{"id":132392,"date":"2022-06-05T14:11:53","date_gmt":"2022-06-05T06:11:53","guid":{"rendered":"http:\/\/www.idc.net\/help\/132392\/"},"modified":"2022-06-05T14:11:53","modified_gmt":"2022-06-05T06:11:53","slug":"linux-watchdog%e7%9a%84%e7%ae%80%e5%8d%95%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95-linux-watchdog%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/132392\/","title":{"rendered":"Linux watchdog\u7684\u7b80\u5355\u4f7f\u7528\u65b9\u6cd5 (linux watchdog\u4f7f\u7528)"},"content":{"rendered":"<p>Linux Watchdog\u7684\u7b80\u5355\u4f7f\u7528\u65b9\u6cd5<\/p>\n<p>\u5f53\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u9047\u5230\u5d29\u6e83\u65f6\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u6211\u4eec\u9700\u8981\u624b\u52a8\u91cd\u542f\u7cfb\u7edf\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5f53\u7cfb\u7edf\u5d29\u6e83\u540e\uff0c\u6211\u4eec\u53ef\u80fd\u5e76\u4e0d\u80fd\u7acb\u5373\u53d1\u73b0\u8fd9\u4e2a\u95ee\u9898\uff0c\u5982\u679c\u8fd9\u4e2a\u65f6\u5019\u6ca1\u6709\u53ca\u65f6\u5904\u7406\uff0c\u53ef\u80fd\u4f1a\u5f15\u8d77\u66f4\u52a0\u4e25\u91cd\u7684\u540e\u679c\uff0c\u6bd4\u5982\u4e22\u5931\u6570\u636e\u3001\u7cfb\u7edf\u7269\u7406\u635f\u574f\u7b49\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cLinux\u5185\u6838\u4e2d\u63d0\u4f9b\u4e86\u4e00\u4e2a\u53eb\u505aWatchdog\u7684\u5de5\u5177\uff0c\u7528\u6765\u81ea\u52a8\u76d1\u63a7\u7cfb\u7edf\u5d29\u6e83\u5e76\u81ea\u52a8\u91cd\u542f\u3002<\/p>\n<p>Watchdog\u662f\u4e00\u79cd\u786c\u4ef6\u548c\/\u6216\u8f6f\u4ef6\u7ec4\u5408\uff0c\u5b83\u53ef\u4ee5\u5728\u68c0\u6d4b\u5230\u7cfb\u7edf\u6545\u969c\u7684\u60c5\u51b5\u4e0b\u6267\u884c\u8f6f\u4ef6\u81ea\u52a8\u91cd\u542f\u3002Watchdog\u4e0e\u786c\u4ef6\u548c\u8f6f\u4ef6\u914d\u5408\u4f7f\u7528\u662f\u5fc5\u8981\u7684\u3002\u786c\u4ef6\u90e8\u5206\u901a\u5e38\u7531\u4e00\u4e2a\u7269\u7406\u8ba1\u65f6\u5668\u6784\u6210\uff0c\u6bd4\u5982\u8bf4\u8ba1\u65f6\u5668\u4f1a\u5468\u671f\u6027\u7684\u53d1\u51fa\u4fe1\u53f7\uff0c\u5982\u679c\u5185\u6838\u6ca1\u6709\u5728\u6307\u5b9a\u65f6\u95f4\u5185\u5bf9\u5176\u54cd\u5e94\uff0c\u5219\u4f1a\u89e6\u53d1\u786c\u4ef6\u6545\u969c\u91cd\u542f\u3002\u800c\u8f6f\u4ef6\u90e8\u5206\u7531\u5185\u6838\u63d0\u4f9b\u3002<\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4e00\u4e0b\u5728Linux\u4e2d\u5982\u4f55\u4f7f\u7528Watchdog\u3002<\/p>\n<p>1.