Overload

Step/Staircase QPS

Increase or decrease connection pool size in steps.

Step

Example

extern crate overload_http;
extern crate serde_json;
use overload_http::RateSpecEnum;
let req = r###"
{
  "Steps" : {
    "steps": [
      {
        "start": 0,
        "end": 5,
        "rate": 1
      },
      {
        "start": 6,
        "end": 8,
        "rate": 4
      },
      {
        "start": 9,
        "end": 10,
        "rate": 7
      }
    ]
  }
}
"###;
let result = serde_json::from_str::<RateSpecEnum>(req);
assert!(result.is_ok());

If the test run for 15 seconds, from 0 to 5th seconds, 1 connection will be used, from 6th to 8th seconds, it'll be 4, from 9 to 10th and 11th to 15th seconds, 7 connections will be used.