priithaamer

task :ask_production_confirmation do
  set(:confirmed) do
    puts <<-WARN

    ========================================================================

      WARNING: You're about to perform actions on production server(s)
      Please confirm that all your intentions are kind and friendly

    ========================================================================

hotchpotch

# # your config.ru
# require 'unicorn_killer'
# use UnicornKiller::MaxRequests, 1000
# use UnicornKiller::Oom, 400 * 1024

module UnicornKiller
  module Kill
    def quit
      sec = (Time.now - @process_start).to_i
      warn "#{self.class} send SIGQUIT (pid: #{Process.pid})\talive: #{sec} sec"

authorNari

OK, Let's begin. Hello, Everybody.
My name is Narihiro Nakamura.
Today, I'm talking about "Parallel worlds of CRuby's GC".

I'm very happy now, because I'm meeting attendee in rubyconf.
And, one of my dreams is to talk in rubyconf.
So, I'm very happy and exciting.

Today is my first presentation in English.
My English is not good.

jboner

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

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx

robertsosinski

create trigger trades_readonly_trigger before insert or update or delete or truncate on trades for each statement execute procedure readonly_trigger_function();

shinzui

Ruby Learning Links

Tutorials

• https://github.com/thoughtbot/trail-map
• http://tutorials.jumpstartlab.com/
• http://ruby.learncodethehardway.org/
• http://rubykoans.com/
• http://rubymonk.com/
• http://tryruby.org/
• http://www.jasimabasheer.com/posts/meta_introduction_to_ruby.html* http://railsforzombies.org/

marianposaceanu

Typographic glyphs

Shortcuts and proper use

name	glyph	mac	other	description
curly single quotes	‘ ’	Option+] and Shift+Option+]	ALT-0145 and ALT-0146	hover for description
curly double quotes	“ ”	Option+[ and Shift+Option+[	ALT-0147 and ALT-0148	-

jdickey

#!/usr/bin/env ruby

# findbreaks 0.9
# Script to find all spec files in an `rspec` run that report errors and produce
# a list of all failed spec filenames, with each such listed once. Useful if you
# have numerous specs that break due to a world-changing edit you've just made,
# and you want a nice list of the broken specs without having to read through
# hundreds of lines of RSpec bleeding on your terminal. Pick one; fix it; run
# this again; repeat.
#

marianposaceanu

VIM Tips

Record a sequence

Use q + [lowercase letter to name the macro] then do stuff and when done q and @a or 22@a to repeat.

Advanced search and replace

s:url("../images/\(.*\)");:url("<%= asset_path '\1' %>");:gi