Grow Your Unix Beard With Ruby

Transcript

1. Grow Your Unix Beard With Ruby Jesse Storimer Wednesday, 10 October, 12
2. @jstorimer Wednesday, 10 October, 12
3. Wednesday, 10 October, 12
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5. Unix Ruby Wednesday, 10 October, 12
6. Wednesday, 10 October, 12
7. http://tomayko.com/writings/unicorn-is-unix Wednesday, 10 October, 12
8. Wednesday, 10 October, 12
9. :o Wednesday, 10 October, 12
10. Wednesday, 10 October, 12
11. Rack HTTP server for fast clients and Unix Wednesday, 10 October, 12
12. Rack HTTP server for fast clients and Unix Wednesday, 10 October, 12
13. Pre-forking Wednesday, 10 October, 12
14. forking Wednesday, 10 October, 12
15. Wednesday, 10 October, 12
16. fork() creates a new process Wednesday, 10 October, 12
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19. fork() returns twice Wednesday, 10 October, 12
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28. fork() returns twice Wednesday, 10 October, 12
29. fork() returns twice once, but in two processes Wednesday, 10 October, 12
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36. fork() creates an exact copy of the calling process Wednesday, 10 October, 12
37. @hits = Array(1..5) pid = Process.fork do @hits.delete_at(1) puts "Child hits: #@hits" end Process.wait(pid) puts "Parent hits: #@hits" Wednesday, 10 October, 12
38. $hits = Array(1..5) pid = Process.fork do $hits.delete_at(1) puts "Child hits: #{$hits}" end Process.wait(pid) puts "Parent hits: #{$hits}" Wednesday, 10 October, 12
39. Pre-forking Wednesday, 10 October, 12
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43. def start open_listener_socket load_rack_app 2.times do fork { worker_loop } end end def worker_loop loop do connection = listener_socket.accept process_client(connection) end end Wednesday, 10 October, 12
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46. copy on write: share memory until it’s modified Wednesday, 10 October, 12
47. CoW Friendly Rubies •MRI 2.0 •Ruby Enterprise Edition •MRI 1.9.3-p194-perf Wednesday, 10 October, 12
48. http://bit.ly/mri-perf Wednesday, 10 October, 12
49. Wednesday, 10 October, 12
50. accept() accept() Wednesday, 10 October, 12
51. Wednesday, 10 October, 12
52. fast, efficient booting robust connection handling Wednesday, 10 October, 12
53. worker heartbeats self-pipe trick Wednesday, 10 October, 12
54. replace an instance of itself without losing any connections Wednesday, 10 October, 12
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56. exec() transforms the calling process into a new process Wednesday, 10 October, 12
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62. def reexec fork do cmd = [$0] cmd << ARGV.dup ENV['LISTENERS'] = sockets.map(&:fileno) exec(*cmd) # exec("unicorn", "-c", "unicorn_config.rb") end end Wednesday, 10 October, 12
63. Wednesday, 10 October, 12
64. Old Master Worker Worker Wednesday, 10 October, 12
65. Old Master Worker Worker Worker Worker New Master Wednesday, 10 October, 12
66. Worker Worker New Master Wednesday, 10 October, 12
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69. The original Unix beards Wednesday, 10 October, 12
70. “[..] the Unix beard is really an extension of the philosopher's beard, and the academic's beard.” Wednesday, 10 October, 12
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73. Thanks! Tweet @jstorimer Email jstorimer@gmail.com Books http://workingwithcode.com Use MAGICRUBY to save $10 Wednesday, 10 October, 12
74. Refs •http://www.colourlovers.com/palette/1938182/coconut_lips_RC •http://www.colourlovers.com/palette/1111659/Ninja_Rainbow •http://www.flickr.com/photos/soyunterrorista/2658174628/sizes/l/in/photostream/ •http://www.colourlovers.com/palette/1936237/Keynote_2 •http://whiteboardunicorns.com/ •http://www.flickr.com/photos/amyvdh/6003141750/sizes/o/in/photostream/ •http://www.twoideas.org/2009/07/unix-beards/ •http://www.flickr.com/photos/69er/463302758/ Wednesday, 10 October, 12