sideb0ard

Latency Comparison Numbers
--------------------------
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

sideb0ard

man() {
	env \
		LESS_TERMCAP_mb=$(printf "\e[1;31m") \
		LESS_TERMCAP_md=$(printf "\e[1;31m") \
		LESS_TERMCAP_me=$(printf "\e[0m") \
		LESS_TERMCAP_se=$(printf "\e[0m") \
		LESS_TERMCAP_so=$(printf "\e[1;44;33m") \
		LESS_TERMCAP_ue=$(printf "\e[0m") \
		LESS_TERMCAP_us=$(printf "\e[1;32m") \
			man "$@"

sideb0ard

package com.example.testSingleton;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;

public class ActivityA extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {

sideb0ard

#cloud-config
hostname: <%= shortname %>

ssh_authorized_keys:
  - ssh-rsa xxxx rsa-key-20120604

coreos:
  units:
    - name: settimezone.service
      command: start

sideb0ard

REGISTER file:/home/hadoop/lib/pig/piggybank.jar;                                       

DEFINE EXTRACT org.apache.pig.piggybank.evaluation.string.EXTRACT();                    
DEFINE CustomFormatToISO org.apache.pig.piggybank.evaluation.datetime.convert.CustomFormatToISO();
DEFINE ISOToUnix org.apache.pig.piggybank.evaluation.datetime.convert.ISOToUnix();
DEFINE DATE_TIME org.apache.pig.piggybank.evaluation.datetime.DATE_TIME();
DEFINE FORMAT_DT org.apache.pig.piggybank.evaluation.datetime.FORMAT_DT();
DEFINE FORMAT org.apache.pig.piggybank.evaluation.string.FORMAT();

RAW_LOGS = LOAD '$INPUT' as (line:chararray);

sideb0ard

// merge calls itself recursively
def merge(l1: List[Int], l2: List[Int]): List[Int] = {
  // termination cases
  (l1, l2) match {
    case (Nil, Nil) => Nil
    case (x, Nil) => x
    case (Nil, y) => y
    case (_, _) => l1.head.compare(l2.head) match {
      case -1 => l1.head :: merge(l1.tail, l2)
      case _  => l2.head :: merge(l2.tail, l1)