第二周 Concurrency Concurrency (並行) vs. Parallelism (平行) > concurrency : 一個時間單位裡只能做一件事,但攬了很多事做。 > Parallelism : 一個時間單位能做很多事。 Condition variable: 兩個thread,A要等變數變為true,才能繼續執行(一般的做法是A會不斷地check此變數,因而造成效率過低。),而此法是當B thread 將變數設為true後,再使用signal 喚醒 等待中的A。 參考資料 [Toward Concurrency](https://hackmd.io/s/H10MXXoT)
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