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Come funziona Stack Overflow

Avatar for Marco Cecconi Marco Cecconi
February 26, 2014
Programming
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Come funziona Stack Overflow

Slide dell'intervento a Community Days 2013

Avatar for Marco Cecconi

Marco Cecconi

February 26, 2014
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Transcript

  1. #CDays14 – Milano 25, 26 e 27 Febbraio 2014 COME

    FUNZIONA STACK OVERFLOW Marco Cecconi @sklivvz http://stackoverflow.com/

  2. Come Funziona Marco Cecconi @sklivvz [email protected]

  3. None
  4. None

  5. 54° network per traffico a livello globale* …and 15° in

    Italia, grazie! *source: Quantcast, Alexa

  6. 544,408,192 pagine servite negli ultimi 30 giorni* (~200,000,000 in piú

    rispetto a Febbraio 2013) *source: Quantcast
  7. None

  8. web servers load balancers redis search database http(s) http rest

    http protobuf sql sql protobuf tag engine
  9. None
  10. None

  11. Stiamo ancora scalando “in su”…

  12. YAGNI* Funziona. * You Ain’t Gonna Need It!

  13. Pochi progetti :-)

  14. Pochi progetti :-) Poche linee di codice :-)

  15. Pochi progetti :-) Poche linee di codice :-) Eeek! Pochissimi

    test :-S

  16. Few projects :-) Few lines of code :-) Fantastica comunità

    che ci aiuta :-D Eeek! very few tests :-S

  17. BATCAVERNA

  18. DEV.SO BATCAVERNA

  19. META.SO DEV.SO BATCAVERNA

  20. META.SO DEV.SO BATCAVERNA

  21. META.SO NETWORK DEV.SO BATCAVERNA

  22. Via veloce e spacca tutto

  23. Via veloce e spacca tutto* * Non la home page

    o le domande :-)

  24. * Non la home page o le domande :-) Via

    veloce e spacca tutto*

  25. Cache a livello di rete (Browser, CDN, ecc.) Cache in

    memoria server (HttpRuntime.Cache) Cache in memoria distribuita (Redis) Cache in memora SQL Server (384 giga di RAM!) Dischi a stato solido
  26. None
  27. None
  28. None
  29. None
  30. None

  31. * Fonte http://it.wikipedia.org/wiki/Reinventare_la_ruota

  32. None
  33. None
  34. None

  35. Reinventiamo ruote migliori! Liberiamo il sorgente delle ruote!

  36. None

  37. <3 I NERD

  38. PROGRAMMIAMO SUL NUDO METALLO \m/

  39. ASSUMIAMO IL MIGLIOR TALENTO, OVUNQUE

  40. BAT CAVERNA

  41. Ir=kag=omz=pqoapq=ftue,=ymknq=iq=omz=fmxw=vane1Zewxuhhl&efmowahqdrxai.oay $_='@mk=uf=radimdp1Z--&ewxuhhl';tr/=1m-za-l@&Z/ !a-zP@\n/&print; Marco Cecconi @sklivvz [email protected] Domande?

  42. #CDays14 – Milano 25, 26 e 27 Febbraio 2014 Grazie

    a Sponsor

  43. #CDays14 – Milano 25, 26 e 27 Febbraio 2014 Q&A

    Tutto il materiale di questa sessione su http://www.communitydays.it/ Lascia il feedback su questa sessione, potrai essere estratto per i nostri premi! Seguici su Twitter @CommunityDaysIT Facebook http://facebook.com/cdaysit #CDays14