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import { config, plot } from "https://deno.land/x/chart/mod.ts";import { parseFeed } from "./mod.ts";import { isValidURL } from "./src/util.ts";
const arg0 = Deno.args[0];let xml: string;if (isValidURL(arg0)) {  const response = await fetch(arg0);  xml = await response.text();} else {  xml = await Deno.readTextFile(`./samples/${(arg0 || "rss2")}.xml`);}
const iterations = 10000;const snapshotCount = 120;
const heapUsageArr = new Array(snapshotCount);const heapTopArr = new Array(snapshotCount);const rssArr = new Array(snapshotCount);
const snapshotPos = Math.floor(iterations / snapshotCount);console.log(`Running ${iterations} iterations, please wait...`);const initialDenoProcessAndV8MemoryUsage = Deno.memoryUsage();
for (let index = 0; index < iterations; index++) {  await parseFeed(xml);
  if (index % snapshotPos === 0) {    const pos = index / snapshotPos;    if (pos < snapshotCount) {      heapUsageArr[pos] = (Deno.memoryUsage().heapUsed -        initialDenoProcessAndV8MemoryUsage.heapUsed) / 1024 / 1024;      heapTopArr[pos] = (Deno.memoryUsage().heapTotal -        initialDenoProcessAndV8MemoryUsage.heapTotal) / 1024 / 1024;      rssArr[pos] =        (Deno.memoryUsage().rss - initialDenoProcessAndV8MemoryUsage.rss) /        1024 / 1024;    }  }}
console.log(`\nMemory usage (Heap: Blue, Heap Top: Green, RSS: Red)`);console.log(  plot(    [heapUsageArr, heapTopArr, rssArr],    { colors: ["blue", "green", "red"], height: 30 } as config,  ),);