Steven Cook eldritchideen

HTTP Server Micro-Benchmarks

Here are the results of testing returning a small text string from a HTTP request implemented in various languages all, tested under the same conditions. The command used to test the server implementations was:

wrk -c 40 -d 60s -t 2 --latency http://localhost:3000

Python3

This test used the new async support in python 3.5.

Golang Job Queue

A running example of the code from:

Step 1

Small refactorings made to original code:

If you are seeing Mongo soft rlimits warnings in your logs, or a WARNING: soft rlimits too low. Number of files is 256, should be at least 1000 when you login to mongo shell via mongo from the commandline, or any mysterious/unexplained mongo connection errors... follow this how-to exactly and it will resolve the issue for you.

(Source of this how to found at basho/basho_docs#1402)

First file: sudo vi /Library/LaunchDaemons/limit.maxfiles.plist

...containing:

	"**************************************************************************
	* Allowable characters: *
	* - a-z *
	* - A-Z *
	* - 0-9 *
	* - .+/\~<>@%\|&?
	* - blank, tab, cr, ff, lf *
	* *
	* Variables: *
	* - variables must be declared before use *

	package main

	import (
	"html/template"
	"log"
	"net/http"
	"net/url"
	"time"
	)

	package main

	import (
	"fmt"
	"math"
	"math/rand"

	"github.com/gonum/matrix/mat64"
	)

	package main

	import (
	"fmt"
	"github.com/gorilla/mux"
	"github.com/gorilla/securecookie"
	"net/http"
	)

	// cookie handling

	def take_while(fn, coll):
	"""Yield values from coll until fn is False"""
	for e in coll:
	if fn(e):
	yield e
	else:
	return

	def partition(n, coll, step=None):
	return take_while(lambda e: len(e) == n,

	const request = require('request'),
	cheerio = require('cheerio'),
	fs = require('fs');

	request('http://www.marketindex.com.au/all-ordinaries', function (error, response, body) {
	if (!error && response.statusCode === 200) {
	let stocks = [];
	let $ = cheerio.load(body);
	$('#asx_sp_table > tbody > tr > td:nth-child(2)').each((i,elem) => {
	stocks[i] = elem.children[0].data;

	function Vector(x,y) {
	this.x = x
	this.y = y
	}
	Vector.prototype.plus = function(other) {
	return new Vector(this.x + other.x, this.y + other.y)
	};
	Vector.prototype.minus = function(other) {
	return new Vector(this.x - other.x, this.y - other.y)
	};