ソフトウェア開発における 「設計」と「パフォーマンス」の相互作用 / Interaction Between Design and Performance on Software Development

設計Night2018の資料です
https://connpass.com/event/104821/

Transcript

1. ιϑτ΢ΣΞ։ൃʹ͓͚Δ
   ʮઃܭʯͱʮύϑΥʔϚϯεʯͷ૬ޓ࡞༻
   Interaction Between Design and Performance on

   Software Development
   ઃܭNight2018
   @moznion
   

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2. @moznion
   Software Engineer
   ࠷ۙαϒςΫʹೖΓ·ͨ͠
   

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3. DISCLAIMER
   

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4. ۩ମతͳιϑτ΢ΣΞઃܭٕ๏ɾख๏ͷ

   ࿩୊͸ଞͷൃදʹৡΓ·͢
   

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5. ʮઃܭʯͱʮύϑΥʔϚϯεʯ
   

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6. ύϑΥʔϚϯεͷఆٛ (؆ܿʹ)
   - ߴ଎ʹϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ͨ͘͞ΜϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ʮਖ਼֬ʹʯ
   

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7. ύϑΥʔϚϯεͷఆٛ (؆ܿʹ)
   - ߴ଎ʹϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ͨ͘͞ΜϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ʮਖ਼֬ʹʯ
   

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8. ύϑΥʔϚϯεͷఆٛ (؆ܿʹ)
   - ߴ଎ʹϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ͨ͘͞ΜϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ʮਖ਼֬ʹʯ
   

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9. ύϑΥʔϚϯεͷఆٛ (؆ܿʹ)
   - ߴ଎ʹϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ͨ͘͞ΜϨεϙϯεΛฦ͢͜ͱ͕Ͱ͖Δ
   - ʮਖ਼֬ʹʯ
   

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10. ͳͥύϑΥʔϚϯεΛ௥ٻ͢Δͷ͔
    

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11. - ྑ͍Πϯλʔωοτମݧͷఏڙ
    - ΑΓଟ͍ʮػձʯͷ૑ग़
    - Πϯϑϥઃඋͷ࠷దԽ
    - ==> ͭ·Γθχ΍ʂʂʂʂʂʂ
    ͳͥύϑΥʔϚϯεΛ௥ٻ͢Δͷ͔
    

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12. - ྑ͍Πϯλʔωοτମݧͷఏڙ
    - ΑΓଟ͍ʮػձʯͷ૑ग़
    - Πϯϑϥઃඋͷ࠷దԽ
    - => ͭ·Γθχ΍ʂʂʂʂʂʂ
    ͳͥύϑΥʔϚϯεΛ௥ٻ͢Δͷ͔
    

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13. ͭ·Γθχ΍ʂʂʂʂʂ
    

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14. ύϑΥʔϚϯεͤ͞΍͍͢ઃܭʁ
    

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15. - ΞϧΰϦζϜ
    - σʔλߏ଄
    - (ϋʔυ΢ΣΞ)
    ύϑΥʔϚϯεͤ͞΍͍͢ઃܭ (Ұྫ)
    - ϑΝϯΞ΢τ
    - ΩϡʔΠϯά
    - Ωϟογϡ ɹ- όον
    ਨ௚ࢦ޲ ਫฏࢦ޲
    ͦͷଞ
    

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16. ਨ௚ࢦ޲ͷઃܭ
    

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17. - ద੾ͳΞϧΰϦζϜͷద༻
    - ద੾ͳσʔλߏ଄ͷద༻
    - සग़) ୳ࡧɼιʔτͳͲ
    - ͳΜͰ΋͔ΜͰ΋ϋϯϚʔΛ࢖ͬͯ͸ͩΊ
    ਨ௚ࢦ޲ͷઃܭ
    

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18. - ΞϧΰϦζϜ΍σʔλߏ଄͸খ͍͞ύʔπ
    - ଞͷઃܭख๏ͱͷ૊Έ߹Θ͕ͤൺֱత༰қ
    - => ੹຿͕໌֬Ͱ͋Δ͜ͱʹڌΓͦ͏
    - ࠜຊతͳύϑΥʔϚϯεվળΛਤΔͳΒ͜͜ʂ
    ਨ௚ࢦ޲ͷઃܭ
    

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19. - ʮҰ൪͍͍ϚγϯΛཔΉʯ
    - ϋʔυ΢ΣΞઃܭͷਐาʹཔΔʂʂʂ
    - ࠓճͷ࿩୊ͱ͸Ұ੾ؔ܎ͳ͍Ͱ͢
    - ͱ͸͍͑ϋʔυ΢ΣΞͷਐาʹΑͬͯ

