Java的100％CPU使用率_java

概述Java的100％CPU使用率

我面临一个随机发生的问题，导致100％的cpu使用率。我find了实际使用cpu的线程的PID。

Main PID: 22777 Thread PID: 22793

从top -H -u user

PID USER PR NI VIRT RES SHR S %cpu %MEM TIME+ COMMAND 22793 user 25 0 2640m 16m 14m R 98.8 0.4 5134:31 java 22480 user 25 0 7920 364 360 S 0.0 0.0 0:00.00 cat 22777 user 18 0 2640m 16m 14m S 0.0 0.4 0:00.00 java 22779 user 18 0 2640m 16m 14m S 0.0 0.4 0:03.34 java 22780 user 15 0 2640m 16m 14m S 0.0 0.4 0:46.76 java 22781 user 15 0 2640m 16m 14m S 0.0 0.4 0:00.49 java {...}

从Jstack -J-d64 -m 22777

{...} ----------------- 22793 ----------------- 0x00002b9edcd4c5a0 _ZN12DependencIEs25find_finalizable_subclassEP5Klass + 0x150 0x00002b9edcc5a8ee _ZN15ciInstanceKlass24has_finalizable_subclassEv + 0xbe 0x00002b9edcb9f83e _ZN12GraphBuilder23call_register_finalizerEv + 0x9e 0x00002b9edcba62a5 _ZN12GraphBuilder13method_returnEP11Instruction + 0x295 0x00002b9edcbac85f _ZN12GraphBuilder27iterate_bytecodes_for_blockEi + 0x6cf 0x00002b9edcba9c4b _ZN12GraphBuilder18iterate_all_blocksEb + 0x14b 0x00002b9edcbaa5e6 _ZN12GraphBuilder15try_inline_fullEP8ciMethodbn9Bytecodes4CodeEP11Instruction + 0x996 0x00002b9edcbaa7df _ZN12GraphBuilder10try_inlineEP8ciMethodbn9Bytecodes4CodeEP11Instruction + 0x11f 0x00002b9edcbab912 _ZN12GraphBuilder6invokeEN9Bytecodes4CodeE + 0xbb2 0x00002b9edcbac83d _ZN12GraphBuilder27iterate_bytecodes_for_blockEi + 0x6ad 0x00002b9edcba9c4b _ZN12GraphBuilder18iterate_all_blocksEb + 0x14b 0x00002b9edcbaa5e6 _ZN12GraphBuilder15try_inline_fullEP8ciMethodbn9Bytecodes4CodeEP11Instruction + 0x996 0x00002b9edcbaa7df _ZN12GraphBuilder10try_inlineEP8ciMethodbn9Bytecodes4CodeEP11Instruction + 0x11f 0x00002b9edcbab912 _ZN12GraphBuilder6invokeEN9Bytecodes4CodeE + 0xbb2 0x00002b9edcbac83d _ZN12GraphBuilder27iterate_bytecodes_for_blockEi + 0x6ad 0x00002b9edcba9bf2 _ZN12GraphBuilder18iterate_all_blocksEb + 0xf2 0x00002b9edcbae7a7 _ZN12GraphBuilderC1EP11CompilationP7irscope + 0x527 0x00002b9edcbb7127 _ZN7irscopeC1EP11CompilationPS_iP8ciMethodib + 0x1e7 0x00002b9edcbb723f _ZN2IRC1EP11CompilationP8ciMethodi + 0x9f 0x00002b9edcb9625b _ZN11Compilation9build_hirEv + 0xdb 0x00002b9edcb9661e _ZN11Compilation19compile_java_methodEv + 0x6e 0x00002b9edcb9674e _ZN11Compilation14compile_methodEv + 0x4e 0x00002b9edcb96abe _ZN11CompilationC1EP16AbstractCompilerP5cIEnvP8ciMethodiP10BufferBlob + 0x25e 0x00002b9edcb97869 _ZN8Compiler14compile_methodEP5cIEnvP8ciMethodi + 0xa9 0x00002b9edccea43a _ZN13Compilebroker25invoke_compiler_on_methodEP11CompileTask + 0xc9a 0x00002b9edcceb3e6 _ZN13Compilebroker20compiler_thread_loopEv + 0x5d6 0x00002b9edd29ebcf _ZN10JavaThread17thread_main_innerEv + 0xdf 0x00002b9edd29ecfc _ZN10JavaThread3runEv + 0x11c 0x00002b9edd153048 _ZL10java_startP6Thread + 0x108 {...}

编译时看起来像是一个JVM错误。

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