Re: [pcp] CPU metris in Percentage instead of millisec

[William_Staten@xxxxxxxxxxxxxxx]

Thanks Nathan. I updated the pmwebd.options
file with the PCP_DERIVED_CONFIG=/path/to/your/file. If I run export PCP_DERIVED_CONFIG=pathtofile
and then pmval -t 2sec cpu.percent.user I can see the output in percentage.
Is it a way to get this sent to the graphite or grafana for graphing? Is
any documentation on that? I have searched for some documentation but maybe
I am not looking in the correct place. 

Thanks

William Staten
I.T. Operations
Information Services
Navy Federal Credit Union
wk: 703.206.3198
cell: 703.300.0743



From:      
 Nathan Scott <nathans@xxxxxxxxxx>
To:      
 William Staten <William_Staten@xxxxxxxxxxxxxxx>,

Cc:      
 <pcp@xxxxxxxxxxx>
Date:      
 05/04/2016 09:53 PM
Subject:    
   Re: [pcp] CPU
metris in Percentage instead of millisec

---

Hi William,

----- Original Message -----
> I wanted to know if it was a way in Performance CO-Pilot to get the
CPU
> metrics to get logged as Percentage instead of millisec. If it is
possible
> where would I create this?

You probably want to use "derived metrics" in this situation
- continue
logging metrics as counters, but later present them to the PCP tools as
new metrics where the values have been transformed into percentages.

This configuration file should do it:

cpu.percent.user = 100 * (kernel.all.cpu.user + kernel.all.cpu.nice) /
hinv.ncpu
cpu.percent.sys = 100 * kernel.all.cpu.sys / hinv.ncpu
cpu.percent.idle = 100 * kernel.all.cpu.idle / hinv.ncpu
cpu.percent.wait = 100 * kernel.all.cpu.wait.total / hinv.ncpu
cpu.percent.steal = 100 * kernel.all.cpu.steal / hinv.ncpu

There's more details on the PCPIntro(1) man page, in the $PCP_DERIVED_CONFIG
section (under "ENVIRONMENT").

cheers.

--
Nathan