    ιϑτ΢ΣΞઃܭͷٕ๏͕มΘΔ͜ͱ͸͋Γͦ͏
    ਨ௚ࢦ޲ͷઃܭ (൪֎)
    

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20. ਫฏࢦ޲ͷઃܭ
    

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21. - ϑΝϯΞ΢τ
    - ෳ਺ͷϓϩηεɾϚγϯͰฒߦॲཧ
    - ෳ਺ͷϓϩηεɾϚγϯͰฒྻॲཧ (ڠௐॲཧ)
    - (Reactive...?)
    - ϑΝϯΠϯ͕ཁΔ (৔߹͕͋Δ)
    ਫฏࢦ޲ͷઃܭ
    

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22. - ΩϡʔΠϯά
    - δϣϒΩϡʔͰޙճ͠େ࡞ઓ (™@nekokak)
    - ཁ͸όοϑΝϨΠϠʔʹॲཧΛ٧ΊࠐΉ
    - ϫʔΧʔ (૬౰) ͕ॲཧΛ੥͚ෛ͏
    - εϩοτϦϯά͕͠΍͍͢
    ਫฏࢦ޲ͷઃܭ
    queue (buffer)
    

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23. - ΩϡʔΠϯά
    - ҎԼΛຬ଍͢Δ؀ڥͰ͋Ε͹ຊ౰ʹޮՌత
    - ϦΞϧλΠϜੑ͕ٻΊΒΕͳ͍
    - ஗Ԇ͕ڐ༰͞ΕΔ
    ਫฏࢦ޲ͷઃܭ
    queue (buffer)
    

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24. - (ଟ͘ͷ৔߹) ඇಉظॲཧ͔Βಀ͛ΒΕͳ͍
    - ඇಉظॲཧ͕ϏδωεϩδοΫʹ

    ͢ΜͳΓ࣮૷͞ΕΔ͜ͱ͸ͦ͏ଟ͘͸ͳ͍
    - ϓϩτίϧελοΫͷ࣮૷౳Ͱ͸͋Δ͔΋
    ਫฏࢦ޲ͷઃܭ
    

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25. - ඇಉظͰ΋ಈ͘Α͏ʹ࣮૷͢Δඞཁ͕ग़ͯ͘Δ
    - ྫ
    - ॱংੑʹڍಈΛࢧ഑͞Εͳ͍
    - ႈ౳ੑΛ୲อ࣮ͯ͠૷͢Δ
    - ௚ײʹ൓͢Δ৔߹͕ଟ͍……
    ਫฏࢦ޲ͷઃܭ
    

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26. - ύϑΥʔϚϯεͷͨΊͷ౎߹͕ϏδωευϝΠϯͷ

    ઃܭΛ࿪Ί͕ͪ
    - ஫ҙਂ͘ઃܭ͢Δͱ͏·͘ಇ͘৔߹΋͋Δ (ޙड़)
    - (ʮӡ͕ྑ͚Ε͹ʯ͔΋͠Εͳ͍)
    - ͏͔ͬΓૉ๿ʹ࣮૷͢Δͱ……ᄾݺ
    ਫฏࢦ޲ͷઃܭ
    

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27. - ࡶଟͳۤ͠ΈΛݺͼ͕ͪ
    - ϨʔείϯσΟγϣϯ
    - ϦτϥΠ
    - εςʔτͷෆ੔߹
    - ͳͲͳͲ……
    - Ref: ෼ࢄΩϡʔͱ͍͏໊ͷۤ͠Έ - Software Transactional Memo

    http://kumagi.hatenablog.com/entry/queue_struggle
    ਫฏࢦ޲ͷઃܭ
    

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28. - εέʔϧ͢Δʢ͠΍͍͢ʣʂʂ
    - ͔͠͠τϨʔυΦϑ͸ଟ͍
    - ͦΕͰ΋ಋೖ͢Δ͔Ͳ͏͔ͷίετ൑அʢޙड़ʣ
    ਫฏࢦ޲ͷઃܭ
    

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29. - FaaSʹΑΔύϥμΠϜͷมԽ
    - ԋࢉϦιʔεΛΦϯσϚϯυͰ҆͘࢖͑ΔΑ͏ʹͳͬͨ
    - FunctionʹॲཧΛҕৡͯ͠͠·͏
    - Firebaseͱ͔Ͱׂͱਪ঑͞ΕΔख๏
    - ʮͱΓ͋͑ͣδϣϒΩϡʔʹೖΕ͓͍ͯͯ͋ͱͰॲཧʯ
    - ΊͬͪΌ΍Γ΍͘͢ͳͬͨ
    - ୯Ұ੹೚ͷݪଇ (SRP) ͕ൺֱతຬͨ͞Ε΍͘͢ͳͬͨҹ৅
    - (ίϯϙʔωϯτͷϝϯςίετ΋Լ͕Δ)
    ਫฏࢦ޲ͷઃܭ (൪֎?)
    

