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Description of problem:
This is a follow up on the closed BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1432240
The current situation is: when applying cpu-partitioning profile, there is still a misleading assertion error. See the detail of this assertion error we recently came across in another BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1432240, see comment2 for the reproduce of this assertion error.
This is quite annoying and misleading and we need to fix that.
Here is what I think the cause of this assertion error: in https://github.com/redhat-performance/tuned/blob/master/tuned/profiles/functions/function_assertion.py
the strings used for the compare on line 22 are not sorted list, say the left could be "1,3,5" and the right could be "3,5,1", even though they are the same but that if statement may end false. To fix it, they need to be sorted, so if change the if statement on line 22 to:
if ''.join(sorted(args[1].split(','))) != ''.join(sorted(args[1].split(','))):
that should solve the assertion issue.
Version-Release number of selected component (if applicable):
tuned-2.9.0-1.el7_5.2.noarch
tuned-profiles-cpu-partitioning-2.9.0-1.el7_5.2.noarch
How reproducible:
random. depends on the system.
Steps to Reproduce:
1. edit cpu-partitioning-variables.conf
# Examples:
# isolated_cores=2,4-7
isolated_cores=1,3,5,7,9
2. tuned-adm profile cpu-partitioning
Cannot load profile(s) 'cpu-partitioning': Assertion 'isolated_cores contains online CPU(s)' failed.
Actual results:
assertion error
Expected results:
no error
Additional info:
Sorry for the late reply, it seems this bug fell through the cracks... I think the problem you're describing is the same as the one recently reported here: bug#1706171. There's a patch, could you try it out?