Ramesh Babu Y hotcoder

Moved to git-repository: https://github.com/denji/awesome-http-benchmark

Tools

Located in alphabetical order (not prefer)

ab – slow and single threaded, written in C
apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)
bombardier – Fast crossplatform HTTP benchmarking tool, written in Go (golang)

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	[
	{
	"name": "WORLD",
	"population": 6916183000
	},
	{
	"name": "More developed regions",
	"population": 1240935000
	},
	{

	<%

	Map<String,String> s = new HashMap<String,String>();
	Cookie cookie = null;
	Cookie[] cookies = null;
	// Get an array of Cookies associated with this domain
	cookies = request.getCookies();
	if (cookies != null) {
	out.println("<h2> Found Cookies Name and Value</h2>");
	for (int i = 0; i < cookies.length; i++) {

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<title>Bootstrap 3, from LayoutIt!</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta name="description" content="">
	<meta name="author" content="">

	<!--link rel="stylesheet/less" href="less/bootstrap.less" type="text/css" /-->

	// Class to represent a row in the seat reservations grid
	function SeatReservation(name, initialMeal) {
	var self = this;
	self.name = name;
	self.meal = ko.observable(initialMeal);

	self.namesLists = ko.observableArray([{
	Name: "Vegetarian Raw Meal"
	}, {
	Name: "Vegetarian Vegan Meal"

	<!DOCTYPE html>
	<html>
	<head>
	<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.js"></script>
	<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/knockout/3.1.0/knockout-min.js"></script>
	<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/knockout.mapping/2.4.1/knockout.mapping.js"></script>
	<script type="text/javascript" src="seatreserv.js"></script>
	</head>
	<body>
	<table>

	package com.paddypower.financials.market.management.rest.logging;

	import java.io.BufferedReader;
	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;

	import javax.servlet.Filter;
	import javax.servlet.FilterChain;

	Below are the Big O performance of common functions of different Java Collections.


	List \| Add \| Remove \| Get \| Contains \| Next \| Data Structure
	---------------------\|------\|--------\|------\|----------\|------\|---------------
	ArrayList \| O(1) \| O(n) \| O(1) \| O(n) \| O(1) \| Array
	LinkedList \| O(1) \| O(1) \| O(n) \| O(n) \| O(1) \| Linked List
	CopyOnWriteArrayList \| O(n) \| O(n) \| O(1) \| O(n) \| O(1) \| Array