how to add script to custom tuned-adm profile?

Latest response

I'm using such tuned-adm profile:

cat /etc/tuned/myprofile/tuned.conf
[main]
include=network-latency

[bootloader]
cmdline = isolcpus=1-11 nohz_full=1-11

Now I want to add such script to this profile:
for i in pgrep rcuo ; do taskset -pc 0 $i ; done

How can I do this?

ov
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Responses

Siem Korteweg's picture Guru 1450 points
22 September 2015 5:32 AM

Plesae refer to https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Power_Management_Guide/tuned-adm.html. Specific actions actions could be added to the ktune.sh scipt in your myprofile directory.

ov Active Contributor 244 points
24 September 2015 12:04 PM

Thanks, this instructions are for RHEL6, i'm afraid they might be not applicable in RHEL7.1
In RHEL 7 Power Management guide I can not find mention of "ktune.sh"

In RHEL 6 it's recommended to start with this command line "cp -a /etc/tune-profiles/laptop-battery-powersave/ /etc/tune-profiles/myprofile" but I can not find "/etc/tune-profiles" folder in RHEL 7.

jb Active Contributor 245 points
28 September 2015 4:02 PM

rpm -ql tuned
...
/usr/lib/tuned/balanced
/usr/lib/tuned/powersave
...

[root@vmt-rhel7-01:~]# cp -pr /usr/lib/tuned/powersave /usr/lib/tuned/test
[root@vmt-rhel7-01:~]# tuned-adm list
Available profiles:
- balanced
- desktop
- latency-performance
- network-latency
- network-throughput
- powersave
- test

ov Active Contributor 244 points
8 November 2015 11:02 PM

Thanks, note that doc suggests to use another place for custom profiles: "Do not change the profiles in /usr/lib/tuned. If you need to customize the profile, copy the profile directory to the /etc/tuned directory. This is the place for the custom profiles."

Also I have found that in RHEL7 I should use script.sh instead of ktune.sh. I've tried and it works!

[root@localhost ovazhnev]# cat /etc/tuned/myprofile/
script.sh tuned.conf
[root@localhost ovazhnev]# cat /etc/tuned/myprofile/tuned.conf
[main]
include=network-latency

[bootloader]
cmdline = isolcpus=1-13 nohz_full=1-13

[script]
script=script.sh
[root@localhost ovazhnev]# cat /etc/tuned/myprofile/script.sh

!/bin/sh

. /usr/lib/tuned/functions

start() {
for i in pgrep rcuo
do
taskset -pc 0 $i
done
return 0
}

stop() {
return 0
}

process $@

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