Dart ProcessInfo

last modified October 18, 2026

The ProcessInfo class in Dart provides information about the current process. It's part of the dart:io library.

ProcessInfo is a utility class that exposes process-related metrics. It provides static getters to access information about the running Dart process.

Memory Usage Statistics

This example demonstrates how to check memory usage of the current process.

import 'dart:io';

void main() {
  var memory = ProcessInfo.currentRss;
  print('Resident Set Size: ${memory ~/ 1024} KB');

  var maxRss = ProcessInfo.maxRss;
  print('Maximum RSS: ${maxRss ~/ 1024} KB');
}

We use currentRss for current memory usage.

maxRss returns the high-watermark in bytes for the resident set size of memory for the process. Note that the meaning of this field is platform dependent. For example, some memory accounted for here may be shared with other processes, or if the same page is mapped into a process's address space, it may be counted twice

$ dart main.dart
Resident Set Size: 24576 KB
Maximum RSS: 25600 KB

The reported memory values depend on the platform, the Dart VM, and the program; the numbers above are only an example.

Source

Dart ProcessInfo Documentation

This tutorial covered Dart's ProcessInfo class.

Author

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