v8.getHeapSpaceStatistics()

• 返回：<Object[]>

  ¥Returns: <Object[]>

返回有关 V8 堆空间的统计信息，即构成 V8 堆的片段。堆空间的排序和堆空间的可用性都无法保证，因为统计信息是通过 V8 GetHeapSpaceStatistics 函数提供的，并且可能会从一个 V8 版本更改为下一个版本。

¥Returns statistics about the V8 heap spaces, i.e. the segments which make up the V8 heap. Neither the ordering of heap spaces, nor the availability of a heap space can be guaranteed as the statistics are provided via the V8 GetHeapSpaceStatistics function and may change from one V8 version to the next.

返回的值是包含以下属性的对象数组

¥The value returned is an array of objects containing the following properties:

• space_name <string>

• space_size <number>

• space_used_size <number>

• space_available_size <number>

• physical_space_size <number>

[
  {
    "space_name": "new_space",
    "space_size": 2063872,
    "space_used_size": 951112,
    "space_available_size": 80824,
    "physical_space_size": 2063872
  },
  {
    "space_name": "old_space",
    "space_size": 3090560,
    "space_used_size": 2493792,
    "space_available_size": 0,
    "physical_space_size": 3090560
  },
  {
    "space_name": "code_space",
    "space_size": 1260160,
    "space_used_size": 644256,
    "space_available_size": 960,
    "physical_space_size": 1260160
  },
  {
    "space_name": "map_space",
    "space_size": 1094160,
    "space_used_size": 201608,
    "space_available_size": 0,
    "physical_space_size": 1094160
  },
  {
    "space_name": "large_object_space",
    "space_size": 0,
    "space_used_size": 0,
    "space_available_size": 1490980608,
    "physical_space_size": 0
  }
] 拷贝