Kenneth Bruskiewicz kennethbruskiewicz

Answer by Jim Dennis on Stack Overflow question http://stackoverflow.com/questions/1218390/what-is-your-most-productive-shortcut-with-vim/1220118#1220118

Your problem with Vim is that you don't grok vi.

You mention cutting with yy and complain that you almost never want to cut whole lines. In fact programmers, editing source code, very often want to work on whole lines, ranges of lines and blocks of code. However, yy is only one of many way to yank text into the anonymous copy buffer (or "register" as it's called in vi).

The "Zen" of vi is that you're speaking a language. The initial y is a verb. The statement yy is a simple statement which is, essentially, an abbreviation for 0 y$:

0 go to the beginning of this line. y yank from here (up to where?)

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Setup a Local Only Email Server (Windows Only)

1 - Install hMailServer

Download hMailServer from here: http://www.hmailserver.com/index.php?page=background_download_file&downloadid=207.

In setup, select internal db engine.
Now you have a service called hMailServer and an administration program on the Windows start menu (hMailServer Administrator).

2 - Create a domain

Can NAT traversal be Tor's killer feature?

tl;dr: how about a virtual global flat LAN that maps static IPs to onion addresses?

[We all know the story][1]. Random feature gets unintentionally picked up as the main reason for buying/using a certain product, despite the creator's intention being different or more general. (PC: spreadsheets; Internet: porn; smartphones: messaging.)

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	(ns clog
	(:refer-clojure :exclude [==])
	(:use clojure.core.logic))

	;; ------------------

	(def db
	#{
	[#uuid "9d6280a3-7043-4e7e-9187-ad800743406a" :last-name "Downey"]
	[#uuid "9d6280a3-7043-4e7e-9187-ad800743406a" :street "Hanam"]

	// Utility function for detecting generators.
	let isGenerator = x => {
	return Function.isGenerator &&
	Function.isGenerator.call(x)
	}

	// Data type represents channel into which values
	// can be `put`, or `received` from. Channel is
	// very much like queue where reads and writes are
	// synchronized via continuation passing.

	<?php
	header('Content-type: text/xml');
	/*
	Runs from a directory containing files to provide an
	RSS 2.0 feed that contains the list and modification times for all the
	files.

	*/
	$feedName = "My Audio Feed";
	$feedDesc = "Feed for the my audio files in some server folder";

	#!/usr/bin/env python
	# -- coding: utf-8 --

	"""
	Dirty script to check if any forks in ahead of master and open that branch commitlist
	Warning: Uses alot of api calls
	"""

	import requests
	from requests.auth import HTTPBasicAuth