通过指定constant arrival rate executor，使用scenarios以不同的请求速率调用不同的测试函数。
您必须手动预先计算每个端点的比率，但是您可以轻松地定义一个函数来根据总的基本比率计算正确的比率。

const TOTAL_RPS = 100;
function rps(percentage) {
  return TOTAL_RPS * percentage;
}

export const options = {
  scenarios: {
    busy: {
      exec: 'busy_endpoint',
      executor: 'constant-arrival-rate',
      duration: '10m',
      preAllocatedVUs: 50,
      rate: rate(0.9) // 90%
    },
    lazy: {
      exec: 'less_busy_endpoint',
      executor: 'constant-arrival-rate',
      duration: '10m',
      preAllocatedVUs: 5,
      rate: rate(0.1), // // 10%
    }
  }
};

export function busy_endpoint() {
  // will be called 90 times per second (90% of 100 rps)
  http.get('http://example.com');
}

export function less_busy_endpoint() {
  // will be called 10 times per second (10% of 100 rps)
  http.get('http://example.com');
}