[Check_mk (english)] check_mk_agent.aix "number of threads" gives number of process, should be fixed

[Gilles Pion]

Hello,

In the output of  "cpu" section of check_mk_agent.aix the value after
the "/" is supposed to be the number of threads

The code used to compute this value uses the following statement:
ps=`ps -ef|wc -l|sed -e 's;[[:space:]]\{1,\};;'`
which really gives  the number of *processes*

Maybe would be better to use the following command :
ps=`/usr/bin/ps -eo thcount | awk '{SUM+=$1} END {print SUM}'`


--
Gilles Pion

[Florian Heigl]

On Sat, 1 Oct 2011 11:15:43 +0200, Gilles Pion

Post by Gilles Pion
In the output of  "cpu" section of check_mk_agent.aix the value after
the "/" is supposed to be the number of threads
ps=`ps -ef|wc -l|sed -e 's;[[:space:]]\{1,\};;'`
which really gives  the number of *processes*
ps=`/usr/bin/ps -eo thcount | awk '{SUM+=$1} END {print SUM}'`

Is it still like this on AIX that all even PIDs are processes and uneven
are threads?

[Gilles Pion]

Post by Florian Heigl
Is it still like this on AIX that all even PIDs are processes and uneven
are threads?

Not sure (do not have access to AIX machine until next week)

[Mirza Dedic]

I have access to an AIX 7.x (very heavy load/busy) machine if you want to validate anything shoot me some instructions.

-----Original Message-----
Sent: Saturday, October 01, 2011 3:56 AM
Subject: Re: [Check_mk (english)] check_mk_agent.aix "number of threads"
gives number of process, should be fixed

Post by Florian Heigl
Is it still like this on AIX that all even PIDs are processes and
uneven are threads?

Not sure (do not have access to AIX machine until next week)
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[Florian Heigl]

Hi,

Post by Mirza Dedic
I have access to an AIX 7.x (very heavy load/busy) machine if you want

to

Post by Mirza Dedic
validate anything shoot me some instructions.

[censored multiple lines of expressing envy]

yes it would be making things very easy if you could test the commands for
us.

- how many processes were running
- how many threads did they have (total)

does the check output match that?

- does -o threads (or what it was... don't remember) count processes +
threads or just the threads?

what kind of UNIX95 syntax is mentioned in the ps manpage? (trying to keep
it easy)

Thanks,
florian

[Gilles Pion]

Post by Florian Heigl
- does -o threads (or what it was... don't remember) count processes +
threads or just the threads?

it's "-o thcount" and the resulting "THCNT" column is the number of
active thread for each process, which is then summed by the awk
expression.

You may try for exemple:
$ ps -eo pid,thcount | head
which gives something like:
PID THCNT
1 1
98418 14
131262 1
139422 1
159898
168152 29
180346 1
184512 1
188508 1


So the result of following command:
/usr/bin/ps -eo thcount | awk '{SUM+=$1} END {print SUM}'`
will compute the total number of threads in the system (kernel
processes may be included in the total by adding "k" flag to "ps":
"ps -ek" )