{"id":41304,"date":"2025-06-01T07:20:54","date_gmt":"2025-05-31T23:20:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/41304.html"},"modified":"2025-06-01T07:20:54","modified_gmt":"2025-05-31T23:20:54","slug":"%e6%9c%8d%e5%8a%a1%e5%99%a8cpu-100%e7%9a%84%e9%97%ae%e9%a2%98%e7%9a%84%e6%8e%92%e6%9f%a5%e8%a7%a3%e5%86%b3%e4%b9%8b%e8%b7%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/41304.html","title":{"rendered":"\u670d\u52a1\u5668CPU 100%\u7684\u95ee\u9898\u7684\u6392\u67e5\u89e3\u51b3\u4e4b\u8def"},"content":{"rendered":"<p>\u7f51\u4e0a\u7684\u8bf8\u591a\u7b54\u6848\u6211\u4e0d\u592a\u80fd\u63a5\u53d7&#xff0c;\u4e0d\u591f\u843d\u5730\u3002<\/p>\n<p>\u81f3\u5c11\u4e5f\u5f97\u5f04\u6e05\u695a\u9762\u8bd5\u5b98\u6240\u8bf4\u7684\u201c\u670d\u52a1\u5668\u201d&#xff0c;\u5230\u5e95\u662f\u6570\u636e\u5e93\u670d\u52a1\u5668\u8fd8\u662f\u5e94\u7528\u670d\u52a1\u5668\u5427&#xff0c;\u8981\u77e5\u9053\u4e24\u8005\u7684\u6392\u67e5\u601d\u8def\u5b8c\u5168\u4e0d\u540c&#xff0c;\u4e14\u524d\u8005\u51fa\u73b0CPU 100%\u7684\u51e0\u7387\u66f4\u5927\u3002<\/p>\n<p>\u4e0b\u9762\u6211\u4eec\u5206\u522b\u4ece\u6570\u636e\u5e93\u670d\u52a1\u5668\u548c\u5e94\u7528\u670d\u52a1\u5668\u7684\u89d2\u5ea6&#xff0c;\u5206\u522b\u804a\u4e00\u4e0b\u6392\u67e5\u601d\u8def\u548c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<h3>\u6570\u636e\u5e93\u670d\u52a1\u5668<\/h3>\n<p>\u9020\u6210\u6570\u636e\u5e93\u670d\u52a1\u5668CPU 100%\u7684\u539f\u56e0\u5982\u4e0b&#xff1a;<\/p>\n<p>&#xff08;1&#xff09;\u6570\u636e\u5e93\u7684QPS\u6216TPS\u6574\u4f53\u63d0\u5347\u5bfc\u81f4&#xff1b;<\/p>\n<p>&#xff08;2&#xff09;\u65b0\u589e\u7684\u4e00\u4e2a\u6216\u8005\u51e0\u4e2a\u6162\u67e5\u8be2SQL\u5bfc\u81f4&#xff1b;<\/p>\n<p>&#xff08;3&#xff09;\u539f\u56e0&#xff08;1&#xff09;&#xff08;2&#xff09;\u5171\u540c\u5bfc\u81f4&#xff1b;<\/p>\n<p>\u76ee\u524d\u4e3b\u6d41\u7684\u7cfb\u7edf\u90e8\u7f72\u65b9\u5f0f\u90fd\u662f\u4e0a\u4e91\u7684&#xff0c;\u963f\u91cc\u4e91\u3001\u817e\u8baf\u4e91\u3001AWS\u7b49\u4e91\u5382\u5546\u90fd\u81ea\u5e26\u6570\u636e\u5e93\u76d1\u63a7&#xff0c;\u6211\u4eec\u76f4\u63a5\u7528\u5b83\u6765\u6392\u67e5\u5373\u53ef\u3002<\/p>\n<p>\u6392\u67e5\u601d\u8def\u5176\u5b9e\u5f88\u7b80\u5355&#xff0c;\u5bf9\u4e8e\u539f\u56e0&#xff08;1&#xff09;&#xff0c;\u6211\u4eec\u76f4\u63a5\u5728\u6570\u636e\u5e93\u76d1\u63a7\u4e0a\u770b\u5f53\u524d\u7684QPS\u548cTPS&#xff0c;\u5bf9\u6bd4\u4e8e\u6b63\u5e38\u65f6\u6bb5\u662f\u5426\u98d9\u9ad8\u5c31\u80fd\u770b\u51fa\u6765\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"292\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232051-683b8ed39c305.png\" width=\"1080\" \/><\/p>\n<p>\u5177\u4f53\u89e3\u51b3\u65b9\u6848\u7684\u8bdd&#xff0c;\u53ef\u4ee5\u5728\u4e1a\u52a1\u7cfb\u7edf\u4fa7\u8fdb\u884c\u9650\u6d41\u3001\u964d\u7ea7&#xff0c;\u5c06\u7cfb\u7edfQPS\u6216TPS\u964d\u4f4e\u5230\u6570\u636e\u5e93\u6240\u80fd\u627f\u8f7d\u7684\u91cf\u7ea7\u3002<\/p>\n<p>\u5bf9\u4e8e\u539f\u56e0&#xff08;2&#xff09;&#xff0c;\u6211\u4eec\u770b\u6162\u67e5\u8be2\u5217\u8868\u4e2d\u662f\u5426\u6709\u65b0\u589e\u6162\u67e5SQL&#xff0c;\u4e14\u8be5SQL\u6267\u884c\u65f6\u95f4\u8d85\u957f&#xff0c;\u6216\u6267\u884c\u6b21\u6570\u5f88\u591a\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a&#xff1a;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"570\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232051-683b8ed3d0d26.png\" width=\"1080\" \/><\/p>\n<p>\u5bf9\u4e8e\u8fd9\u79cd\u65b0\u589e\u6162\u67e5SQL&#xff0c;\u5f88\u6709\u53ef\u80fd\u662f\u6700\u8fd1\u7684\u7cfb\u7edf\u4e0a\u7ebf\u53d1\u5e03\u5bfc\u81f4\u7684&#xff0c;\u6211\u4eec\u53ef\u4ee5\u9a6c\u4e0a\u5bf9\u7cfb\u7edf\u8fdb\u884c\u56de\u6eda\u64cd\u4f5c&#xff0c;\u8fd9\u662f\u6700\u5e38\u89c1\u3001\u4e14\u89c1\u6548\u6700\u5feb\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u9664\u4e86\u56de\u6eda\u65b9\u6848&#xff0c;\u4e5f\u53ef\u4ee5\u5bf9\u8be5SQL\u6240\u5bf9\u5e94\u7684\u7cfb\u7edf\u529f\u80fd\u8fdb\u884c\u964d\u7ea7\u64cd\u4f5c&#xff0c;\u524d\u63d0\u662f\u8fd9\u4e2a\u7cfb\u7edf\u529f\u80fd\u4e3a\u975e\u6838\u5fc3\u529f\u80fd\u3002<\/p>\n<p>\u539f\u56e0&#xff08;3&#xff09;\u4e0d\u5fc5\u591a\u8bf4&#xff0c;\u4e0a\u8ff0\u4e24\u79cd\u6392\u67e5\u601d\u8def\u548c\u89e3\u51b3\u65b9\u6848\u4e00\u8d77\u7528\u5373\u53ef\u3002<\/p>\n<h3>\u5e94\u7528\u670d\u52a1\u5668<\/h3>\n<p>\u5e94\u7528\u670d\u52a1\u5668\u7684CPU 100%\u95ee\u9898\u6392\u67e5\u8d77\u6765\u8981\u590d\u6742\u4e00\u4e9b&#xff0c;\u4e0b\u9762\u6211\u6765\u4e00\u4e00\u62c6\u89e3\u4e0b\u6b65\u9aa4\u3002<\/p>\n<h4>\u95ee\u9898\u6392\u67e5\u6b65\u9aa4<\/h4>\n<p>&#xff08;1&#xff09;\u5148\u901atop\u547d\u4ee4\u5b9a\u4f4d\u51fa\u6d88\u8017CPU\u6700\u9ad8\u7684\u8fdb\u7a0b<\/p>\n<p>css<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>top <\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"299\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232052-683b8ed42a83a.jpg\" width=\"534\" \/><\/p>\n<p>\u56fe\u7247\u6765\u81ea\u7f51\u7edc&#xff0c;\u4fb5\u5220<\/p>\n<p>&#xff08;2&#xff09;\u7ee7\u7eed\u901a\u8fc7top\u547d\u4ee4\u5b9a\u4f4d\u51fa\u6d88\u8017CPU\u6700\u9ad8\u7684\u7ebf\u7a0b<\/p>\n<p>css<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>top -H -p &lt;PID&gt; # \u663e\u793a\u76ee\u6807\u8fdb\u7a0b\u4e0b\u6240\u6709\u7ebf\u7a0b <\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"299\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232052-683b8ed45dd4a.jpg\" width=\"534\" \/><\/p>\n<p>\u56fe\u7247\u6765\u81ea\u7f51\u7edc&#xff0c;\u4fb5\u5220<\/p>\n<p>&#xff08;3&#xff09;\u5c06\u7ebf\u7a0b\u7684TID\u8f6c\u6362\u4e3a16\u8fdb\u5236&#xff0c;\u4ee5\u5907\u540e\u7528<\/p>\n<p>perl<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>printf &#034;%x\\\\n&#034; &lt;TID&gt; <\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"299\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232052-683b8ed4909b8.jpg\" width=\"534\" \/><\/p>\n<p>\u56fe\u7247\u6765\u81ea\u7f51\u7edc&#xff0c;\u4fb5\u5220<\/p>\n<p>&#xff08;4&#xff09;\u901a\u8fc7jstack &#043; gerp\u7ec4\u5408\u547d\u4ee4&#xff0c;\u67e5\u627e\u76ee\u6807\u7ebf\u7a0b\u7684\u5806\u6808\u4fe1\u606f<\/p>\n<p>xml<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>jstack &lt;PID&gt; | grep &lt;TID&gt; <\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"299\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250531232052-683b8ed4c358a.jpg\" width=\"534\" \/><\/p>\n<p>\u56fe\u7247\u6765\u81ea\u7f51\u7edc&#xff0c;\u4fb5\u5220<\/p>\n<p>\u4e5f\u53ef\u4ee5\u5c06\u5176\u8f93\u51fa\u4e3a\u6587\u4ef6<\/p>\n<p>xml<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>jstack &lt;PID&gt; | grep &lt;TID&gt; -A50 &gt;&gt; thread_log.txt <\/p>\n<p>\u63a5\u4e0b\u6765\u6839\u636e\u67e5\u627e\u5230\u7684\u7ebf\u7a0b\u5806\u6808\u4fe1\u606f&#xff0c;\u6211\u4eec\u5c31\u53ef\u4ee5\u8fdb\u884c\u4e00\u8f6e\u95ee\u9898\u5b9a\u4f4d\u5206\u6790\u4e86\u3002<\/p>\n<h4>\u95ee\u9898\u5b9a\u4f4d\u601d\u8def<\/h4>\n<p>\u63a5\u4e0b\u6765\u8bf4\u51e0\u4e2a\u6211\u591a\u5e74\u79ef\u7d2f\u7684&#xff0c;\u53ef\u4ee5\u5e2e\u52a9\u5927\u5bb6\u5feb\u901f\u5b9a\u4f4dCPU 100%\u95ee\u9898\u7684\u601d\u8def\u3002<\/p>\n<p>&#xff08;1&#xff09;\u5f53\u7ebf\u7a0b\u5904\u4e8eRUNNABLE\u72b6\u6001&#xff0c;\u53ef\u80fd\u662f\u4ee3\u7801\u4e2d\u51fa\u73b0\u4e86\u8ba1\u7b97\u5bc6\u96c6\u578b\u7684\u4efb\u52a1&#xff0c;\u6216\u662f\u5faa\u73af\u3001\u9012\u5f52\u6b21\u6570\u8fc7\u591a&#xff0c;\u751a\u81f3\u662f\u51fa\u73b0\u4e86\u6b7b\u5faa\u73af\u7684\u60c5\u51b5\u3002<\/p>\n<p>&#xff08;2&#xff09;\u5f53\u7ebf\u7a0b\u540d\u4e3aGC