{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/nginx/refs/heads/main/json-schema/plus-http-api-nginx-slab-zone-schema.json",
  "title": "Shared memory zone with slab allocator",
  "description": "Shared memory zone with slab allocator\n",
  "type": "object",
  "properties": {
    "pages": {
      "type": "object",
      "description": "The number of free and used memory pages.",
      "properties": {
        "used": {
          "type": "integer",
          "description": "The current number of used memory pages.",
          "example": 0
        },
        "free": {
          "type": "integer",
          "description": "The current number of free memory pages.",
          "example": 0
        }
      },
      "example": {}
    },
    "slots": {
      "type": "object",
      "title": "Memory Slots",
      "description": "Status data for memory slots (8, 16, 32, 64, 128, etc.)",
      "additionalProperties": {
        "title": "Memory Slot",
        "type": "object",
        "properties": {
          "used": {
            "type": "integer",
            "description": "The current number of used memory slots.",
            "example": 0
          },
          "free": {
            "type": "integer",
            "description": "The current number of free memory slots.",
            "example": 0
          },
          "reqs": {
            "type": "integer",
            "description": "The total number of attempts to allocate memory of specified size.",
            "example": 0
          },
          "fails": {
            "type": "integer",
            "description": "The number of unsuccessful attempts to allocate memory of specified size.",
            "example": 0
          }
        }
      },
      "example": {}
    }
  },
  "example": {
    "pages": {
      "used": 1143,
      "free": 2928
    },
    "slots": {
      "8": {
        "used": 0,
        "free": 0,
        "reqs": 0,
        "fails": 0
      },
      "16": {
        "used": 0,
        "free": 0,
        "reqs": 0,
        "fails": 0
      },
      "32": {
        "used": 0,
        "free": 0,
        "reqs": 0,
        "fails": 0
      },
      "64": {
        "used": 1,
        "free": 63,
        "reqs": 1,
        "fails": 0
      },
      "128": {
        "used": 0,
        "free": 0,
        "reqs": 0,
        "fails": 0
      },
      "256": {
        "used": 18078,
        "free": 178,
        "reqs": 1635736,
        "fails": 0
      }
    }
  }
}