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Description of problem:
=======================
There was implemented new feature for support negation in the CPU list for cpu-partitioning profile.
Currently it is implemented to exclude cpus one by one:
# cat /etc/tuned/cpu-partitioning-variables.conf
isolated_cores=1-20,!5,!6,!7,!8
It would be nice to exclude it together:
# cat /etc/tuned/cpu-partitioning-variables.conf
isolated_cores=1-20,!5-8
Version-Release number of selected component (if applicable):
=============================================================
tuned-2.9.0-1.el7.noarch
tuned-profiles-cpu-partitioning-2.9.0-1.el7.noarch
How reproducible:
=================
always
Steps to Reproduce:
===================
1. Have machine with more than 8 CPUs.
2. Fill cpu-partitioning-variables.conf:
# echo 'isolated_cores=2-6,!3-4' > /etc/tuned/cpu-partitioning-variables.conf
3. Activate profile
# tuned-adm profile cpu-partitioning
4. See log information
# cat /var/log/tuned/tuned.log | grep CPUAffinity
2018-01-12 08:44:53,505 INFO tuned.plugins.plugin_systemd: setting 'CPUAffinity' to '0 2 3 4 5 6 7' in the '/etc/systemd/system.conf'
Actual results:
===============
2018-01-12 08:44:53,505 INFO tuned.plugins.plugin_systemd: setting 'CPUAffinity' to '0 2 3 4 5 6 7' in the '/etc/systemd/system.conf'
Expected results:
=================
2018-01-12 08:44:53,505 INFO tuned.plugins.plugin_systemd: setting 'CPUAffinity' to '0 1 3 4 7' in the '/etc/systemd/system.conf'
Additional info:
================
Existing test case:
/CoreOS/tuned/Regression/add-support-for-negation-in-cpu-list-for-profile-cpu-partitioning
For this bug is relevant 'Test 4. - Exclude list of cpus'
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2019:2201