GODRIVER-2169 Use perf.send instead of json.send

[benjirewis]

GODRIVER-2169

The TIPS team recently switched to a more robust performance gathering tool perf.send. Updates our usage of json.send to perf.send and modifies the output of EvergreenPerfFormat() as described here. (I separately gave the mongodb-signal-processing-bot read access to this repo).

The format of the data used by json.send was:

{
  "data": {
    "results": [
      {
        "name": "insertOne", // test_name
        "results": {
          "16": { // 16 is the thread level, you can't record other args (e.g. compression)
            "ops_per_sec": 10000, // metric, legacy tooling doesn't support anything other than "ops_per_sec"
          },
          "8": {
            "ops_per_sec": 3000,
          }
        },
      },
    ],
  },
}

The format of the data now used by perf.send is:

[
  {
    "info": {
      "test_name": "insertOne",
      "args": {
        "threads": 16,
        "compression": 1,
        ...etc
      }
    },
    "metrics": [
      {
        "name": "ops_per_sec",
        "value": 10000
      },
      {
        "name": "average_latency",
        "value": 198234
      },
      ...etc
    ]
  },
  {
    "info": {
      "test_name": "insertOne",
      "args": {
        "threads": 8,
        "compression": 0,
        ...etc
      }
    },
    "metrics": [
      {
        "name": "ops_per_sec",
        "value": 3000
      },
      {
        "name": "average_latency",
        "value": 298234
      },
      ...etc
    ]
  },
  ...etc
]

[kevinAlbs]

Changes look good! Is there a successful run of a perf task with the new changes? I have reconfigured the attached patch build to include the perf task: https://spruce.mongodb.com/task/mongo_go_driver_perf_perf_patch_8a397a401000e6ba266e8a18beabc8af4da4a773_616f31e63e8e8608fdd848e8_21_10_19_21_00_24/logs?execution=0

[benjirewis]

Looks like the perf task succeeded. I'm not sure that's a perfect indicator that we have the correct format, though.

[kevinAlbs]

LGTM! The table on the perf task looks good.