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30. SONOTA
    

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31. - όον
    - ͋Β͔͡ΊίϯςϯπΛ΋Γ΋Γੜ੒

    ͓͍ͯͯ͠ΞϓϦ͸ͦΕΛฦ٫͢Δ͚ͩͱ͔
    - αϚϦςʔϒϧͱ͔……
    - ͜Ε΋ଈ࣌ੑͱͷ݉Ͷ߹͍ͷ࿩୊ʹͳΔ
    ͦͷଞ
    

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32. - Ωϟογϡ
    - खͬऔΓૣ͍ͥʢةݥࢥ૝ʣ
    - YAPC::Kansai 2017 OSAKAͰ࿩͠·ͨ͠
    - https://speakerdeck.com/moznion/pattern-and-strategy-of-
    web-application-caching
    - (↑Ͱ࿩͍ͯ͠ͳ͍࿩୊ͱͯ͠͸ϚςϏϡʔ͕͋Γͦ͏)
    ͦͷଞ
    

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33. - Ωϟογϡ΍όον͸ຊ࣭త͔Ͳ͏͔
    - ଟ͘ͷ৔߹͸ຊ࣭తͰ͸ͳ͍……ʁ
    ͦͷଞ
    

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34. - ຊ࣭ͱ͸ͳʹ͔……ʁ
    - => ϏδωευϝΠϯɾϩδοΫͷ៉ྷ͞
    - => θχ΍ʂʂʂʂʂʂ
    ͦͷଞ
    

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35. - ຊ࣭ͱ͸ͳʹ͔……ʁ
    - => ઃܭͷ៉ྷ͞
    - => θχ΍ʂʂʂʂʂʂ
    ͦͷଞ
    

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36. - ຊ࣭ͱ͸ͳʹ͔……ʁ
    - => ઃܭͷ៉ྷ͞

    => θχ΍ʂʂʂʂʂʂ
    ͦͷଞ
    

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37. ͭ·Γθχ΍ʂʂʂʂʂ
    

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38. - ͔͠͠
    - ςΫχΧϧͳ౎߹͕ιϑτ΢ΣΞઃܭʹٴ΅͢Өڹ͸େ͖͍
    - ౎߹ ∈ ϋʔυ΢ΣΞɾϛυϧ΢ΣΞ
    - ςΫχΧϧͳղܾख๏ͷ҆қͳಋೖʹΑͬͯ

    ΧΦεʹ޲͔͍ͬͯ͘Մೳੑ͸ߴ·Δ
    - υϝΠϯͷ࣋ͭϐϡΞ͕ࣦ͞ΘΕΔ
    - ઃܭ͕࿪ΊΒΕ͕ͪ
    ͦͷଞ
    

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39. ઃܭ͕࿪ΊΒΕΔʁ
    

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40. - ઃܭ͕࿪ΊΒΕΔ
    - => ڍಈ͕Θ͔Γʹ͘͘ͳΔ (ίʔυͷಡΈ΍͚ͩ͢͞Ͱ͸ͳ͍)
    - => मਖ਼ίετ͕ߴ͘ͳΔ
    - => ϝϯςίετ͕ߴ͘ͳΔ
    - => ઃܭ͕࿪ΊΒΕ͍ͯΔ͜ͱʹؾͮ͘……
    ઃܭ͕࿪ΊΒΕͯԿ͕ѱ͍ʁ
    

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41. - ઃܭ͕࿪ΊΒΕΔ
    - => ڍಈ͕Θ͔Γʹ͘͘ͳΔ (ίʔυͷಡΈ΍͚ͩ͢͞Ͱ͸ͳ͍)
    - => मਖ਼ίετ͕ߴ͘ͳΔ
    - => ϝϯςίετ͕ߴ͘ͳΔ
    - => ઃܭ͕࿪ΊΒΕ͍ͯΔ͜ͱʹؾͮ͘……
    ઃܭ͕࿪ΊΒΕͯԿ͕ѱ͍ʁ
    

