measurement ?
>
> Procedure:
>
> 1. Deploy xymon client
> 2. Run this program for 3 days.
> 3. Here is the report of xymon cpu/memory usage for past 3 days.
>
> I am interested to tackle this task but hopefully some one already did
> this work and willing to share.
>
> Regards
>
> tj

I ran this at $currentjob-- and the load was literally 
indistinguishable. We even ran rotating :30s sadc collectors, fired off 
in 1m increments (to get high-detail last-5-minute metrics in the client 
reports for analysis in status-change logs) and noticed no change 
whatsoever in non-broken boxes.

If things like 'df' and 'top' cause appreciable load, the box is 
probably already in bad shape.

If you want to reduce generic impact even further, think about things 
like having /dev/shm/ as your BBTMP (on linux), or firing xymonclient.sh 
off via SSH call or cron as an existing user (no xymonlaunch = 1 less 
daemon).

HTH,

-jc