4f5f35830a
This is a minimal viable implementation of a post-loaded profile feature. It was implemented to satisfy the needs of the kernel_settings Ansible role. https://github.com/linux-system-roles/kernel_settings This feature allows us to apply a profile in a way that is somewhat separate from the way profiles from the active_profile file are applied. Namely, the post-loaded profile is always applied after all the profiles from the active_profile (or more precisely, the post-loaded profile is always put to the tail of the profile chain when merging). Also, the post-loaded profile setting is not affected by running 'tuned-adm profile <some profile>' - the post-loaded profile remains applied. The name of the post-loaded profile is stored in /etc/tuned/post_loaded_profile. The lack of support for multiple post-loaded profiles was more or less an arbitrary decision. There are no problems with it, as far as I can see. However, there is currently no use case for multiple post-loaded profiles, so I decided to make things easier for our future selves - it's one less thing to worry about if we need to make changes to the profile loading logic. We can add support for multiple post-loaded profiles anytime. A number of other design decisions went into the implementation. They are listed here: https://github.com/redhat-performance/tuned/pull/272 Resolves: rhbz#1798183 Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com> |
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