A snippet to leak as much of the available virtual memory in Swift as possible

LeakMemory.swift

// Modified from: https://stackoverflow.com/a/45882589
DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(3)) {
	var freeMem = Int.max
	let reserved = 605696
	let chunks = 12000
	repeat {
		freeMem = os_proc_available_memory()
		let toAlloc = freeMem
		let mallocSize = toAlloc / chunks

		var p: [UnsafeMutableRawPointer] = []
		var allocatedMB = 0

		let buf = malloc(mallocSize)
		assert(buf != nil)

		p.append(buf!)
		memset(p[allocatedMB], 0, mallocSize)
		allocatedMB += 1
	} while (freeMem > reserved)

	let remainingMemory = os_proc_available_memory()
	print("Available memory after alloc: \(remainingMemory)")
}