Java 21의 Virtual Threads 소개 [48p 슬라이드]

• Virtual Threads 개요
  • Virtual Threads (Loom project) 란
  • Platform Threads vs Virtual Threads - Blocking ?
  • Platform Threads 작동 방식
  • Virtual Threads 작동 방식
• Rules & Best practices
  • Rule 1 - Create Threads
  • Rule 2 - Do Not use CompletableFuture
  • Rule 2 - Do use Virtual Threads
  • Rule 3 - Do not use Thread Pool
  • Rule 3 - Do use newThreadPerTaskExecutor
  • Rule 4 - Do not use FixedThreadPool for concurrency
  • Rule 4 - Do use Semaphore for Concurrency
  • Rule 5 - Do use ScopedValue
  • Rule 6 - Do use ReentranceLock instead of synchronized
  • Rule 7 - Do Structured Concurrency
  • Rule 8 - Test Virtual Threads
• Spring Boot with Virtual Threads
  • Spring Boot MVC with Virtual Threads
  • Spring Boot MVC Async Tasks
  • RestController use Virtual Threads
• Legacy Code 변경
  • 기존 시스템에 Virtual Threads 적용하기

[click]

Jdk24에서 synchronized가 더이상 pinning을 발생시키지 않도록 수정되어서 rule 6도 다음 LTS 쯤에는 필요없을겁니다.

[carnoxen]

Scoped Value, Structured Concurrency는 아직 "미리 보기" 단계라서 Virtual Thread가 상용화되기까진 좀 오래 걸릴 것 같습니다.