64decfe756
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>
47 lines
1.6 KiB
Text
47 lines
1.6 KiB
Text
# tuned configuration
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#
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[main]
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summary=Optimize for CPU partitioning
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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/cpu-partitioning-variables.conf
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# tmpdir
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tmpdir=${f:exec:/usr/bin/mktemp:-d}
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# Non-isolated cores cpumask including offline cores
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isolated_cores_expanded=${f:cpulist_unpack:${isolated_cores}}
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isolated_cpumask=${f:cpulist2hex:${isolated_cores_expanded}}
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not_isolated_cores_expanded=${f:cpulist_invert:${isolated_cores_expanded}}
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isolated_cores_present_expanded=${f:cpulist_present:${isolated_cores}}
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not_isolated_cores_present_expanded=${f:cpulist_present:${not_isolated_cores_expanded}}
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not_isolated_cpumask=${f:cpulist2hex:${not_isolated_cores_expanded}}
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# Fail if isolated_cores contains CPUs which are not present
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assert=${f:assertion:isolated_cores contains present CPU(s):${isolated_cores_expanded}:${isolated_cores_present_expanded}}
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[sysctl]
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kernel.hung_task_timeout_secs = 600
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kernel.nmi_watchdog = 0
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vm.stat_interval = 10
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kernel.timer_migration = 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 = ${not_isolated_cpumask}
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/sys/devices/system/machinecheck/machinecheck*/ignore_ce = 1
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[systemd]
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cpu_affinity=${not_isolated_cores_expanded}
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[script]
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priority=5
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script=script.sh
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[bootloader]
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priority=10
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initrd_remove_dir=True
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initrd_dst_img=tuned-initrd.img
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initrd_add_dir=${tmpdir}
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cmdline= nohz=on nohz_full=${isolated_cores} rcu_nocbs=${isolated_cores} tuned.cpumask=${not_isolated_cpumask} intel_pstate=disable nosoftlockup
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