rally-openstack/samples/tasks/scenarios/nova/list-agents.json

{
  "NovaAgents.list_agents": [
    {
      "runner": {
        "type": "constant",
        "concurrency": 2,
        "times": 10
      },
      "sla": {
        "failure_rate": {
          "max": 0
        }
      }
    }
  ]
}