fio_auto.yaml

- name: Set up and run fio jobs configured with settings from a script
  # hosts: vm120,vm122,vm125,vm126,vm127
  hosts: vm121
  vars:
    fio_target_directory: /var/lib/autobench
    schedtool: False
    workload_id: 1
    workload_size: small 
    delete_fio_read_files: 1
    disk_kernel_rotational: 0
    nr_hw_queues: 1
    settings: 19
    disk_kernel_io_scheduler: 'mq-deadline'
    disk_kernel_bfq_low_latency: null
    disk_kernel_mqdeadline_fifo_batch: 16
    disk_kernel_mqdeadline_writes_starved: 2
  tasks:
  - name: Prepare the device and VM, calculate the desired settings, run fio, and load output to db
    block:
    - name: Set nr_hw_queues
      include_role:
        name: data_disk
        tasks_from: nr_hw_queues
      when: nr_hw_queues is defined

    - name: Reset the device for nr_hw_queues value to take effect
      include_role:
        name: data_disk
        tasks_from: reset
      when: nr_hw_queues is defined

    - name: Install fio
      become: yes
      apt: name=fio

    - name: Calculate device settings on the remote
      script: calc_device_settings19.py
      args:
        executable: python3
        chdir: "{{ fio_target_directory }}"
      register: output

    - set_fact:
        calculated_settings: "{{ (output.stdout | from_json) }}"

    - debug:
        msg: "{{ calculated_settings }}"

    - set_fact:
        disk_kernel_max_sectors_kb: "{{ calculated_settings.max_sectors_kb }}"
      when: calculated_settings.max_sectors_kb is defined

    - set_fact:
        disk_kernel_read_ahead_kb: "{{ calculated_settings.read_ahead_kb }}"
      when: calculated_settings.read_ahead_kb is defined

    - set_fact:
        disk_kernel_queue_depth: "{{ calculated_settings.queue_depth }}"
      when: calculated_settings.queue_depth is defined

    - set_fact:
        disk_kernel_nr_requests: "{{ calculated_settings.nr_requests }}"
      when: calculated_settings.nr_requests is defined

    - set_fact:
        disk_kernel_io_scheduler: "{{ disk_kernel_io_scheduler }}"

    - set_fact:
        disk_kernel_mqdeadline_fifo_batch: "{{ disk_kernel_mqdeadline_fifo_batch }}"
      when: disk_kernel_mqdeadline_fifo_batch is defined and disk_kernel_io_scheduler == 'mq-deadline'

    - set_fact:
        disk_kernel_mqdeadline_writes_starved: "{{ disk_kernel_mqdeadline_writes_starved }}"
      when: disk_kernel_mqdeadline_writes_starved is defined and disk_kernel_io_scheduler == 'mq-deadline'

    - set_fact:
        disk_kernel_bfq_low_latency: "{{ disk_kernel_bfq_low_latency }}"
      when: disk_kernel_bfq_low_latency is defined and disk_kernel_io_scheduler == 'bfq'

    - set_fact:
        disk_kernel_wbt_lat_usec: "{{ calculated_settings.wbt_lat_usec }}"
      when: calculated_settings.wbt_lat_usec is defined

    - set_fact:
        disk_kernel_rotational: "{{ disk_kernel_rotational }}"

    - name: Trim the filesystem
      include_role:
        name: data_disk
        tasks_from: trim

    - name: Set kernel device parameters
      include_role:
        name: disk_kernel

    - name: Run fio jobs
      vars:
        fio_result_file: "{{ inventory_hostname }}-{{ settings }}.json"
      include_role:
        name: fio

    always:
    - name: Ensure nr_hw_queues is reset to 0
      vars:
        nr_hw_queues: 0
      include_role:
        name: data_disk
        tasks_from: nr_hw_queues

    - name: Reset the device for nr_hw_queues value to take effect
      include_role:
        name: data_disk
        tasks_from: reset

# vim: set ft=yaml.ansible: