JITをたどるとそこはYARVの中

1. +*5ΛͨͲΔͱ
   ͦ͜͸:"37ͷத
2. ͓͓͍͔ͭ͠͞
3. ruby --jit
4. def fib(num) if num < 2 num else fib(num - 2) + fib(num - 1) end end
5. fib(35)
6. $ time ruby fib.rb real 0m1.636s user 0m1.520s sys 0m0.050s
7. $ time ruby —jit fib.rb real 0m0.786s user 0m1.280s sys 0m0.050s
8. Ͳ͏ͯ͠଎͘ͳΔͷʁ
9. ϝιουͷόΠτίʔυΛ $ʹม׵ͯ͠ίϯύΠϧ͠ ͯTPϑΝΠϧΛ࡞੒ͯ͠ EMTZNͯ͠खʹೖΕͨؔ਺ ϙΠϯλΛ࢖ͬͯϚγϯޠ
10. 1IPUP
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    6OTQMBTI ͍ͭ͜ɺͳʹݴͬͯΜͩʁ
11. 7.Α͘஌Βͳ͍͚Ͳ
    ஌͍ͬͯΔΑ͏ͳإ
    ͠ͱ͜͏ 1IPUP
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13. :"37 3VCZ7. Λ஌Ε͹+*5΋
    Θ͔Δ ͸ͣ
14. ͋ͱ෼Ͱ3VCZ,BJHJ ͷ+*5ͷηογϣϯ͕
    Θ͔ΔΑ͏ʹͳΓ·͢
    ͸ͣ
15. ίϯϐϡʔλ
17. ిࢠܭࢉػ
18. 2 * 3 + 4 * 5
19. 2 3 * 4 5 * +
20. 2 3 * 4 5 * + ελοΫ
21. 2 3 * 4 5 * + ελοΫ 2 PUSH 2
22. 2 3 * 4 5 * + ελοΫ 2 3 PUSH 2 PUSH 3
23. 2 3 * 4 5 * + ελοΫ 6 PUSH 2 PUSH 3 MUL
24. 2 3 * 4 5 * + ελοΫ 6 4 PUSH 2 PUSH 3 MUL PUSH 4
25. 2 3 * 4 5 * + ελοΫ 6 4 5 PUSH 2 PUSH 3 MUL PUSH 4 PUSH 5
26. 2 3 * 4 5 * + ελοΫ 6 20 PUSH 2 PUSH 3 MUL PUSH 4 PUSH 5 MUL
27. 2 3 * 4 5 * + ελοΫ 26 PUSH 2 PUSH 3 MUL PUSH 4 PUSH 5 MUL ADD
28. 3VCZ͚͕ͩಈ͘ઐ༻ͷίϯϐϡʔλ
29. 2 * 3 + 4 * 5
30. 2 3 * 4 5 * +
31. 2 3 * 4 5 * + ελοΫ
32. 2 3 * 4 5 * + ελοΫ 2 putobject 2
33. 2 3 * 4 5 * + ελοΫ 2 3 putobject 2 putobject 3
34. 2 3 * 4 5 * + ελοΫ 6 putobject 2 putobject 3 opt_mult mid:*, argc:1
35. 2 3 * 4 5 * + ελοΫ 6 4 putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4
36. 2 3 * 4 5 * + ελοΫ 6 4 5 putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5
37. 2 3 * 4 5 * + ελοΫ 6 20 putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1
38. 2 3 * 4 5 * + ελοΫ 26 putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1 opt_plus mid:+, argc:1
39. 2 3 * 4 5 * + ελοΫ 26 putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1 opt_plus mid:+, argc:1 όΠτίʔυ
40. ϝιουͷόΠτίʔυΛ $ʹม׵ͯ͠ίϯύΠϧ͠ ͯTPϑΝΠϧΛ࡞੒ͯ͠ EMTZNͯ͠खʹೖΕͨؔ਺ ϙΠϯλΛ࢖ͬͯϚγϯޠ
41. putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1 opt_plus mid:+, argc:1 όΠτίʔυ :"37
    3VCZ7.
42. putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1 opt_plus mid:+, argc:1 όΠτίʔυ :"37
    3VCZ7.
43. putobject 2 putobject 3 opt_mult mid:*, argc:1 putobject 4 putobject 5 opt_mult mid:*, argc:1 opt_plus mid:+, argc:1 όΠτίʔυ :"37
    3VCZ7. ϋʔυ΢ΣΞͰ͸ͳ͘
    ιϑτ΢ΣΞͰԾ૝తʹ࡞ΒΕͨܭࢉػ
44. +VTU
    *O
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45. ͳΜͷͨΊʹʁ 1IPUP
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46. ΋ͬͱ଎͘
47. putobject 2 putobject 3 opt_mult mid:*, argc:1 :"37
    3VCZ7.
48. putobject 2 putobject 3 opt_mult mid:*, argc:1 :"37
    3VCZ7. όΠτίʔυΛCʹม׵ͯ͠ ίϯύΠϧͯ͠࡞੒ͨ͠ .soϑΝΠϧ
49. putobject 2 putobject 3 opt_mult mid:*, argc:1 :"37
    3VCZ7. όΠτίʔυΛCʹม׵ͯ͠ ίϯύΠϧͯ͠࡞੒ͨ͠ .soϑΝΠϧ
50. 3VCZͷ+*5
51. ݺͼग़͠ճ਺ͷ ଟ͍ϝιουΛ +*5͢Δ
52. +*5ͯ͠ϦϯΫ ͢Δϝιου਺ ʹ͸্ݶ͕͋Δ
53. 3VCZͷ+*5
54. --jit-max-cache=num Max number of methods to be JIT-ed in a cache (default: 1000) --jit-min-calls=num Number of calls to trigger JIT (for testing, default: 5)
55. 3VCZQSFWJFX
    ͷ+*5
56. --jit-max-cache=num Max number of methods to be JIT-ed in a cache (default: 100) --jit-min-calls=num Number of calls to trigger JIT (for testing, default: 10000)
57. 3VCZ,BJHJͷ+*5ͷ
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