Task Thread&#xff0c;\u53ef\u80fd\u51fa\u73b0\u4e86\u9891\u7e41GC\u7684\u60c5\u51b5&#xff0c;\u9700\u8981\u7ed3\u5408GC\u65e5\u5fd7\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<p>&#xff08;3&#xff09;\u5f53\u5927\u91cf\u7ebf\u7a0b\u5904\u4e8eBLOCKED\u72b6\u6001&#xff0c;\u53ef\u80fd\u662f\u4ee3\u7801\u4e2d\u51fa\u73b0\u4e86\u9501\u7ade\u4e89\u7684\u60c5\u51b5\u3002<\/p>\n<p>&#xff08;4&#xff09;\u5982\u679cCPU\u5229\u7528\u7387\u5f88\u9ad8\u7684\u7ebf\u7a0b\u4e00\u76f4\u662f\u540c\u4e00\u4e2a&#xff0c;\u76f4\u63a5\u5bf9\u5176\u8fdb\u884c\u5206\u6790\u5373\u53ef&#xff0c;\u53cd\u4e4b&#xff0c;CPU\u5229\u7528\u7387\u504f\u9ad8\u7684\u7ebf\u7a0b\u4e0d\u65ad\u53d8\u5316&#xff0c;\u5219\u5f88\u6709\u53ef\u80fd\u662f\u7ebf\u7a0b\u521b\u5efa\u8fc7\u591a\u5bfc\u81f4\u3002<\/p>\n<p>&#xff08;5&#xff09;\u6211\u4eec\u5c1d\u8bd5\u7528\u201cdeadlock\u201d\u4f5c\u4e3a\u5173\u952e\u5b57\u8fdb\u884c\u641c\u7d22&#xff0c;\u82e5\u641c\u7d22\u5230\u76f8\u5173\u4fe1\u606f&#xff0c;\u6392\u67e5\u4e00\u4e0b\u4ee3\u7801\u4e2d\u7684\u6b7b\u9501\u95ee\u9898\u3002<\/p>\n<h4>\u95ee\u9898\u89e3\u51b3\u601d\u8def<\/h4>\n<p>\u5176\u5b9e\u5b9a\u4f4d\u5230\u95ee\u9898\u4e4b\u540e&#xff0c;\u63a5\u4e0b\u6765\u7684\u89e3\u51b3\u65b9\u6848\u5c31\u6bd4\u8f83\u5bb9\u6613\u505a\u4e86\u3002<\/p>\n<p>&#xff08;1&#xff09;\u5bf9\u4e8e\u8ba1\u7b97\u5bc6\u96c6\u578b\u7684\u4efb\u52a1&#xff0c;\u6211\u4eec\u53ef\u4ee5\u5148\u4ece\u4ee3\u7801\u7684\u89d2\u5ea6\u5165\u624b&#xff0c;\u770b\u770b\u662f\u5426\u6709\u4f18\u5316\u7a7a\u95f4&#xff0c;\u6bd4\u5982&#xff1a;\u51cf\u5c11\u6570\u636e\u7684\u8ba1\u7b97\u91cf&#xff0c;\u6216\u8005\u6362\u4e00\u79cd\u66f4\u7701CPU\u7684\u7b97\u6cd5\u7b49\u3002<\/p>\n<p>\u5982\u679c\u5728\u4ee3\u7801\u5c42\u9762\u5df2\u7ecf\u4f18\u5316\u5230\u6781\u81f4\u4e86&#xff0c;\u90a3\u53ef\u4ee5\u76f4\u63a5\u9009\u62e9\u4ece\u786c\u4ef6\u5c42\u9762\u8fdb\u884c\u6269\u5bb9&#xff0c;\u5747\u644a\u8ba1\u7b97\u538b\u529b\u3002<\/p>\n<p>&#xff08;2&#xff09;\u5bf9\u4e8e\u4ee3\u7801\u4e2d\u7684\u6b7b\u5faa\u73af\u95ee\u9898&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0\u53ef\u4e2d\u65ad\u6807\u5fd7\u4f4d\u3001\u9650\u5236\u6700\u5927\u6267\u884c\u6b21\u6570\u548cCPU\u8d44\u6e90\u63a7\u5236\u7b49\u65b9\u5f0f&#xff0c;\u964d\u4f4eCPU\u4f7f\u7528\u7387\u3002<\/p>\n<p>\u53ef\u4e2d\u65ad\u6807\u5fd7\u4f4d\u548cCPU\u8d44\u6e90\u63a7\u5236&#xff0c;\u4ee3\u7801\u5982\u4e0b&#xff1a;<\/p>\n<p>java<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>\/\/ \u4f7f\u7528 volatile \u4fdd\u8bc1\u53ef\u89c1\u6027 private volatile boolean running &#061; true; public void startLoop() { new Thread(() -&gt; { while (running) { \/\/ \u4e1a\u52a1\u903b\u8f91 processData(); try { \/\/ \u907f\u514d\u5fd9\u7b49\u5f85&#xff0c;\u9002\u5f53\u4f11\u7720&#xff0c;\u964d\u4f4eCPU\u4f7f\u7528\u7387 Thread.sleep(100); } catch (InterruptedException e) { \/\/ \u6062\u590d\u4e2d\u65ad\u72b6\u6001 Thread.currentThread().interrupt(); break; } } }).start(); } \/\/ \u5b89\u5168\u7ec8\u6b62\u5faa\u73af public void stopLoop() { running &#061; false; } <\/p>\n<p>\u9650\u5236\u6700\u5927\u6267\u884c\u6b21\u6570&#xff0c;\u4ee3\u7801\u5982\u4e0b&#xff1a;<\/p>\n<p>java<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>final int MAX_ITERATIONS &#061; 1000; int count &#061; 0; while (count&#043;&#043; &lt; MAX_ITERATIONS &amp;&amp; !isTaskDone()) { executeStep(); } if (count &gt;&#061; MAX_ITERATIONS) { logger.warn(&#034;\u5faa\u73af\u8fbe\u5230\u6700\u5927\u6b21\u6570&#xff0c;\u5f3a\u5236\u9000\u51fa&#034;); } <\/p>\n<p>&#xff08;3&#xff09;\u5bf9\u4e8e\u9891\u7e41GC\u7684\u95ee\u9898&#xff0c;\u9700\u8981\u7ed3\u5408GC\u76f8\u5173\u5de5\u5177\u4e00\u8d77\u8fdb\u884c\u6392\u67e5&#xff0c;\u4e00\u822c\u662f\u7531\u4e8e\u5806\u5185\u5b58\u8bbe\u7f6e\u4e0d\u5f53\u3001\u5185\u5b58\u6cc4\u9732\u3001\u5927\u5bf9\u8c61\u5206\u914d\u7b49\u539f\u56e0\u3002<\/p>\n<p>&#xff08;4&#xff09;\u5bf9\u4e8e\u4ee3\u7801\u4e2d\u9501\u7ade\u4e89\u7684\u95ee\u9898&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u7f29\u5c0f\u9501\u7c92\u5ea6\u3001\u4f7f\u7528\u65e0\u9501\u5316\u6570\u636e\u7ed3\u6784\u3001\u4f7f\u7528Lock\u4e2d\u7684tryLock()\u3001 tryLock(long time, TimeUnit unit)\u7b49\u975e\u6301\u7eed\u963b\u585e\u7684\u65b9\u5f0f\u8fdb\u884c\u89e3\u51b3\u3002<\/p>\n<p>tryLock(long time, TimeUnit unit)\u8d85\u65f6\u4e2d\u65ad\u7684\u65b9\u5f0f&#xff0c;\u4ee3\u7801\u5982\u4e0b&#xff1a;<\/p>\n<p>java<\/p>\n<p>\u4f53\u9a8cAI\u4ee3\u7801\u52a9\u624b<\/p>\n<p>\u4ee3\u7801\u89e3\u8bfb<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>import java.util.concurrent.TimeUnit; import java.util.concurrent.locks.ReentrantLock; public class LockExample { private final ReentrantLock lock &#061; new ReentrantLock(); public void execute() { \/\/ \u5c1d\u8bd5\u83b7\u53d6\u9501&#xff0c;\u6700\u591a\u7b49\u5f85100\u6beb\u79d2 if (lock.tryLock(100, TimeUnit.MILLISECONDS)) { try { \/\/ \u5728\u6b64\u5904\u6267\u884c\u83b7\u53d6\u9501\u540e\u7684\u4e1a\u52a1\u4ee3\u7801\u903b\u8f91 System.out.println(&#034;Lock acquired, work performed here.