octavia/elements/cpu-pinning/environment.d/80-kernel-cpu-affinity

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#!/bin/bash
#
# Copyright Red Hat
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -euo pipefail
case $DISTRO_NAME in
ubuntu | debian | fedora | centos* | rhel* )
DIB_BOOTLOADER_DEFAULT_CMDLINE+=" irqaffinity=0"
# This will be ignored on single vCPU systems
DIB_BOOTLOADER_DEFAULT_CMDLINE+=" isolcpus=1-N"
DIB_BOOTLOADER_DEFAULT_CMDLINE+=" nohz=on nohz_full=1-N"
export DIB_BOOTLOADER_DEFAULT_CMDLINE
;;
*)
echo "ERROR: Unsupported distribution $DISTRO_NAME"
exit 1
;;
esac