Java 15 面接の質問と回答
Question: What Is Biased Locking in Java 15?Answer:Biased locking is an optimization of thread synchronization aimed at reducing synchronization overhead when the same monitor is repeatedly acquired by the same thread (i.e., when the same thread repeatedly calls code synchronized on the same object). In the example above, this means that the first time the add() method is called, the vector monitor is biased to the thread in which the test method is executed. This bias speeds up the monitor's acquisition in the following 9,999,999 add() method calls. |
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