3747701d1c
The interruptions avoided by the rtentsk logic: "Add plugin to open a socket with SOF_TIMESTAMPING_OPT_TX_SWHW. This is for avoiding interruptions due to static key IPIs due to opening socket with timestamping enabled (by opening a socket ourselves the static key is kept enabled)." Are also desired on systems that use cpu-partitioning. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
60 lines
2.2 KiB
Text
60 lines
2.2 KiB
Text
# tuned configuration
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#
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# Red Hat Enterprise Linux for Real Time Documentation:
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# https://docs.redhat.com
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[main]
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summary=Optimize for realtime workloads
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include = network-latency
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[variables]
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# User is responsible for updating variables.conf with variable content such as isolated_cores=X-Y
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include = /etc/tuned/realtime-variables.conf
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isolated_cores_assert_check = \\${isolated_cores}
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# Make sure isolated_cores is defined before any of the variables that
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# use it (such as assert1) are defined, so that child profiles can set
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# isolated_cores directly in the profile (tuned.conf)
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isolated_cores = ${isolated_cores}
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# Fail if isolated_cores are not set
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assert1=${f:assertion_non_equal:isolated_cores are set:${isolated_cores}:${isolated_cores_assert_check}}
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# Non-isolated cores cpumask including offline cores
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not_isolated_cpumask = ${f:cpulist2hex_invert:${isolated_cores}}
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isolated_cores_expanded=${f:cpulist_unpack:${isolated_cores}}
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isolated_cpumask=${f:cpulist2hex:${isolated_cores_expanded}}
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isolated_cores_online_expanded=${f:cpulist_online:${isolated_cores}}
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# Fail if isolated_cores contains CPUs which are not online
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assert2=${f:assertion:isolated_cores contains online CPU(s):${isolated_cores_expanded}:${isolated_cores_online_expanded}}
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# Assembly managed_irq
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# Make sure isolate_managed_irq is defined before any of the variables that
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# use it (such as managed_irq) are defined, so that child profiles can set
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# isolate_managed_irq directly in the profile (tuned.conf)
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isolate_managed_irq = ${isolate_managed_irq}
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managed_irq=${f:regex_search_ternary:${isolate_managed_irq}:\b[y,Y,1,t,T]\b:managed_irq,domain,:}
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[net]
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channels=combined ${f:check_net_queue_count:${netdev_queue_count}}
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[sysctl]
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kernel.sched_rt_runtime_us = -1
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[sysfs]
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/sys/bus/workqueue/devices/writeback/cpumask = ${not_isolated_cpumask}
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/sys/devices/virtual/workqueue/cpumask = ${not_isolated_cpumask}
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/sys/devices/virtual/workqueue/*/cpumask = ${not_isolated_cpumask}
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/sys/devices/system/machinecheck/machinecheck*/ignore_ce = 1
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[bootloader]
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cmdline_realtime=+isolcpus=${managed_irq}${isolated_cores} intel_pstate=disable nosoftlockup
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[irqbalance]
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banned_cpus=${isolated_cores}
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[script]
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script = ${i:PROFILE_DIR}/script.sh
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[scheduler]
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isolated_cores=${isolated_cores}
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