Users can switch to Tuned if they need process blacklisting
(i.e. marking of processes which are allowed to run on
isolated cores). This will be very probably made the default
in next Tuned release.
Related: rhbz#1403309
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Plugin scheduler now can do cores isolation on its own, Tuna is
not needed for it, e.g.:
[scheduler]
isolated_cores=2-4
ps_blacklist=.*pmd.*;.*PMD.*;^DPDK;.*qemu-kvm.*
It will isolate cores 2-4, it will ignore processes which matched
ps_blacklist regexes. Multiple regexes can be separated by ';'.
Quoted semicolon, i.e. '\;' is taken literally.
It also supports 'ps_whitelist' which is by default set to '.*'.
It takes all processes which matches ps_whitelist than it removes
those which matches ps_blacklist and move them out of the
isolated_cores. When the profile is unloaded it allows all matching
processes to run on all cores.
It changes processes affinities, threads affinities, IRQs affinities
and it sets default_smp_affinity for IRQs.
Also cpu-partitioning profile has been switched from Tuna to this
mechanism.
Resolves: rhbz#1403309
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
With systemd full rollback is done if Tuned is terminated by user or profile
is changed. It is not done if Tuned is terminated due to system
shutdown / reboot. Without systemd full rollback is done only if profile
is changed.
Renamed profile_switch parameter to full_rollback where appropriate.
Also fixed various checks for command not found.
Resolves: rhbz#1421286
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
This adds 00-tuned-pre-udev.sh script into initrd image which is getting
tuned.cpumask kernel command line parameter and sets workqueue affinity
accordingly.
Resolves: rhbz#1395899
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Otherwise, a process running on isolated CPUs will be
interrupted by timers or unwanted VM exists.
Resolves: rhbz#1395855
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The profile is delivered in the new tuned-profiles-cpu-partitioning subpackage.
Also moved defirqaffinity.py to the base package to allow other profiles
to use it.
Resolves: rhbz#1359956
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
