“Waiting on Condition” 状态指的是一个线程在等待某个条件满足时,不再占用 CPU 资源。该状态通常发生在调用Object.wait()方法或者Condition.await()的情况。此时,线程不仅不运行,还会被移动到一个等待队列中,直到其他线程调用notify()或notifyAll()来唤醒它们。这样的机制能够有效地管理线程间的协作。 publicclass...
javacore 很多线程 waiting on condition java多线程wait用法,简介本文讲解Java中wait()、notify(),通过一个标准的使用实例,来讨论下这两个方法的作用和使用时注意点,这两个方法被提取到顶级父类Object对象中,地位等同于toString()方法,所以本文带你从零开始搞懂它们
LockSupport.park A thread in the waiting state is waiting for another thread to perform a particular action. For example, a thread that has called Object.wait() on an object is waiting for another thread to call Object.notify() or Object.notifyAll() on that object. A thread that has cal...
最后找到最耗cpu的线程堆栈如下: "operate-api-1-thread-6" #1522 prio=5 os\_prio=0 tid=0x00007f4b7006f800 nid=0x1b67c waiting on condition \[0x00007f4ac8c4a000\] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000006c1082...
// Else retry } catch (InterruptedException ie) { // On interruption, re-check runState...
A thread in the waiting state is waiting for another thread to perform a particular action. For example, a thread that has called Object.wait() on an object is waiting for another thread to call Object.notify() or Object.notifyAll() on that object. A thread that has called Thread.join...
A thread in the waiting state is waiting for another thread to perform a particular action. For example, a thread that has called Object.wait() on an object is waiting for another thread to call Object.notify() or Object.notifyAll() on that object. A thread that has called Thread.join...
首先,为什么要 wait 呢?简单讲,是因为条件(condition)不满足。那么什么是条件呢?为方便理解,我们设想一个场景: 有一节列车车厢,有很多乘客,每个乘客相当于一个线程;里面有个厕所,这是一个公共资源,且一次只允许一个线程进去访问(毕竟没人希望在上厕所期间还与他人共享~)。
"PARKED-THREAD" #11 prio=5 os_prio=0 tid=0x000000001e226800 nid=0x43cc waiting on condition [0x000000001e95f000] java.lang.Thread.State: WAITING (parking) 1. 2. LockSupport 如之前所述,最优雅的方式是通过LockSupport类的相关方法来暂停、启动线程。该类是Unsafe的包装类, 对线程的操作底层委托Un...
线程状态为“waiting on condition” 说明它在等待另一个条件的发生,来把自己唤醒,或者干脆它是调用了 sleep(N)。 此时线程状态大致为以下几种: java.lang.Thread.State: WAITING (parking):一直等那个条件发生; java.lang.Thread.State: TIMED_WAITING (parking或sleeping):定时的,那个条件不到来,也将定时唤醒自...