The Silent Killers of Go Concurrency: Mutexes, Semaphores, and Goroutine Leaks
The article discusses common concurrency issues in Go programming, particularly focusing on mutexes and semaphores. It highlights how improper use of locks can lead to performance bottlenecks, making concurrent systems behave like single-threaded applications. The author provides examples and solutions to improve concurrency management in production environments.
- ▪Concurrency problems in Go often arise from misunderstanding bottlenecks rather than from a lack of concurrency.
- ▪Excessive locking and holding locks for too long can create performance issues, even if CPU usage appears normal.
- ▪Separating shared-state mutation from slow external operations can significantly improve performance in concurrent applications.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 161199) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } amir Posted on May 24 The Silent Killers of Go Concurrency: Mutexes, Semaphores, and Goroutine Leaks #go #concurrency #performance #backend Go makes concurrency look simple. You write: go func() { // do something concurrently }() Enter fullscreen mode Exit fullscreen mode And suddenly your code is running in another goroutine. That simplicity is one of the reasons I like Go so much.
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