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BRUG: Evolution of Ruby GC

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Avatar for Sergey Avseyev Sergey Avseyev
October 03, 2013
Programming
300
1

BRUG: Evolution of Ruby GC

Avatar for Sergey Avseyev

Sergey Avseyev

October 03, 2013

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Transcript

  1. Evolution of Ruby GC

  2. alloca(3) void f1(int n) { int *r; r = alloca(n

    * sizeof(int)); ... } int f2() { float x; f1(42); ... }

  3. alloca(3) f2() void f1(int n) { int *r; r =

    alloca(n * sizeof(int)); ... } int f2() { float x; f1(42); ... } float

  4. alloca(3) f2() void f1(int n) { int *r; r =

    alloca(n * sizeof(int)); ... } int f2() { float x; f1(42); ... } float f1(42) int *

  5. alloca(3) f2() void f1(int n) { int *r; r =

    alloca(n * sizeof(int)); ... } int f2() { float x; f1(42); ... } float f1(42) int[42] int *

  6. alloca(3) f2() void f1(int n) { int *r; r =

    alloca(n * sizeof(int)); ... } int f2() { float x; f1(42); ... } float

  7. Reference Counting 1

  8. Reference Counting 2

  9. Reference Counting 1

  10. Reference Counting 0

  11. Reference Counting 1 1 Cycle!

  12. Copying GC Root Objects

  13. Copying GC Root Objects

  14. Copying GC Root Objects

  15. Copying GC Root Objects

  16. Copying GC Root Objects

  17. Copying GC Root Objects

  18. Copying GC Root Objects

  19. Copying GC Root Objects

  20. Copying GC Root Objects

  21. Mark & Sweep Root Objects

  22. Mark & Sweep Root Objects

  23. Mark & Sweep Root Objects

  24. Mark & Sweep Root Objects

  25. Mark & Sweep Root Objects

  26. Mark & Sweep Root Objects

  27. Mark & Sweep Root Objects

  28. Mark & Sweep Root Objects

  29. Mark & Sweep Root Objects

  30. Mark & Lazy Sweep: 1.9 heap free list NULL

  31. Mark & Lazy Sweep: 1.9 heap free list

  32. Mark & Lazy Sweep: 1.9 heap free list

  33. Mark & Lazy Sweep: 1.9 heap free list NULL

  34. Mark & Lazy Sweep: 1.9 heap free list NULL

  35. Mark & Sweep: 2.0 Root Objects Bitmap

  36. Generational GC: 2.1 Большинство либо умирают молодыми, либо выживают и

    существуют достаточно долго

  37. Generational GC: 2.1 Root Objects Minor GC: 1

  38. Generational GC: 2.1 Root Objects Minor GC: 1

  39. Generational GC: 2.1 Root Objects Minor GC: 1

  40. Generational GC: 2.1 Root Objects Minor GC: 1

  41. Generational GC: 2.1 Root Objects Minor GC: 1

  42. Generational GC: 2.1 Root Objects Minor GC: 1

  43. Generational GC: 2.1 Root Objects Minor GC: 1

  44. Generational GC: 2.1 Root Objects

  45. Generational GC: 2.1 Root Objects

  46. Generational GC: 2.1 Root Objects Minor GC: 2

  47. Generational GC: 2.1 Root Objects Minor GC: 2

  48. Generational GC: 2.1 Root Objects Remember Set

  49. Generational GC: 2.1 Root Objects Remember Set Major GC

  50. Generational GC: 2.1 Root Objects Remember Set Major GC

  51. Generational GC: 2.1 Root Objects Remember Set Major GC

  52. Generational GC: 2.1 Root Objects Remember Set

  53. Generational GC: 2.1 Old New

  54. Generational GC: 2.1 Old New Write Barrier

  55. Generational GC: 2.1 Root Objects Remember Set val = rb_str_new("foo");

    RARRAY_PTR(ary)[0] = val;

  56. Generational GC: 2.1 Root Objects Remember Set val = rb_str_new("foo");

    RARRAY_PTR(ary)[0] = val;

  57. Generational GC: 2.1 Root Objects Remember Set val = rb_str_new("foo");

    RARRAY_PTR(ary)[0] = val;

  58. Спасибо Вопросы?