michaelbiven

template "/tmp/foo.rb"
  source "foo.rb.erb"
  cookbook "banana"
end

michaelbiven

Nick-Stielaus-MacBook-Pro:chef-repo nstielau$ knife node log nstielau_vagrantup.com
Time                            Recipe                          Action                          Resource Type                   Resource                      
Tue May 10 10:25:20 -0700 2011  nginx::source                   create                          template                        proxy.conf                    
Tue May 10 10:25:20 -0700 2011  nginx::source                   enable                          service                         nginx                         
Tue May 10 09:50:42 -0700 2011  nginx::source                   create                          template                        /etc/init.d/nginx 

michaelbiven

- name: install python (CentOS 6)
  yum: name={{item}} enablerepo=epel state=installed
  with_items:
    - PyYAML
    - python-paramiko
    - python-jinja2
  when: ansible_os_family == 'RedHat' and ansible_distribution_version.split('.')[0]|int == 6
  tags: python

- name: install python26 (CentOS 5)

michaelbiven

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
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms