Question

我试图按照这个问题High CPU usage in Eclipse when idle找出为什么Eclipse会成为这样一个CPU老鼠

以下是消耗两位数处理器份额的线程，有人可以理解它们吗？一个吃约80％的线程似乎与工作台有关，但其余部分都是个谜。

我确实有一个不错的proc和SSD驱动器，并且大部分时间eclipse运行顺利。

顺便说一句。执行ps和kill之间有一个短暂的延迟，这可能解释了它，但我不明白等待线程如何使用超过50％的cpu。

"Worker-6" prio=10 tid=0x00007fe9e0036000 nid=0x1caf in Object.wait() [0x00007fe9c2269000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor) 16.8%
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00007fea3fa6d1a0> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.sleep(WorkerPool.java:188)
        - locked <0x00007fea3fa6d1a0> (a org.eclipse.core.internal.jobs.WorkerPool)
        at org.eclipse.core.internal.jobs.WorkerPool.startJob(WorkerPool.java:220)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:50)


"org.eclipse.jdt.internal.ui.text.JavaReconciler" daemon prio=10 tid=0x00007fea94e3d800 nid=0x1ca1 in Object.wait() [0x00007fe9d65e4000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor) 57.4%
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00007fea39123a28> (a org.eclipse.jface.text.reconciler.DirtyRegionQueue)
        at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:179)
        - locked <0x00007fea39123a28> (a org.eclipse.jface.text.reconciler.DirtyRegionQueue)

"Java indexing" daemon prio=10 tid=0x00007fea9510f000 nid=0x1c9d in Object.wait() [0x00007fe9fc7bf000]
   java.lang.Thread.State: WAITING (on object monitor) 31.9%
        at java.lang.Object.wait(Native Method)
        - waiting on <0x00007fea3adbe2f8> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
        at java.lang.Object.wait(Object.java:485)
        at org.eclipse.jdt.internal.core.search.processing.JobManager.run(JobManager.java:382)
        - locked <0x00007fea3adbe2f8> (a org.eclipse.jdt.internal.core.search.indexing.IndexManager)
        at java.lang.Thread.run(Thread.java:662)

"C2 CompilerThread1" daemon prio=10 tid=0x00007fea942fd800 nid=0x1c85 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE 85.6%

"C2 CompilerThread0" daemon prio=10 tid=0x00007fea942fb000 nid=0x1c84 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE 85.6%

"main" prio=10 tid=0x00007fea94009800 nid=0x1c73 runnable [0x00007fea9b93a000]
   java.lang.Thread.State: RUNNABLE 72.7%
        at org.eclipse.swt.internal.gtk.OS.Call(Native Method)
        at org.eclipse.swt.widgets.Display.sleep(Display.java:4233)
        at org.eclipse.ui.application.WorkbenchAdvisor.eventLoopIdle(WorkbenchAdvisor.java:364)
        at org.eclipse.ui.internal.ide.application.IDEWorkbenchAdvisor.eventLoopIdle(IDEWorkbenchAdvisor.java:917)
        at org.eclipse.ui.internal.Workbench$3.eventLoopIdle(Workbench.java:487)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1117)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
        at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
        at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1426)

Answer 1

当您使用术语＆＃34;等待线程＆＃34;计算机假定线程正在等待某事。因此，计算机会不断检查这些线程是否要启动或结束。

因此，它使用50％的CPU内存。

为什么日食无缘无故地占用了几乎所有的CPU

1 个答案: