db.sbe_perf_latest.aggregate([{ $match: { tags: {$ne: "ignore"}, test: /Find_/} }, {$project: {signed_percent_change_stable: 1, test: 1, measurement: 1, _id: 0}}, {$sort: {test: 1}}, {$group: {_id: "$measurement", tests: {$push: {test: "$test", signed_percent_change_stable: "$signed_percent_change_stable"}}}}]).pretty()
[
  {
    _id: 'Latency95thPercentile',
    tests: [
      {
        test: 'Find_1.findOne',
        signed_percent_change_stable: -8.791239544397953
      },
      {
        test: 'Find_128.findOne',
        signed_percent_change_stable: -22.051287254041867
      },
      {
        test: 'Find_16.findOne',
        signed_percent_change_stable: -21.794483091011813
      },
      {
        test: 'Find_250.findOne',
        signed_percent_change_stable: -68.27828240953801
      },
      {
        test: 'Find_32.findOne',
        signed_percent_change_stable: -11.864408014227877
      },
      {
        test: 'Find_64.findOne',
        signed_percent_change_stable: -18.153827378687865
      }
    ]
  },
  {
    _id: 'OperationThroughput',
    tests: [
      {
        test: 'Find_1.findOne',
        signed_percent_change_stable: -6.339420121212015
      },
      {
        test: 'Find_128.findOne',
        signed_percent_change_stable: -10.278890759781206
      },
      {
        test: 'Find_16.findOne',
        signed_percent_change_stable: -7.281482690068543
      },
      {
        test: 'Find_250.findOne',
        signed_percent_change_stable: -0.13229833676230385
      },
      {
        test: 'Find_32.findOne',
        signed_percent_change_stable: -8.215011971516063
      },
      {
        test: 'Find_64.findOne',
        signed_percent_change_stable: -8.781758998285156
      }
    ]
  },
  {
    _id: 'Latency50thPercentile',
    tests: [
      {
        test: 'Find_1.findOne',
        signed_percent_change_stable: -4.9922916038251515
      },
      {
        test: 'Find_128.findOne',
        signed_percent_change_stable: -19.54523436130758
      },
      {
        test: 'Find_16.findOne',
        signed_percent_change_stable: -6.120788418922601
      },
      {
        test: 'Find_250.findOne',
        signed_percent_change_stable: -6.185459775019268
      },
      {
        test: 'Find_32.findOne',
        signed_percent_change_stable: -6.397085903131924
      },
      {
        test: 'Find_64.findOne',
        signed_percent_change_stable: -6.268861567796563
      }
    ]
  }
]