Function testRateLimitMemoryUsage

benchmarks/rate-limiting.js:462–531

* Memory usage test for rate limiting

()

 * Memory usage test for rate limiting
 */
function testRateLimitMemoryUsage () {
	console.log("\n📊 Rate Limiting Memory Usage");
	console.log("-".repeat(40));

	const iterations = 10000;
	const rateStore = new Map();

	// Test memory usage with increasing number of clients
	const memoryStart = process.memoryUsage();

	for (let i = 0; i < iterations; i++) {
		const clientId = `client-${i}`;
		const currentTime = Math.floor(Date.now() / 1000);

		rateStore.set(clientId, {
			limit: 100,
			remaining: Math.floor(Math.random() * 100),
			reset: currentTime + 900
		});

		// Simulate some rate checks
		if (i % 100 === 0) {
			for (let j = 0; j < 10; j++) {
				const existingClientId = `client-${Math.floor(Math.random() * i)}`;
				const state = rateStore.get(existingClientId);
				if (state && state.remaining > 0) {
					state.remaining--;
				}
			}
		}
	}

	const memoryEnd = process.memoryUsage();

	console.log(`Rate Store (${iterations} clients):`);
	const heapDiff = memoryEnd.heapUsed - memoryStart.heapUsed;
	console.log(`  Heap Used: ${heapDiff >= 0 ? "+" : ""}${formatFilesize(heapDiff)}`);
	console.log(`  Memory per client: ${formatFilesize(heapDiff >= 0 ? heapDiff / iterations : 0)}`);
	console.log(`  Total store size: ${rateStore.size} entries`);

	// Test cleanup impact
	const cleanupStart = process.memoryUsage();
	const currentTime = Math.floor(Date.now() / 1000);

	// Mark half as expired
	let expiredCount = 0;
	for (const [key, value] of rateStore.entries()) { // eslint-disable-line no-unused-vars
		if (expiredCount < iterations / 2) {
			value.reset = currentTime - 1;
			expiredCount++;
		}
	}

	// Cleanup expired entries
	const toDelete = [];
	for (const [key, value] of rateStore.entries()) {
		if (currentTime >= value.reset) {
			toDelete.push(key);