\u68c0\u67e5Kernel\u652f\u6301\u662f\u5426\u5df2\u542f\u7528<\/p>\n<p>\u5728\u5f00\u59cb\u4f7f\u7528Watchdog\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u5df2\u7ecf\u542f\u7528\u5185\u6838\u652f\u6301\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u68c0\u67e5\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>$ grep -i watchdog \/usr\/src\/linux\/.config<\/p>\n<p>\u201c`<\/p>\n<p>\u5982\u679cKernel\u652f\u6301\u5df2\u542f\u7528\uff0c\u4f1a\u663e\u793a\u8fd9\u6837\u7684\u4fe1\u606f\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>CONFIG_WATCHDOG=y<\/p>\n<p>\u201c`<\/p>\n<p>\u5426\u5219\uff0c\u9700\u8981\u91cd\u65b0\u7f16\u8bd1Kernel\uff0c\u7136\u540e\u786e\u4fddKernel\u652f\u6301\u5df2\u542f\u7528\u3002<\/p>\n<p>2.\u5b89\u88c5Watchdog\u8f6f\u4ef6\u5305<\/p>\n<p>\u5b89\u88c5Watchdog\u7684\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>$ sudo apt-get install watchdog<\/p>\n<p>\u201c`<\/p>\n<p>3.\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/p>\n<p>\u68c0\u67e5Watchdog\u914d\u7f6e\u6587\u4ef6\/opt\/watchdog.conf\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>$ sudo nano \/etc\/watchdog.conf<\/p>\n<p>\u201c`<\/p>\n<p>\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u5982\u4e0b\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>watchdog-device = \/dev\/watchdog<\/p>\n<p>watchdog-timeout = 15<\/p>\n<p>realtime = yes<\/p>\n<p>priority = 1<\/p>\n<p>max-load-1 = 24<\/p>\n<p>\u201c`<\/p>\n<p>\u5176\u4e2d\uff0cwatchdog-device\u662f\u6307\u5b9aWatchdog\u8bbe\u5907\uff0cwatchdog-timeout\u662f\u8bbe\u7f6eWatchdog\u8d85\u65f6\u65f6\u95f4\uff0crealtime\u662f\u8bbe\u7f6eWatchdog\u4ee5\u5b9e\u65f6\u65b9\u5f0f\u5de5\u4f5c\uff0cpriority\u662f\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff0cmax-load-1\u662f\u8bbe\u7f6e1\u5206\u949f\u5185\u7cfb\u7edf\u6838\u5fc3\u6570\u8d1f\u8f7d\u7684\u66f4\u5927\u503c\u3002<\/p>\n<p>\u6dfb\u52a0\u8fd0\u884c\u811a\u672c<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4efd\u53ef\u4ee5\u4f7f\u7528\u7684Watchdog\u811a\u672c\u3002\u6253\u5f00\u4e00\u4e2a\u65b0\u6587\u4ef6\u6765\u7f16\u5199\u811a\u672c\u3002<\/p>\n<p>\u201c`<\/p>\n<p>#!\/bin\/bash<\/p>\n<p>service mysql status # \u68c0\u67e5 mysql \u670d\u52a1\u662f\u5426\u5df2\u7ecf\u505c\u6b62<\/p>\n<p>if [ \u201c$?