diff options
| -rw-r--r-- | ansible/install-inventory.ini | 7 | ||||
| -rw-r--r-- | ansible/install.yaml | 1 | ||||
| -rw-r--r-- | ansible/roles/enable_cpu_isolation_on_boot/defaults/main.yml | 21 | ||||
| -rw-r--r-- | ansible/roles/enable_cpu_isolation_on_boot/tasks/main.yml | 59 | ||||
| -rw-r--r-- | ansible/ubuntu_server_baremetal_deploy_samplevnfs.yml | 1 |
5 files changed, 88 insertions, 1 deletions
diff --git a/ansible/install-inventory.ini b/ansible/install-inventory.ini index d0a8ef927..bcd57db65 100644 --- a/ansible/install-inventory.ini +++ b/ansible/install-inventory.ini @@ -25,4 +25,9 @@ ubuntu_archive={"amd64": "http://archive.ubuntu.com/ubuntu/", "arm64": "http://p # path_to_img=/tmp/workspace/yardstick-image.img # Uncomment credentials below if needed # ansible_user=root -# ansible_pass=root +# ansible_ssh_pass=root + +# List of CPUs to be isolated (not used by default) +# Grub line will be extended with: "isolcpus=<ISOL_CPUS> nohz=on nohz_full=<ISOL_CPUS> rcu_nocbs=1<ISOL_CPUS>" +# ISOL_CPUS=2-27,30-55 # physical cpu's for all NUMA nodes, four cpu's reserved for kernel +# ISOL_CPUS=2-27,58-83 # physical cpu's for first NUMA node, four cpu's reserved for kernel diff --git a/ansible/install.yaml b/ansible/install.yaml index 6146c7f19..847f01c57 100644 --- a/ansible/install.yaml +++ b/ansible/install.yaml @@ -67,6 +67,7 @@ # can't update grub in chroot/docker - enable_hugepages_on_boot - enable_iommu_on_boot + - enable_cpu_isolation_on_boot # needed for collectd plugins - increase_open_file_limits - install_image_dependencies diff --git a/ansible/roles/enable_cpu_isolation_on_boot/defaults/main.yml b/ansible/roles/enable_cpu_isolation_on_boot/defaults/main.yml new file mode 100644 index 000000000..37c3fd8e1 --- /dev/null +++ b/ansible/roles/enable_cpu_isolation_on_boot/defaults/main.yml @@ -0,0 +1,21 @@ +# Copyright (c) 2018 Intel Corporation +# +# 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. +--- +grub_file: "/etc/default/grub" +isolcpus_help_string: ' # added by Yardstick ansible isolcpus role' +isolcpu_params: " isolcpus={{ ISOL_CPUS }} nohz=on nohz_full={{ ISOL_CPUS }} rcu_nocbs={{ ISOL_CPUS }}" +enable_isolcpu: 'GRUB_CMDLINE_LINUX="$GRUB_CMDLINE_LINUX{{ isolcpu_params }}"' +update_grub: + Debian: "update-grub2" + RedHat: "grub2-mkconfig -o /boot/grub2/grub.cfg" diff --git a/ansible/roles/enable_cpu_isolation_on_boot/tasks/main.yml b/ansible/roles/enable_cpu_isolation_on_boot/tasks/main.yml new file mode 100644 index 000000000..b41a2b307 --- /dev/null +++ b/ansible/roles/enable_cpu_isolation_on_boot/tasks/main.yml @@ -0,0 +1,59 @@ +# Copyright (c) 2018 Intel Corporation +# +# 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. +--- +- name: Check if isolcpus is set by this role in {{ grub_file}} + lineinfile: + path: "{{ grub_file }}" + regexp: '{{ isolcpus_help_string }}' + state: absent + check_mode: yes + register: is_nsb_isolcpus_role + ignore_errors: True + +- name: Check if isolcpus is set by someone else + lineinfile: + path: "{{ grub_file }}" + regexp: "isolcpus=" + state: absent + check_mode: yes + register: is_isolcpu + ignore_errors: True + +- name: Send warning that CPU isolation cannot be configured + debug: + msg: "WARNING: CPU isolation is not configured" + when: + - not is_nsb_isolcpus_role.changed and not is_isolcpu.changed + - ISOL_CPUS is not defined + +- name: Send info that CPU isolation configured by someone else + debug: + msg: "INFO: NOT modified, CPU isolation is already configured by someone." + when: + - not is_nsb_isolcpus_role.changed and is_isolcpu.changed + +- name: Add/update isolcpus when ISOL_CPUS is defined and not set at all or set by this role + lineinfile: + path: "{{ grub_file }}" + regexp: "{{ isolcpus_help_string }}" + line: '{{ enable_isolcpu }} {{ isolcpus_help_string }}' + when: + - is_nsb_isolcpus_role.changed or not is_nsb_isolcpus_role.changed and not is_isolcpu.changed + - ISOL_CPUS is defined + +- name: Update grub for bare metal usage + command: "{{ update_grub[ansible_os_family] }}" + when: + - is_nsb_isolcpus_role.changed or not is_nsb_isolcpus_role.changed and not is_isolcpu.changed + - ISOL_CPUS is defined diff --git a/ansible/ubuntu_server_baremetal_deploy_samplevnfs.yml b/ansible/ubuntu_server_baremetal_deploy_samplevnfs.yml index 4f4d7d075..8ca8650ff 100644 --- a/ansible/ubuntu_server_baremetal_deploy_samplevnfs.yml +++ b/ansible/ubuntu_server_baremetal_deploy_samplevnfs.yml @@ -27,6 +27,7 @@ # can't update grub in chroot/docker - enable_hugepages_on_boot - enable_iommu_on_boot + - enable_cpu_isolation_on_boot # needed for collectd plugins - increase_open_file_limits - install_image_dependencies |