&#034;); } catch (Exception e) { \/\/ \u5904\u7406\u5f02\u5e38 e.printStackTrace(); } finally { \/\/ \u786e\u4fdd\u91ca\u653e\u9501 lock.unlock(); } } else { \/\/ \u5728\u6b64\u5904\u6267\u884c\u6ca1\u6709\u83b7\u53d6\u9501\u7684\u4e1a\u52a1\u4ee3\u7801\u903b\u8f91 System.out.println(&#034;Could not acquire lock, work performed here.&#034;); } } public static void main(String[] args) { LockExample example &#061; new LockExample(); example.execute(); } } <\/p>\n<p>&#xff08;5&#xff09;\u5bf9\u4e8e\u4ee3\u7801\u4e2d\u7684\u6b7b\u9501\u95ee\u9898&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u987a\u5e8f\u52a0\u9501\u7684\u65b9\u5f0f\u89e3\u51b3\u3002<\/p>\n<p>\u9664\u6b64\u4e4b\u5916&#xff0c;\u4e5f\u53ef\u4ee5\u4f7f\u7528\u65e0\u9501\u5316\u6570\u636e\u7ed3\u6784\u3001\u4f7f\u7528Lock\u4e2d\u7684tryLock()\u3001tryLock(long time, TimeUnit 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unit)\u7b49\u975e\u6301\u7eed\u963b\u585e\u7684\u65b9\u5f0f\u8fdb\u884c\u89e3\u51b3\u3002\uff084\uff09\u5982\u679cCPU\u5229\u7528\u7387\u5f88\u9ad8\u7684\u7ebf\u7a0b\u4e00\u76f4\u662f\u540c\u4e00\u4e2a\uff0c\u76f4\u63a5\u5bf9\u5176\u8fdb\u884c\u5206\u6790\u5373\u53ef\uff0c\u53cd\u4e4b\uff0cCPU\u5229\u7528\u7387\u504f\u9ad8\u7684\u7ebf\u7a0b\u4e0d\u65ad\u53d8\u5316\uff0c\u5219\u5f88\u6709\u53ef\u80fd\u662f\u7ebf\u7a0b\u521b\u5efa\u8fc7\u591a\u5bfc\u81f4\u3002\uff081\uff09\u5bf9\u4e8e\u8ba1\u7b97\u5bc6\u96c6\u578b\u7684\u4efb\u52a1\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u4ece\u4ee3\u7801\u7684\u89d2\u5ea6\u5165\u624b\uff0c\u770b\u770b\u662f\u5426\u6709\u4f18\u5316\u7a7a\u95f4\uff0c\u6bd4\u5982\uff1a\u51cf\u5c11\u6570\u636e\u7684\u8ba1\u7b97\u91cf\uff0c\u6216\u8005\u6362\u4e00\u79cd\u66f4\u7701CPU\u7684\u7b97\u6cd5\u7b49\u3002<\/p>\n","protected":false},"author":2,"featured_media":41298,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,44],"topic":[],"class_list":["post-41304","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-43","tag-44"],"yoast_head":"<!-- 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