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tuned/profiles/realtime/tuned.conf
Jaroslav Škarvada 5ed61ce394
realtime: added conditional support for managed_irq
Also added regex_search_ternary built-in function.

It takes arguments in the following form:
  STR1, REGEX, STR2, STR3

If REGEX matches STR1 (re.search is used), STR2 is returned,
if it doesn't match STR3 is returned.

Example:
[variables]
foo=Y
bar=${f:regex_search_ternary:${foo}:\b[y,Y,1,t,T]\b:foo:bar}

It will result in the 'foo' string stored in the '${bar}' variable.

Resolves: rhbz#1797025

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
2020-03-23 14:43:47 +01:00

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# tuned configuration
#
# Red Hat Enterprise Linux for Real Time Documentation:
# https://docs.redhat.com
[main]
summary=Optimize for realtime workloads
include = network-latency
[variables]
# User is responsible for updating variables.conf with variable content such as isolated_cores=X-Y
include = /etc/tuned/realtime-variables.conf
isolated_cores_assert_check = \\${isolated_cores}
# Make sure isolated_cores is defined before any of the variables that
# use it (such as assert1) are defined, so that child profiles can set
# isolated_cores directly in the profile (tuned.conf)
isolated_cores = ${isolated_cores}
# Fail if isolated_cores are not set
assert1=${f:assertion_non_equal:isolated_cores are set:${isolated_cores}:${isolated_cores_assert_check}}
# Non-isolated cores cpumask including offline cores
not_isolated_cpumask = ${f:cpulist2hex_invert:${isolated_cores}}
isolated_cores_expanded=${f:cpulist_unpack:${isolated_cores}}
isolated_cpumask=${f:cpulist2hex:${isolated_cores_expanded}}
isolated_cores_online_expanded=${f:cpulist_online:${isolated_cores}}
# Fail if isolated_cores contains CPUs which are not online
assert2=${f:assertion:isolated_cores contains online CPU(s):${isolated_cores_expanded}:${isolated_cores_online_expanded}}
# Assembly managed_irq
managed_irq=${f:regex_search_ternary:${isolate_managed_irq}:\b[y,Y,1,t,T]\b:managed_irq,domain,:}
[sysctl]
kernel.hung_task_timeout_secs = 600
kernel.nmi_watchdog = 0
kernel.sched_rt_runtime_us = -1
vm.stat_interval = 10
kernel.timer_migration = 0
[sysfs]
/sys/bus/workqueue/devices/writeback/cpumask = ${not_isolated_cpumask}
/sys/devices/virtual/workqueue/cpumask = ${not_isolated_cpumask}
/sys/devices/system/machinecheck/machinecheck*/ignore_ce = 1
[bootloader]
cmdline_realtime=+isolcpus=${managed_irq}${isolated_cores} intel_pstate=disable nosoftlockup tsc=nowatchdog
[script]
script = ${i:PROFILE_DIR}/script.sh
[scheduler]
isolated_cores=${isolated_cores}