\u201d != \u201c0\u201d ]; then<\/p>\n<p> service mysql stop &amp;&amp; service mysql start<\/p>\n<p>fi<\/p>\n<p>\u201c`<\/p>\n<p>\u8be5\u811a\u672c\u53ef\u4ee5\u901a\u8fc7\u68c0\u67e5MySQL\u670d\u52a1\u662f\u5426\u6b63\u5728\u8fd0\u884c\uff0c\u5982\u679c\u5b83\u6b63\u5728\u8fd0\u884c\uff0c\u5219\u4e0d\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u5426\u5219\u5b83\u4f1a\u505c\u6b62\u5e76\u91cd\u65b0\u542f\u52a8\u670d\u52a1\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4fdd\u5b58\u811a\u672c\uff0c\u5e76\u5c06\u5176\u653e\u7f6e\u5728\u7cfb\u7edf\u53ef\u6267\u884c\u8def\u5f84\u4e2d\uff0c\u4f8b\u5982\u5728\/usr\/local\/bin\/\u76ee\u5f55\u4e2d\u3002<\/p>\n<p>\u201c`<\/p>\n<p>sudo chmod +x \/usr\/local\/bin\/watchdog_mysql.sh<\/p>\n<p>\u201c`<\/p>\n<p>5.\u542f\u7528Watchdog\u670d\u52a1<\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u542f\u7528Watchdog\u670d\u52a1\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>$ sudo systemctl enable watchdog<\/p>\n<p>\u201c`<\/p>\n<p>\u91cd\u542f\u7cfb\u7edf\u5e76\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u542f\u52a8Watchdog\u670d\u52a1\uff1a<\/p>\n<p>\u201c`<\/p>\n<p>$ sudo systemctl start watchdog<\/p>\n<p>\u201c`<\/p>\n<p>\u81f3\u6b64\uff0cWatchdog\u5c31\u53ef\u4ee5\u5728\u7cfb\u7edf\u51fa\u73b0\u6545\u969c\u65f6\u81ea\u52a8\u91cd\u542f\u7cfb\u7edf\u4e86\u3002<\/p>\n<p>Watchdog\u662f\u4e00\u79cd\u975e\u5e38\u5b9e\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u5728\u7cfb\u7edf\u51fa\u73b0\u6545\u969c\u65f6\u81ea\u52a8\u91cd\u542f\u7cfb\u7edf\uff0c\u66f4\u52a0\u65b9\u4fbf\u5730\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002\u5728Linux\u4e2d\u5b89\u88c5\u548c\u4f7f\u7528Watchdog\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u901a\u8fc7\u4e0a\u9762\u7684\u6b65\u9aa4\u5c31\u53ef\u4ee5\u8f7b\u677e\u914d\u7f6e\u5e76\u542f\u7528Watchdog\u670d\u52a1\uff0c\u5bf9\u4e8eLinux\u670d\u52a1\u5668\u7ba1\u7406\u5458\u6765\u8bf4\uff0c\u8fd9\u4e2a\u529f\u80fd\u7edd\u5bf9\u662f\u7ed5\u4e0d\u8fc7\u53bb\u7684\u4e00\u9053\u91cd\u8981\u8bfe\u9898\u3002<\/p>\n<p><strong>\u76f8\u5173\u95ee\u9898\u62d3\u5c55\u9605\u8bfb\uff1a<\/strong><\/p>\n<ul>\n<li>\u60a8\u597d\uff0c\u5982\u679c\u8981\u5173\u95edlinux\u7cfb\u7edf\u7684\u770b\u95e8\u72d7\uff0c\u8981\u600e\u4e48\u64cd\u4f5c\u5462\uff1f\u591a\u8c22\uff01<\/li>\n<li>linux\u600e\u6837\u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u7cfb\u7edf\u72b6\u6001<\/li>\n<li>Linux\u3002 Shell\u7f16\u7a0b\u3002 \u4e3ahello.sh\u5199\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0bwatchDog.sh<\/li>\n<\/ul>\n<h3>\u60a8\u597d\uff0c\u5982\u679c\u8981\u5173\u95edlinux\u7cfb\u7edf\u7684\u770b\u95e8\u72d7\uff0c\u8981\u600e\u4e48\u64cd\u4f5c\u5462\uff1f\u591a\u8c22\uff01<\/h3>\n<p>\u60a8\u597d\uff0c\u611f\u8c22\u60a8\u9009\u62e9\u5ca9\u8f6e\u60e0\u666e\u4ea7\u54c1\u3002\u4e00\u3001\u4e3a\u4e86\u4fdd\u8bc1\u7b14\u8bb0\u672c\u8fd0\u884c\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\uff0chp\u5b98\u65b9\u4e0d\u5efa\u8bae\u7528\u6237\u5b89\u88c5\u53cc\u7cfb\u7edf\uff0c\u4e5f\u6ca1\u6709\u53cc\u7cfb\u7edf\u8fd0\u884c\u65b9\u9762\u7684\u76f8\u5173\u8d44\u6599\uff0c\u60e0\u666e\u63a8\u8350\u60a8\u5b89\u88c5\u4f7f\u7528\u5355\u4e00\u7684\u7cfb\u7edf\u3002\u4e8c\u3001Linux\u7684\u5206\u533a\u683c\u5f0f\u548cwindow7\u53cawindows8\u7cfb\u7edf\u7684\u5206\u533a\u683c\u5f0f\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u56e0\u6b64\u60a8\u5728\u5b89\u88c5\u64cd\u4f5c\u7cfb\u7edf\u524d\u9700\u8981\u5c06\u91cd\u8981\u7684\u6587\u4ef6\u4fdd\u5b58\u51fa\u6765\u7136\u540e\u7528\u8bf8\u5982PQ\u8fd9\u6837\u7684\u5206\u533a\u8f6f\u4ef6\u66f4\u6539\u5206\u683c\u7c97\u8fd0\u4fe1\u5f0f\u4e3aNTFS\u518d\u8fdb\u884c\u5b89\u88c5\u3002\u4e09\u3001\u4fee\u6539\u5206\u533a\u683c\u5f0f\u540e\u5efa\u8bae\u60a8\u53ef\u4ee5\u4fdd\u5b58\u91cd\u8981\u7684\u6587\u4ef6\u540e\u6309\u4e0b\u9762\u7684\u65b9\u6cd5\u5149\u9a71\u5f15\u5bfc\u91cd\u65b0\u5b89\u88c5\u64cd\u4f5c\u7cfb\u7edf\uff1a\u2460\u5c06\u5b89\u88c5\u5149\u76d8\u653e\u5165\u5149\u9a71\uff0c\u91cd\u6084\u85af\u65b0\u542f\u52a8\u7535\u8111\u2461\u5f53\u5c4f\u5e55\u4e0a\u51fa\u73b0\u201cHP\/COMPAQ\u201d\u7684LOGO\u65f6\uff0c\u8fde\u7eed\u70b9\u51fb\u201cF9\u201d\u952e\u2462\u9009\u62e9\u201cCD\/DVDROMDrive\u201d\uff0c\u6309\u4e0b\u56de\u8f66(Enter)\u952e\u786e\u5b9a\u3002\u6ce8\uff1a\u7531\u4e8e\u5404\u673a\u578b\u4e0d\u540c\uff0c\u5149\u9a71\u5f15\u5bfc\u7684\u754c\u9762\u7565\u6709\u4e0d\u540c\uff0c\u8bf7\u9009\u62e9\u4ee3\u8868\u5149\u9a71\u7684\u4e00\u9879\u3002\u2463Win7\u7684\u5b89\u88c5\u8fc7\u7a0b\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u5fae\u8f6f\u5b98\u65b9\u6587\u6863\u8d44\u6599\uff1a\/portal\/site\/hpsc\/public\/kb\/docDisplay\/?docId=emr_na-c\u5e0c\u671b\u4ee5\u4e0a\u56de\u590d\u80fd\u591f\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<h3>linux\u600e\u6837\u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u7cfb\u7edf\u72b6\u6001<\/h3>\n<p>\u547d\u4ee4\u884c\u8f93\u5165top\uff0c\u56de\u8f66<\/p>\n<p>13:42:59 \u5f53\u524d\u7cfb\u7edf\u65f6\u95f4<\/p>\n<p>&nbsp;6 days, 9:29 \u7cfb\u7edf\u5df2\u7ecf\u8fd0\u884c\u4e866\u59296\u5c0f\u65f629\u5206\u949f\uff08\u5728\u8fd9\u671f\u95f4\u6ca1\u6709\u91cd\u542f\u8fc7\uff09<\/p>\n<p>&nbsp;3 users \u5f53\u524d\u67093\u4e2a\u7528\u6237\u767b\u5f55\u7cfb\u7edf<\/p>\n<p>&nbsp;load