"C2 CompilerThread0" #5 daemon prio=9 os_prio=0 tid=0x00007f20c80b3800 nid=0x57c0 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE
但是这样也有一个问题,就是编译的那段时间,耗费CPU。而C2 CompilerThread,正是JIT中的一层优化(共计五层,C2 是第五层)。所以,罪魁祸首找到了。 5. 尝试解决 解释器和编译器的关系可以如下所示: 就像上面说的,解释器启动快,但是执行慢。而编译器又分为以下五个层次。 第0 层:程序解释执行,默认开启性能监控功...
the problem was with Java 11.0.12, then we decided to upgrade to 11.0.16 (we did not update to the latest one, because it does not support some types of encryption). Supposedly the problem is in C2 CompilerThread0.
目光转向C2编译线程(C2 CompilerThread),它最开始阻塞在编译任务队列,在发现编译任务后唤醒,接着经过如代码清单9-1所示的调用链后开始编译: 代码清单9-1 C2调用链 代码语言:javascript 代码运行次数:0 运行 AI代码解释 JavaThread::thread_main_entry()->compiler_thread_entry()->CompilerBroker::compiler_thread_...
C2Compiler::compile_method(ciEnv*, ciMethod*, int, DirectiveSet*)+0x175 V [libjvm.so+0x91b9c0] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xd60 V [libjvm.so+0x91c788] CompileBroker::compiler_thread_loop()+0x6c8 V [libjvm.so+0x16ca5cc] JavaThread::thread_main_inner(...
jstack: Java占用高CPU分析之- C2 Compiler Thread https://blog.csdn.net/chenxiusheng/article/details/74007750 规格严格-功夫到家 粉丝-152关注 -971 +加关注
--- T H R E A D --- Current thread (0x0000015ab9877000): JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=22420, stack(0x000000286bf00000,0x000000286c000000)] Current CompileTask: C2:9699782 41389 4 javax.swing.plaf.basic.BasicSplitPaneUI$BasicHorizontalLayoutManager::...
Java crash in C2 compiler thread: Raw # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (loopnode.hpp:628), pid=4252, tid=0x00007f4d78ee6700 # guarantee(n != NULL) failed: No Node. # # JRE version: OpenJDK Runtime Environment (8.0_322-b06...
近期在进行日常巡检时发现,线上部分应用服务器的CPU突然比以往高出很多,经过登录机器排查确认是C2 CompilerThread9线程始终长时间运行消耗了CPU。 排查步骤在上篇博文有记录总结,地址:排查CPU异常步骤_u012538947的专栏 异常线程的堆栈如下: "C2 CompilerThread9" #48 daemon prio=9 os_prio=0 tid=0x00007f45f0b80...
public static void startProblemThread() { new Thread(new MyRun()).start(); } public static class MyRun implements Runnable { @Override public void run() { System.out.println("Problem start"); for (int i = 0; i < 100000000; i++) { ...