interface MemoryUsage
Usage in Deno
```typescript import { type MemoryUsage } from "node:node__process.d.ts"; ```
rss: number
Resident Set Size, is the amount of space occupied in the main memory device (that is a subset of the total allocated memory) for the
process, including all C++ and JavaScript objects and code.
heapTotal: number
Refers to V8's memory usage.
heapUsed: number
Refers to V8's memory usage.
external: number
arrayBuffers: number
Refers to memory allocated for `ArrayBuffer`s and `SharedArrayBuffer`s, including all Node.js Buffers. This is also included
in the external value. When Node.js is used as an embedded library, this value may be `0` because allocations for `ArrayBuffer`s
may not be tracked in that case.