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JS Fest 2019. Артур Торосян. V8 - взгляд на асинхронность и работу с ОС изнутри
- 1. JAVASCRIPT: from Back-end to Front-end PROFESSIONAL JS CONFERENCE
- 2. PROFESSIONAL JS CONFERENCE 5-6 APRIL ‘19 KIEV, UKRAINE Artur Torosian V8 - view on asynchrony and working with the OS from the inside
- 11. GOOGLE V8
- 14. EVENT LOOP
- 15. Event queue Stuff to do Stuff to do Stuff to do API Stuff to do Stuff to do Stuff to do
- 16. Black boxEvent queue Stuff to do Stuff to do Stuff to do Stuff to do Stuff to do Stuff to do API
- 17. Event Loop Stuff to do Event queue Stuff to do Stuff to do Stuff to doStuff to do Stuff to do Stuff to do API Black box
- 18. Event Loop Stuff to do Event queue Stuff to do Stuff to do Stuff to doStuff to do Stuff to do Stuff to do API Callback queue Black box
- 19. Event Loop Stuff to do Event queue Stuff to do Stuff to do Stuff to doStuff to do Stuff to do Stuff to do API Callback queue Callback Black box CallbackCallback Callback CallbackCallback
- 20. Event Loop Stuff to do Event queue Stuff to do Stuff to do Stuff to doStuff to do Stuff to do Stuff to do API Callback queue Callback Black box CallbackCallback Callback CallbackCallback
- 21. Event Loop Stuff to do Event queue Stuff to do Stuff to do Stuff to do Stuff to do Stuff to doStuff to do API Callback queue Callback Black box CallbackCallback Callback Callback Callback Stuff to do Stuff to do
- 22. Black box LIBUV (aka Unicorn Velociraptor Library)
- 25. Black box
- 27. - fs - crypto - DNS - Zlib
- 29. Javascript
- 31. Javascript Main Thread C++ object code Stuff to do Threadpool
- 32. Threadpool Javascript Main Thread C++ object code Stuff to do Return to JS Stuff to do is processing Stuff is done
- 33. Threadpool Javascript Main Thread C++ object code Stuff to do Return to JS Stuff is doneStuff is wrapping Callback
- 34. Javascript
- 35. Threadpool Javascript Main Thread C++ Return to JS Stuff to do is processing Stuff is done object code Stuff to do Callback Stuff is wrapping
- 38. Group 1: Hashes 0 - 3 Time: <800 Group 2: Hashes 4 - 7 Time: <1600 Group 3: Hashes 8 - 9 Time: <2400
- 43. Group 1: Hashes 0 - 7 Time: <1200 Group 2: Hashes 8-9 Time: <2000
- 45. Network
- 47. RequestRequest Request Request Request Request Request Request Request Request - Node.js v0.8 - Ubuntu 12.04 LTS - Intel Core i7-2600 Quad - 16gb RAM
- 48. RequestRequest Request Request Request Request Request Request Request Request - Node.js v0.8 - Ubuntu 12.04 LTS - Intel Core i7-2600 Quad - 16gb RAM Successful handling of 1M requests
- 50. Crossplatform
- 52. - child_process - cluster - fs
- 53. Worker threads
- 55. Node.js 5 threads V8 4 threads Event Loop 1 thread 10 threads Thread pool
- 56. Node.js 5 threads V8 4 threads Event Loop 1 thread 6 threads Thread pool
- 58. New process will create their own V8 instance, Event Loop and Thread pool. Huge memory usage. Cluster
- 60. Only for IO - plugins and fs, crypto, dns and zlib modules. Threadpool
- 62. Worker threads Memory, performance and stuff like that. Do not help with async tasks, helps only with blocking operations.
- 64. Javascript Main Thread C++ Threadpool Node Javascript Main Thread C++ Threadpool Node Javascript Main Thread C++ Threadpool Node
- 68. Javascript Main Thread C++Worker 1 Worker 2 Node