Webcamp Zagreb 2013

Feb47da2c35970e555c30f044007daab?s=47 Goran Peretin
October 27, 2013
Programming
1
130

Webcamp Zagreb 2013

Slides for a talk "Concurrency" that I gave at Webcamp Zagreb.

Feb47da2c35970e555c30f044007daab?s=128

Goran Peretin

October 27, 2013
Tweet

Want more?

Feb47da2c35970e555c30f044007daab?s=48 gperetin
1
170
Feb47da2c35970e555c30f044007daab?s=48 gperetin
2
350
Feb47da2c35970e555c30f044007daab?s=48 gperetin
1
150
3ab1249be442027903e1180025340b3f?s=48 reverentgeek
13
770
A9a491b0fcbe0fbce3d64063a37add99?s=48 rmw
4
420
766b9746b59e6f09e280cd33cf4ed419?s=48 skipperchong
0
260
61857dafbd287b3027c4dcea9008ad3c?s=48 carmenhchung
8
560
06f8b41980eb4c577fa40c41d5030c19?s=48 keathley
9
300
C0390e8b11079f8761c0cd3274ed61cb?s=48 productmarketing
3
350
C35e01544a0dd94a2cf1619ee8a42ebb?s=48 clairelew
4
810
6bb82b13cda86d3b821fa44100335ddf?s=48 thoeni
1
210
B3ace07412a5178ea778e7eec161fc0a?s=48 jcasabona
4
290

Transcript

  1. 1.

    Concurrency @gperetin Sunday, October 27, 13

  2. 2.

    Goran Peretin (@gperetin) Sunday, October 27, 13

  3. 3.

    Goran Peretin (@gperetin) Sunday, October 27, 13

  4. 4.

    Goran Peretin (@gperetin) Sunday, October 27, 13

  5. 5.

    Goran Peretin (@gperetin) Sunday, October 27, 13

  6. 6.

    Sadržaj Concurrency Parallelism Problemi/rješenja Sunday, October 27, 13

  7. 7.

    Sunday, October 27, 13

  8. 8.

    Demo time! Sunday, October 27, 13

  9. 9.

    Python3 & Ruby Sunday, October 27, 13

  10. 10.

    Concurrency Izvršavanje više taskova u nekom vremenskom periodu. Sunday, October

    27, 13
  11. 11.

    Parallelism Izvršavanje više taskova istovremeno. Sunday, October 27, 13

  12. 12.

    Concurrency != Parallelism Sunday, October 27, 13

  13. 13.

    Process-based concurrency task == proces Sunday, October 27, 13

  14. 14.

    Thread-based concurrency task == thread Sunday, October 27, 13

  15. 15.

    GIL (Ruby & Python) • Global Interpreter Lock • dva

    threada se ne mogu izvršavati istovremeno Sunday, October 27, 13
  16. 16.

    Ruby i Python ne mogu imati thread-based parallelism. Sunday, October

    27, 13
  17. 17.

    PHP Sunday, October 27, 13

  18. 18.

    PHP • PHP nema threadove • Nije thread-safe • PHP-FPM

    • Apache (mod_php) Sunday, October 27, 13
  19. 19.

    Java & .NET Sunday, October 27, 13

  20. 20.

    Java & .NET Sunday, October 27, 13

  21. 21.

    Problemi? • broj procesa i threadova • RAM Sunday, October

    27, 13
  22. 22.

    Blocking I/O OS pauzira thread koji napravi I/O request. Za

    izvršavanje drugog requesta treba nam novi thread. Sunday, October 27, 13
  23. 23.

    Rješenja? Non-blocking I/O Lightweight processes Sunday, October 27, 13

  24. 24.

    Non-blocking I/O Twisted, Tornado EventMachine Node.js Sunday, October 27, 13

  25. 25.

    Lightweight processes Erlang (actors) Go (goroutines) --- Python (greenlets) Ruby

    (fibers) Sunday, October 27, 13
  26. 26.

    Što da koristim? Sunday, October 27, 13

  27. 27.

    Hvala! Pitanja? Sunday, October 27, 13