getmemoryinfo RPC Method

Parameters

mode

string

It determines what kind of information is returned. "stats" returns general statistics about memory usage in the daemon and "mallocinfo" returns an XML string describing low-level heap state (only available if compiled with glibc 2.10+)

Returns

locked

Information about locked memory manager

used

Number of bytes used

free

Number of bytes available in current arenas

total

Total number of bytes managed

locked

Amount of bytes that succeeded locking. If this number is smaller than total, locking pages failed at some point and key data could be swapped to disk

chunks_used

Number allocated chunks

chunks_free

Number of unused chunks

error

The error message, if any

Request

curl https://docs-demo.btc.quiknode.pro/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"id": 1, "jsonrpc": "2.0", "method": "getmemoryinfo" }'

var myHeaders = new Headers();
myHeaders.append("Content-Type", "application/json");

var raw = JSON.stringify({
  "id": 1,
  "jsonrpc": "2.0",
  "method": "getmemoryinfo"
});

var requestOptions = {
  method: 'POST',
  headers: myHeaders,
  body: raw,
  redirect: 'follow'
};

fetch("https://docs-demo.btc.quiknode.pro/", requestOptions)
  .then(response => response.text())
  .then(result => console.log(result))
  .catch(error => console.log('error', error));

import requests
import json

url = "https://docs-demo.btc.quiknode.pro/"

payload = json.dumps({
  "id": 1,
  "jsonrpc": "2.0",
  "method": "getmemoryinfo"
})
headers = {
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

require "uri"
require "json"
require "net/http"

url = URI("https://docs-demo.btc.quiknode.pro/")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "id": 1,
  "jsonrpc": "2.0",
  "method": "getmemoryinfo"
})

response = https.request(request)
puts response.read_body

Response

{
  "result": {
    "locked": {
      "used": 1872,
      "free": 260272,
      "total": 262144,
      "locked": 262144,
      "chunks_used": 52,
      "chunks_free": 7
    }
  },
  "error": null,
  "id": null
}

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