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42. ʮίετʯ
    

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43. - ৽ͨʹػೳΛ࡞Δίετ
    - ίʔυͷϝϯςφϯείετ
    - Πϯϑϥͷϝϯςφϯείετ
    - => ιϑτ΢ΣΞઃܭ͸͜ΕΒʹӨڹΛٴ΅͢
    - => ઃܭ͸ίετͱͷઓ͍
    ίετ
    

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44. ͭ·Γθχ΍ʂʂʂʂʂ
    

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45. - ίετͷ࣠
    - ίϯϐϡʔςΟϯάͷ଎౓ʹΑͬͯϖΠ͢ΔྖҬ
    - ઃܭͷྑ͞ʹΑͬͯϖΠ͢ΔྖҬ
    - ௚ަ͢Δ৔߹΋͋Ε͹૬৐͢Δ৔߹΋૬൓͢Δ৔߹΋͋Δ
    - όϥϯε͕ॏཁ
    - ྑ͍ઃܭͷ৚݅ͷҰͭ: ߹ҙ͕औΕ͍ͯΔ
    - => ίετͱ΋߹ҙΛऔΔඞཁ͕͋Δ
    - ʮσϕϩούͷੜ࢈ੑʯʹݶఆͨ͠࿩Ͱ͸ͳ͍
    ίετ
    

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46. υϝΠϯ஌ࣝͱύϑΥʔϚϯε
    

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47. - υϝΠϯʹର͢Δ஌͕ࣝ଍Γͳ͍৔߹
    - ݟ౰ҧ͍ͷ࣮૷ɾઃܭΛ͕ͪ͠
    - ෆద੾ͳσʔλߏ଄Λ࠾༻ͯ͠͠·ͬͨΓ……
    - ྑ͍ύϑΥʔϚϯεʹ͸υϝΠϯʹର͢Δ஌ࣝɾཧղ͕ඞཁ
    ʮυϝΠϯ஌ࣝͷཧղʯͱύϑΥʔϚϯε
    

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48. ࣮ࡍͲ͏ઃܭ͢Ε͹ྑ͍ͷ͔……
    

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49. ΋ͷʹΑΔ
    

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51. ͋͘·Ͱݸਓͷܦݧͷ࿩ͱͯ͠ฉ͍͍ͯͩ͘͞
    

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52. - ૉ௚ʹϞσϦϯάͯ͠࡞ͬͨ΄͏͕ྑ͍
    - ଟ͘ͷ৔߹࣮༻ʹ଱͑͏Δ଎౓Ͱಈ͘
    - ͪΌΜͱϞσϦϯά͞Ε͍ͯΔ
    - ࠷௿ݶৗࣝతͳઃܭɾ࣮૷͕͞Ε͍ͯΕ͹……
    - ʮඒ͍͠΋ͷ͸ۭؾ఍߅͕খ͍͞ʯͷਫ਼ਆ
    - ࣮ࡍͦΜͳ౎߹ྑ͘͸ͳ͍ͷ͕ͩ……
    - ࠔͬͨΒͬͪ͜ʹ౗͓ͯ͘͠
    ύϑΥʔϚϯεͱઃܭࢦ਑
    

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53. - ͔͋͠͠Δ೔ʢϦϦʔεॳ೔͔΋……ʣΛڥʹ໓๢͢Δ͔΋
    - ͱ͍͏࣌ʹύϑΥʔϚϯεΛਅ໘໨ʹߟ͑Δ΂͖
    - ཱͪฦͬͯʮྑ͍ઃܭʯͱ͸
    - ΞδϦςΟ
    - ॊೈੑ
    - ྑ͍ઃܭ => ࠷దԽͷ༨஍͕͋Δ͸ͣ
    ύϑΥʔϚϯεͱઃܭࢦ਑
    

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54. ྫ
    

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56. ௨஌͢ΔϢʔβ͕ଟ͗͢Δέʔε
    ௨஌Λ࡞ͬͯૹΔ෦෼Ͱ٧·Δ͔΋ʜʜ
    

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58. ૉ๿ʹϑΝϯΞ΢τ
    ௨஌࡞Δ෦෼΋QVTIૹΔ෦෼΋ͦͷ
    ϓϩηεɾεϨουͰ΍ͬͯ͠·͏
    

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60. ߴස౓ͰૹΒΕΔͱ
    ࢮΜͰ͠·͍·͢ʂ
    Έ͍ͨͳ৔߹
    

