Node Apps Performance Tuning

YAPC::ASIA Hachioji 2016 mid in Shinagawa

Transcript

1. Node Apps
   Performance Tuning
   @ikemonn
   

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2. @ikemonn
   ΠϯϑϥΤϯδχΞ
   

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3. ໨࣍
   1. ߏ੒
   2. ଌఆ
   3. νϡʔχϯά
   4. ·ͱΊ
   

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4. ໨࣍
   1. ߏ੒
   2. ଌఆ
   3. νϡʔχϯά
   4. ·ͱΊ
   

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5. v4.4.3
   v3.0.8
   

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6. ໨࣍
   1. ߏ੒
   2. ଌఆ
   3. νϡʔχϯά
   4. ·ͱΊ
   

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7. response timeΛ֤ॲཧͰଌఆ
   1. ࣗ෼Ͱॻ͍ͨίʔυͷܭଌ
   

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8. var dogstatsd = require('libs-dogstatsd')
   const stats = dogstatsd.start();
   // some method
   stats.tick('test');
   libs-dogstatsd
   

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10. CPU? or Memory?
    2. ࣗ෼Ͱॻ͍ͨίʔυҎ֎ͷܭଌ
    

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11. node-inspector/v8-profiler
    thlorenz/traceviewify
    

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12. x࣠: CPU time
    y࣠: stack trace
    

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13. ԣ෯͕޿͘(CPU timeΛফඅ͍ͯͯ͠)
    ΪβΪβͰͳ͍(ಛఆͷॲཧ͕ϘτϧωοΫ)
    ΋ͷΛ୳͢
    

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14. virtual
    

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15. • Mongoose Document
    • vogels
    • console.error
    

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16. ໨࣍
    1. ߏ੒
    2. ଌఆ
    3. νϡʔχϯά
    4. ·ͱΊ
    

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17. • Mongoose Document
    • lean()Λ࢖͏
    • vogels
    • aws-sdkΛ࢖͏
    • console.error
    • stackΛग़͢৔ॴΛߜΔ
    

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18. 25%վળʂ
    

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19. ໨࣍
    1. ߏ੒
    2. ଌఆ
    3. νϡʔχϯά
    4. ·ͱΊ
    

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21. profileΛऔΔ͜ͱͰ
    ࣗ෼ͷίʔυҎ֎ͷ
    ϘτϧωοΫʹؾ͚ͮͨʂ
    

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22. We are hiring!
    https://www.wantedly.com/projects/54721
    

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