node-hci/test/eventual-test/benchmark.js

const Eventual = require('../../lib/eventual');
const Benchmark = require('../../lib/utils/benchmark');

var events = new Eventual();


function ntokb(n) {
	var suffix = ["B","KB","MB","GB"];
	var si = 0;
	while( n> 1024 && si< suffix.length) {
		n/=1024;
		si++;
	}
	return n.toFixed(2) + " " +suffix[si];
}



var test = new Set();

test.add("hello:world");

if(test.has("hello:world")) {
	console.log("True is not reference");
};



function makeid()
{
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    for( var i=0; i < 5; i++ )
        text += possible.charAt(Math.floor(Math.random() * possible.length));

    return text;
}



var g = events.createContext();
console.log("Context MODEL: " + g.version);

function createContexts() {
	var ncount = 1000000;
	var r= [];
	console.log("Adding",ncount,"contexts");
	for(var i = 0;i<ncount;i++) {
		r.push(events.createContext());
	}
	return r;
}

function stressEvents() {
	var ctx = events.createContext();
	var ctx2 = events.createContext();
	
	// 1 million
	var ncount = 100;
	console.log("Adding",ncount * ncount*ncount,"events in 2 contexts");
	for(var i = 0;i<ncount;i++) {
		// Create random contexts too
		var evtName = makeid();
		for(var j = 0;j<ncount;j++) {
			var n2 = evtName + ":" + makeid();
			for(var k = 0;k<ncount;k++) {
				var n3 = n2+":"+k;
				ctx.on(evtName,(a,b,c,evt) => {
						console.log("evt: " , evt);
						console.log("Args: " + a,b,c);	
				});
			}
		}
	}
	// Second context
	console.log("Adding events to second context");
	for(var i = 0;i<ncount;i++) {
		ctx2.on('test:test',(a,b,c) => { });
	};
	return [ctx,ctx2];
}

function pinger() {
	var pingbm = new Benchmark();
	var pctx = events.createContext();
	
	pctx.on('c1:ping',(e) => {
		console.log("Pong: " + pingbm.mark(), "Contexts:",events._events.ctx.size,"Memory:",ntokb(process.memoryUsage().heapTotal));
	})
	setInterval(() => {
		pingbm.start();
		pctx.emit('c1:ping');
	},500);
}


function sequential() {
	// Testing done
	var cc = events.createContext();	
	var cc2 = events.createContext();
	cc.on('hello',(e) => {
		e.wait();
		console.log("CC1 Hello will wait 1s");
		setTimeout(() => {
			e.done()
		},1000);
	});
	cc2.on('hello',(e) => {
		e.wait();
		console.log("cc2 Hello");
		setTimeout(() => {
			e.done();
		},2000);
	});

console.log("Broadcasting hello");
	cc.emit('hello').done(() => {
		console.log("Hello called");
	});
}


pinger();
console.log("Turning on stress in 10s");

var contextList;
setTimeout(() => {
	console.log("Stressing events");
	contextList = stressEvents();
},10000);
setTimeout(() => {
	console.log("Clearing events context");
	contextList.forEach(c => c.destroy())
	contextList = null;
},20000);

setTimeout(() =>  { 
	contextList = createContexts(); 
},30000);
setTimeout(() => stressEvents(),40000);