On Mon, Sep 26, 2005 at 01:58:37PM -0500, Adam Scheblein wrote:
Recently i have been trying to create a custom script that grabs cpu utilization percentage, however when i try to get it to graph, it will not work... I have read the man page for hobbitd_rrd as well as the message thread "custom RRD data" in the hobbit mailing list archives, however i still cannot get it to work.
Here is my client script:
[snip]
$BB $BBDISP "status $MACHINE.$TEST $COLOR
date- $STATUS Used CPU: $USED_CPU"
This sends a one-line status report with the text green Tue Sep 27 23:11:49 CEST 2005 - ok Used CPU: 15
Here is my feeder script on the server side: [snip] # Analyze the message we got cpu2=grep "^OK - " $FNAME | awk '{ print $11 }'
This line looks for "OK" at the beginning of a line (but it is in the middle of the line, and in lowercase). So it probably won't find anything, and $cpu2 will be blank.
If you do want to use an extension script for this, I'd suggest sending in the status message like this:
$BB $BBDISP "status $MACHINE.$TEST $COLOR date - $STATUS
Used CPU: $USED_CPU"
i.e. split it on two lines, and have just the "Used CPU: X" on a line by itself. Then your feeder script should be
cpu2=grep "^Used CPU:" $FNAME | awk '{ print $3 }'However, there's a simpler way of getting the same result. Assuming you already have the vmstat data - e.g. from the Hobbit client, or by running the BB client with the LARRD add-on - you can leverage those data and generate the same graph by changing the [la] graph definition in your hobbitgraph.cfg to this:
[la] TITLE CPU Utilitization YAXIS % Used -u 100 -r DEF:cpu_idl=vmstat.rrd:cpu_idl:AVERAGE CDEF:pbusy=100,cpu_idl,- LINE2:pbusy#00CC00:% CPU busy GPRINT:pbusy:LAST: \: %5.1lf (cur) GPRINT:pbusy:MAX: \: %5.1lf (max) GPRINT:pbusy:MIN: \: %5.1lf (min) GPRINT:pbusy:AVERAGE: \: %5.1lf (avg)\n
This determines the CPU busy percentage as (100 - idle %).
Regards, Henrik