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62. όοϑΝʹΩϡʔΠϯά
    ϫʔΧʔͷ਺ͰεϩοτϦϯά
    ͍ͭͰʹ431
    

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64. ࣮͸͜͜ͰڥքΛ෼͚ΔͱεοΩϦ͢Δʁ
    

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65. @startuml
    actor User
    participant Comment
    participant WatchingUser
    participant Queue
    participant Worker1
    participant WorkerN
    participant Notification
    participant PushNotificationGateway
    Worker1 -> Queue : subscribe
    WorkerN -> Queue : subscribe
    User -> Comment : postComment
    Comment -> WatchingUser : fetchWatchingUser
    Comment -> Comment : buildNotificationBody
    Comment -> Queue : enqueueNotificationPayload
    group publishing as async until queue is empty
    Queue -> Worker1 : publish
    Worker1 -> Notification : create
    Notification -> PushNotificationGateway : sendNotification
    Queue -> WorkerN : publish
    WorkerN -> Notification : create
    Notification -> PushNotificationGateway : sendNotification
    end
    @enduml
    

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66. @startuml
    actor User
    participant Comment
    participant WatchingUser
    participant Queue
    participant Worker1
    participant WorkerN
    participant Notification
    participant PushNotificationGateway
    Worker1 -> Queue : subscribe
    WorkerN -> Queue : subscribe
    User -> Comment : postComment
    Comment -> WatchingUser : fetchWatchingUser
    Comment -> Comment : buildNotificationBody
    Comment -> Queue : enqueueNotificationPayload
    group publishing as async until queue is empty
    Queue -> Worker1 : publish
    Worker1 -> Notification : create
    Notification -> PushNotificationGateway : sendNotification
    Queue -> WorkerN : publish
    WorkerN -> Notification : create
    Notification -> PushNotificationGateway : sendNotification
    end
    @enduml
    /PUJpDBUJPOΛ࡞Δ෦෼͝ͱ
    ΩϡʔΠϯάͯ͠͠·͏
    ϫʔΧʔ͕͍͍ײ͡ʹॲཧ
    

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67. Notification͝ͱΩϡʔΠϯά͢ΔϞνϕʔγϣϯ
    - ଈ࣌ੑ͕ͳͯ͘΋Αͦ͞͏
    - Comment͸dispatchʹઐ೦Ͱ͖Δ
    - rate limitͱ͔Λߟ͑Δඞཁ͕ͳ͘ͳΔ
    - ୯ҰͷίϯϙʔωϯτΛݟͨ࣌ʹγϯϓϧ
    

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68. Notification͝ͱΩϡʔΠϯά͢Δݒ೦
    - ෦඼͕૿͑Δͱෳࡶੑ͕૿͢
    - ϛΫϩͩͱγϯϓϧ͕ͩɼϚΫϩͩͱෳࡶʹͳͬͯͳ͍͔
    - Worker͕ʮ୭͔ΒૹΒΕ͖ͯͨδϣϒʯ͔஌͓ͬͯ͘ඞཁ͕

    ͋ΔΜ͡Όͳ͍͔ʁ
    - => ͜Ε͸ΩϡʔΛΘ͚Ε͹ྑ͍
    - => ಛఆͷΩϡʔʹ͸ಛఆͷ୯ػೳWorkerΛඥ෇͚Δ
    - ΩϡʔΛϓϩτίϧͷΑ͏ʹऔΓѻ͏
    

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69. ΋ͷʹΑΔ
    (ϘτϧωοΫʹΑΔ)
    ߟ͍͖͑ͯ·͠ΐ͏
    

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70. - ૣ͗͢Δ࠷దԽ͸ࡑͰ͋Δ
    - ύϑΥʔϚϯεͷ౎߹͸υϝΠϯΛ࿪Ί͕ͪ
    - ·ͣ͸υϝΠϯʹدΓఴͬͨઃܭ͕ྑ͍
    - ʮඒ͍͠΋ͷ͸ۭؾ఍߅͕গͳ͍ʯ
    - ͔͠͠࠷దԽͷ༨஍Λ࢒͢͜ͱ͸ॏཁ
    - ʮ࠷దԽͷ༨஍͕͋Δઃܭʯ͕ୈҰஈ֊ͱͯ͠ͷྑ͍ઃܭͰ͸ͳ͍͔
    ύϑΥʔϚϯεͱઃܭࢦ਑
    

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71. Q?
    

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