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Diffstat (limited to 'fdio.infra.ansible/roles/performance_tuning/tasks/main.yaml')
| -rw-r--r-- | fdio.infra.ansible/roles/performance_tuning/tasks/main.yaml | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/fdio.infra.ansible/roles/performance_tuning/tasks/main.yaml b/fdio.infra.ansible/roles/performance_tuning/tasks/main.yaml new file mode 100644 index 0000000000..e9cdd0d819 --- /dev/null +++ b/fdio.infra.ansible/roles/performance_tuning/tasks/main.yaml @@ -0,0 +1,189 @@ +--- +# file: roles/performance_tuning/tasks/main.yaml + +- name: Inst - Update Package Cache (APT) + apt: + update_cache: yes + cache_valid_time: 3600 + when: + - ansible_distribution|lower == 'ubuntu' + tags: + - perf-inst-prerequisites + +- name: Inst - Machine Prerequisites + package: + name: "{{ packages | flatten(levels=1) }}" + state: latest + tags: + - perf-inst-prerequisites + +- name: Conf - Turbo Boost + import_tasks: turbo_boost.yaml + when: > + cpu_microarchitecture == "skylake" or + cpu_microarchitecture == "cascadelake" + tags: + - perf-conf-turbo-boost + +- name: Conf - Adjust nr_hugepages + # change the minimum size of the hugepage pool. + # 2G VPP, 4GB per VNF/CNF, 2G reserve + sysctl: + name: "vm.nr_hugepages" + value: "{{ sysctl.vm.nr_hugepages }}" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust max_map_count + # this file contains the maximum number of memory map areas a process + # may have. memory map areas are used as a side-effect of calling + # malloc, directly by mmap and mprotect, and also when loading shared + # libraries. + # + # while most applications need less than a thousand maps, certain + # programs, particularly malloc debuggers, may consume lots of them, + # e.g., up to one or two maps per allocation. + # must be greater than or equal to (2 * vm.nr_hugepages). + sysctl: + name: "vm.max_map_count" + value: "{{ sysctl.vm.nr_hugepages * 4 }}" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust hugetlb_shm_group + # hugetlb_shm_group contains group id that is allowed to create sysv + # shared memory segment using hugetlb page. + sysctl: + name: "vm.hugetlb_shm_group" + value: "1000" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust swappiness + # this control is used to define how aggressive the kernel will swap + # memory pages. higher values will increase agressiveness, lower values + # decrease the amount of swap. a value of 0 instructs the kernel not to + # initiate swap until the amount of free and file-backed pages is less + # than the high water mark in a zone. + sysctl: + name: "vm.swappiness" + value: "0" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust shmmax + # shared memory max must be greator or equal to the total size of hugepages. + # for 2mb pages, totalhugepagesize = vm.nr_hugepages * 2 * 1024 * 1024 + # if the existing kernel.shmmax setting (cat /sys/proc/kernel/shmmax) + # is greater than the calculated totalhugepagesize then set this parameter + # to current shmmax value. + sysctl: + name: "kernel.shmmax" + value: "{{ sysctl.vm.nr_hugepages * 2 * 1024 * 1024 }}" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust watchdog_cpumask + # this value can be used to control on which cpus the watchdog may run. + # the default cpumask is all possible cores, but if no_hz_full is + # enabled in the kernel config, and cores are specified with the + # nohz_full= boot argument, those cores are excluded by default. + # offline cores can be included in this mask, and if the core is later + # brought online, the watchdog will be started based on the mask value. + # + # typically this value would only be touched in the nohz_full case + # to re-enable cores that by default were not running the watchdog, + # if a kernel lockup was suspected on those cores. + sysctl: + name: "kernel.watchdog_cpumask" + value: "{{ sysctl.kernel.watchdog_cpumask }}" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Adjust randomize_va_space + # this option can be used to select the type of process address + # space randomization that is used in the system, for architectures + # that support this feature. + # 0 - turn the process address space randomization off. this is the + # default for architectures that do not support this feature anyways, + # and kernels that are booted with the "norandmaps" parameter. + sysctl: + name: "kernel.randomize_va_space" + value: "0" + state: "present" + sysctl_file: "/etc/sysctl.d/90-csit.conf" + reload: "yes" + tags: + - perf-conf-sysctl + +- name: Conf - Cpufrequtils + copy: + src: "files/cpufrequtils" + dest: "/etc/default/cpufrequtils" + owner: "root" + group: "root" + mode: 0644 + tags: + - perf-conf-cpufrequtils + +- name: Conf - Irqbalance + template: + src: "files/irqbalance" + dest: "/etc/default/irqbalance" + owner: "root" + group: "root" + mode: 0644 + tags: + - perf-conf-irqbalance + +- name: Conf - Set Ondemand Service To Disable + service: + name: "ondemand" + enabled: "no" + tags: + - perf-conf-ondemand + +- name: Conf - Kernel Parameters + lineinfile: + path: "/etc/default/grub" + state: "present" + regexp: "^GRUB_CMDLINE_LINUX=" + line: "GRUB_CMDLINE_LINUX=\"{% for key, value in grub.items() %}{% if value is sameas true %}{{key}} {% else %}{{key}}={{value}} {% endif %}{% endfor %}\"" + notify: + - "Update GRUB" + tags: + - perf-conf-grub + +- meta: flush_handlers + +- name: Conf - Load Kernel Modules By Default + lineinfile: + path: "/etc/modules" + state: "present" + line: "{{ item }}" + with_items: + - "vfio-pci" + notify: + - "Reboot Server" + tags: + - perf-conf-load-kernel-modules + +- meta: flush_handlers
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