We create the /etc/modprobe.d/kvm.rt.tuned.conf file at
every boot. However, there's nothing that guarantees that
the kvm module will be loaded after tuned. Indeed, it's
possible to reproduce a race where the kvm module is loaded
before tuned. When this happens, the kvm module will be
loaded with incorrect parameters as the kvm.rt.tuned.conf
file doesn't exist.
The solution to this problem is to create the kvm.rt.tuned.conf
file only if it doesn't exist and delete it when changing
profiles.
Resolves: rhbz#1292117
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
profiles/realtime-virtual-host/script.sh | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
Upon stop action the script is called the following way:
script.sh stop [$HINT]
$HINT is not used if the stop is result of tuned
shutdown. $HINT is set to "profile_switch" if the stop is
result of profile switch.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Added new tuned-adm functionality 'profile_info'. It has optional parameter
'profile_name'. If called without parameter, active profile is used.
It outputs name of the profile it is querying, profile summary, and profile
description. If there is no profile summary or description available it
outputs empty string(s).
Extended tuned-adm 'list' functionality. It now displays profile summary
in the list (if available).
Added summary to profiles.
Extended D-Bus API to support the new feature and for better Cockpit support:
- Added 'profile_info' method. It gets profile_name argument and it queries
the requested profile for information. If profile_name is empty string it
queries the active/selected profile. It returns tuple of the following
format (status, profile_name, summary, description), where status is
boolean. If it is False, the query mechanism failed and the other fields
don't contain valid data
- Added 'profiles2' method. It's extension of 'profiles' method. It returns
list of tuples. Tuples have following format:
(profile_name, profile_summary)
Related: rhbz#1228356
Fixes: #46
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
In case sysctl option doesn't exist (e.g. is unsupported on the
system), the verification now passes.
Related: rhbz#1252153
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
The bootloader plugin adds there GRUB_CMDLINE_LINUX_DEFAULT tuned setting
which should be removed upon Tuned uninstallation. This commit fixes
the regex used in %postun to correctly remove the Tuned footprint from
there.
Resolves: rhbz#1268845
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
The latest RHEL and RT kernels got support for setting the cpumask of unbound
workqueues in sysfs (https://bugzilla.redhat.com/show_bug.cgi?id=1176155).
This patch sets the unbound workqueues cpumask to the list of non-isolated
cores for the real-time profiles.
Patch from Luiz Capitulino <lcapitulino@redhat.com>
Resolves: rhbz#1259043
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
If the result of lapic-tsc-deadline kvm-unit-test continues
to decrease as ns increases, then use highest ns value.
Reported and tested by Luiz and Hai.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Resolves: rhbz#1267284
This plugin handles SCSI hosts. On Linux these are also used for SATA.
Currently it only supports ALPM setting, e.g.:
[scsi_host]
devices=host0
alpm=medium_power
ALPM is set per SATA/SCSI host. If SCSI host doesn't support ALPM
(it is SATA/AHCI specific), it is skipped and message is logged into
Tuned log with 'info' loglevel.
Concurrently the ALPM settings were removed from the 'disk' plugin.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
E.g.:
$ cat /sys/block/sda/queue/scheduler
noop [deadline] cfq
The 'save_sys' function needs to save 'deadline', not 'noop [deadline] cfq'.
Resolves: rhbz#1251507
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
There is no need to save and restore intel pstate attributes which aren't
changed by tuned profile.
Resolves: rhbz#1252156
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Unquoting first and last quotation mark in value, i.e. converting:
OPTION="VALUE" to OPTION=VALUE
Also added unquoting to profile verification, unquoting both
(current and requested) values.
Resolves: rhbz#1254538
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
It needs to use unique ',ANYSTRING' suffix, everything after the last ','
will be stripped by the parser, e.g.:
[balanced,1]
/FILE1=RE1
[balanced,2]
/FILE2=RE2
This will set 'balanced' profile in case there is FILE1 matching RE1 or
FILE2 matching RE2 or both. There is no need to use the suffix
if the profile is specified only once.
Also improved description in the recommend.conf.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Incorporated fix from Arnaldo Carvalho de Melo <acme@redhat.com>.
Updated credits and made them UTF-8.
Resolves: rhbz#1247184
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
- unquote '"' from the cmdline, i.e. the following will give same results:
[bootloader]
cmdline="vga=ask"
[bootloader]
cmdline=vga=ask
no more double quotes in grub.cfg:
set tuned_params=""vga=ask""
- fixed /etc/default/grub, so grub2-mkconfig no longer introduces
space before $tuned_params added to kernel in grub.cfg
- added support for 'linux' keyword (on aarch64)
- minor improvements regarding newlines
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Precompiling regular expressions for runtime tuning and do not
log errors like process doesn't exist in runtime tuning.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
It can now tune newly created processes. This functionality
is by default on and can be disabled in tuned profile by setting:
[scheduler]
runtime = 0
This is temporaly workaround. In the future this will be handled
by per-plugin dynamic_tuning configuration and not by "runtime"
option.
resolves: rhbz#1148546
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Most of the functionality don' work in this mode, it just
applies the settings, no rollback possible.
Disable daemon by setting 'daemon = 0' in /etc/tuned/tuned-main.conf
This settings can be overridden if running tuned with '-d' command line
option. In such case daemon mode will be used.
Resolves: rhbz#1068663
Also fixed interpretation of booleans in main config.
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>
