nwjsmith

Writing Commit Messages

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nwjsmith

class Proc
  def <<(other)
    case other
    when Proc
      Proc.new do |*args|
        call(other.call(*args))
      end
    else
      call(other)
    end

nwjsmith

class OnDestroyMiddleware
  def initialize(app, env)
    @app = app
  end
    
  def call(env)
    env["config"].vm.provisioners.each do |provisioner|
      env.ui.info "Attempting to remove client #{provisioner.config.node_name}"
      `knife client show #{provisioner.config.node_name}`
      if $?.to_i == 0

nwjsmith

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
Send 1K bytes over 1 Gbps network        10,000 ns    0.01 ms
Read 1 MB sequentially from memory      250,000 ns    0.25 ms
Round trip within same datacenter       500,000 ns    0.5  ms
Read 1 MB sequentially from SSD       1,000,000 ns    1    ms  4X memory

nwjsmith

Installing rbx-2.0.0-dev with Ruby 1.9 support using rbenv can be a tad tricky. This is what I did to get up and running, you'll need another version of ruby already installed as well as rake.

The basic outline:

1. Clone Rubinius HEAD from github
2. Configure installation for rbenv and 1.9 support
3. Install Rubinius
4. Configure your $PATH to use Rubinius gems
5. Start using Rubinius