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Ruby Garbage Collection

Avatar for Simon Hørup Eskildsen Simon Hørup Eskildsen
May 06, 2013
Programming
1
180

Ruby Garbage Collection

Avatar for Simon Hørup Eskildsen

Simon Hørup Eskildsen

May 06, 2013
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Transcript

  1. Ruby Garbage Collection Simon Hørup Eskildsen @Sirupsen

  2. None

  3. Mark and Sweep (< 1.9) Lazy Sweeping (>= 1.9) Lazy

    Bitmask Sweeping (2.0) Geneartional GC (2.1?) Concurrent GC (??)

  4. Mark and Sweep

  5. None
  6. None

  7. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  8. None
  9. None

  10. Root objects Freeable

  11. None

  12. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  13. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

  14. None

  15. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

    Free List

  16. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE

    Free List

  17. RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE Free

    List

  18. RVALUE RCLASS RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE RVALUE Free

    List

  19. The Copy-on-Write Problem

  20. None
  21. None

  22. Process #2 Process #1

  23. Process #2 Process #1

  24. None
  25. None

  26. Process #2 Process #1 ? ? ? ? ? ?

    ?
  27. None

  28. Process #2 Process #1

  29. Ruby 2.0

  30. 0 0 1 0 0 1 1

  31. None

  32. Process #2 Process #1 bar foo

  33. CoW problem fixed: => Less memory => Faster

  34. Geneartional GC Ruby 2.1?

  35. Root objects Freeable M&S Freeable

  36. Old Root objects Freeable Old M&S Freeable

  37. Prospects of a Concurrent GC