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v8: support gc profile

Rodrigo Muino Tomonari requested to merge github/fork/theanarkh/support_gc_profile into main

support gc profile. the content is as follows.

{
  "version": 1,
  "startTime": 1674059033862,
  "statistics": [
    {
      "gcType": "Scavenge",
      "beforeGC": {
        "heapStatistics": {
          "totalHeapSize": 5005312,
          "totalHeapSizeExecutable": 524288,
          "totalPhysicalSize": 5226496,
          "totalAvailableSize": 4341325216,
          "totalGlobalHandlesSize": 8192,
          "usedGlobalHandlesSize": 2112,
          "usedHeapSize": 4883840,
          "heapSizeLimit": 4345298944,
          "mallocedMemory": 254128,
          "externalMemory": 225138,
          "peakMallocedMemory": 181760
        },
        "heapSpaceStatistics": [
          {
            "spaceName": "read_only_space",
            "spaceSize": 0,
            "spaceUsedSize": 0,
            "spaceAvailableSize": 0,
            "physicalSpaceSize": 0
          }
        ]
      },
      "cost": 1574.14,
      "afterGC": {
        "heapStatistics": {
          "totalHeapSize": 6053888,
          "totalHeapSizeExecutable": 524288,
          "totalPhysicalSize": 5500928,
          "totalAvailableSize": 4341101384,
          "totalGlobalHandlesSize": 8192,
          "usedGlobalHandlesSize": 2112,
          "usedHeapSize": 4059096,
          "heapSizeLimit": 4345298944,
          "mallocedMemory": 254128,
          "externalMemory": 225138,
          "peakMallocedMemory": 181760
        },
        "heapSpaceStatistics": [
          {
            "spaceName": "read_only_space",
            "spaceSize": 0,
            "spaceUsedSize": 0,
            "spaceAvailableSize": 0,
            "physicalSpaceSize": 0
          }
        ]
      }
    }
  ],
  "endtTime": 1674059036865
}
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

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