tuned(8) realtime-virtual-{host|guest} profiles set Kernel and
KVM module parameters via script.sh plugin. These parameters are
to be verified in a verify() function, invoked by tuned-adm verify
command.
This patch updates verify() functions to validate KVM module
parameters.
It moves kernel parameters to the tuned.conf file under the
[sysfs] & [sysctl] plugin sections. And removes call to
disable_ksm function, no longer required.
Fixes: RHBZ#1947858
RHEL will include a backport of the kernel patch
"do not raise timer softirq unconditionally (spinlockless version)"
(https://lkml.org/lkml/2019/4/15/1215), but disabled by default.
Enable it in realtime-virtual-{host/guest} profiles as it decreases
maximum cyclictest latency.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
The rt-entsk application, part of newer rt-setup packages,
worksaround a latency issue with static key
IPI's. What it does it:
/*
* Open a socket, and enable timestamping on it.
*
* This is to avoid Chrony from changing timestamping
* user count from 0->1 and vice-versa, causing
* static key enable/disable IPIs.
*
*/
Start/stop the systemctl service from the realtime-virtual-host
and realtime-virtual-guest profiles.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
In the cpu-partitioning profile, IRQ affinity change is already done
as part of the 'isolated_cores' option of the scheduler plugin, so
calling defirqaffinity is, at best, redundant. So let's remove the call.
In the realtime* profiles, it's essentially the same, except that tuna
was used instead of isolated_cores. So let's use built-in functionality
instead of tuna and drop calls to defirqaffinity.
Resolves: rhbz#1590937
Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
Tuna is already executed in the realtime profile which is included by
the realtime-virtual-host/guest profiles, there is no need to execute
it twice. Also fixed minor whitespace inconsistency.
Related: rhbz#1472840
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Profiles shipped in tuned-profiles-nfv subpackage. The content was provided
by Jeremy Eder <jeder@redhat.com> and Clark Williams <williams@redhat.com>.
Resolves: rhbz#1228803
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
