Satish Bhat bhattisatish

Context

This tweet explains it all.

I have a huge pile of papers on my computer waiting to be read. Often I read parts of it immediately after I see the paper, but I forget about it until someone points on another article, how awesome that paper is. I then remember to read it more carefully.

One way to fix it is to work with like minded people and have serious (non-hand wavy) discussion around the paper.

The list below will grow. My hard disk has more papers than I can count. I have carefully chosen a list of very readable papers in the list below. Special thanks for the authors for publishing their great ideas.

chartFactory

/affini-tech/ChartFactory

Based on D3.JS and Dimple, ChartFactory provide the ability to build quickly D3.JS charts without coding any lines of javascript. Just define your dashboard in a JSON and voila !

charts: [
        {id:'chart1',
         width:800,height:250,

xAxis:{type:'Category',field: "Month",orderRule:'Date'},

Turning PostgreSQL into a queue serving 10,000 jobs per second

RDBMS-based job queues have been criticized recently for being unable to handle heavy loads. And they deserve it, to some extent, because the queries used to safely lock a job have been pretty hairy. SELECT FOR UPDATE followed by an UPDATE works fine at first, but then you add more workers, and each is trying to SELECT FOR UPDATE the same row (and maybe throwing NOWAIT in there, then catching the errors and retrying), and things slow down.

On top of that, they have to actually update the row to mark it as locked, so the rest of your workers are sitting there waiting while one of them propagates its lock to disk (and the disks of however many servers you're replicating to). QueueClassic got some mileage out of the novel idea of randomly picking a row near the front of the queue to lock, but I can't still seem to get more than an an extra few hundred jobs per second out of it under heavy load.

So, many developers have started going straight t

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!

\

	# coding=UTF-8
	from __future__ import division
	import nltk
	from collections import Counter

	# This is a simple tool for adding automatic hashtags into an article title
	# Created by Shlomi Babluki
	# Sep, 2013

	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
	<html>

	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>Single-Column Responsive Email Template</title>

	<style>
	@media only screen and (min-device-width: 541px) {
	.content {

	#!/bin/bash

	# Usage:
	#
	# sudo ./restore-file-from-package.sh <filepath>
	#
	# Restore a file from the package that provides it.
	#
	# Source: http://askubuntu.com/a/67028/30482

	#!/bin/bash

	# Clones as usual but creates local tracking branches for all remote branches.
	# To use, copy this file into the same directory your git binaries are (git, git-flow, git-subtree, etc)

	clone_output=$((git clone "$@" ) 2>&1)
	retval=$?
	echo $clone_output
	if [[ $retval != 0 ]] ; then
	exit 1