average: 3.06,3.01, 1.79 load average\u540e\u9762\u7684\u4e09\u4e2a\u6570\u5206\u522b\u662f1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u7684\u8d1f\u8f7d\u60c5\u51b5\u3002<\/p>\n<p>load average\u6570\u636e\u662f\u6bcf\u96945\u79d2\u949f\u68c0\u67e5\u4e00\u6b21\u6d3b\u8dc3\u7684\u8fdb\u7a0b\u6570\uff0c\u7136\u540e\u6309\u7279\u5b9a\u7b97\u6cd5\u8ba1\u7b97\u51fa\u7684\u6570\u503c\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u9664\u4ee5\u903b\u51f3\u8a89\u778e\u8f91CPU\u7684\u6570\u67a3\u7a7a\u91cf\uff0c\u7ed3\u679c\u9ad8\u4e8e5\u7684\u65f6\u5019\u5c31\u8868\u660e\u7cfb\u7edf\u5728\u8d85\u8d1f\u8377\u8fd0\u8f6c\u4e86\u3002<\/p>\n<p>&nbsp;Tasks \u4efb\u52a1\uff08\u8fdb\u7a0b\uff09\uff0c\u7cfb\u7edf\u73b0\u5728\u5171\u6709131\u4e2a\u8fdb\u7a0b\uff0c\u5176\u4e2d\u5904\u4e8e\u8fd0\u884c\u4e2d\u7684\u67093\u4e2a\uff0c127\u4e2a\u5728\u4f11\u7720\uff08sleep\uff09\uff0cstoped\u72b6\u6001\u7684\u67090\u4e2a\uff0czombie\u72b6\u6001\uff08\u50f5\u5c38\uff09\u7684\u67091\u4e2a\u3002<\/p>\n<p>&nbsp;10.6% us \u7528\u6237\u7a7a\u95f4\u5360\u7528CPU\u7684\u767e\u5206\u6bd4\u3002<\/p>\n<p>&nbsp;2.2% sy \u5185\u6838\u7a7a\u95f4\u5360\u7528CPU\u7684\u767e\u5206\u6bd4\u3002<\/p>\n<p>&nbsp;0.0% ni \u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;84.5% id \u7a7a\u95f2CPU\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;2.5% wa IO\u7b49\u5f85\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;0.1% hi \u786c\u4e2d\u65ad\uff08Hardware IRQ\uff09\u5360\u7528\u865a\u7965CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;0.0% si \u8f6f\u4e2d\u65ad\uff08Software Interrupts\uff09\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>\u5728\u8fd9\u91ccCPU\u7684\u4f7f\u7528\u6bd4\u7387\u548cwindows\u6982\u5ff5\u4e0d\u540c\uff0c\u5982\u679c\u4f60\u4e0d\u7406\u89e3\u7528\u6237\u7a7a\u95f4\u548c\u5185\u6838\u7a7a\u95f4\uff0c\u9700\u8981\u5145\u5145\u7535\u4e86\u3002<\/p>\n<p>k total \u7269\u7406\u5185\u5b58\u603b\u91cf\uff088GB\uff09<\/p>\n<p>k used \u4f7f\u7528\u4e2d\u7684\u5185\u5b58\u603b\u91cf\uff085.7GB\uff09<\/p>\n<p>k free \u7a7a\u95f2\u5185\u5b58\u603b\u91cf\uff082.2G\uff09<\/p>\n<p>k buffers \u7f13\u5b58\u7684\u5185\u5b58\u91cf \uff08434M\uff09<\/p>\n<p>&nbsp;&nbsp;<\/p>\n<p>\u7b2c\u4e94\u884c\uff1aswap\u4ea4\u6362\u5206\u533a<\/p>\n<p>k total \u4ea4\u6362\u533a\u603b\u91cf\uff088GB\uff09<\/p>\n<p>&nbsp;41568k used \u4f7f\u7528\u7684\u4ea4\u6362\u533a\u603b\u91cf\uff0840.6M\uff09<\/p>\n<p>k free \u7a7a\u95f2\u4ea4\u6362\u533a\u603b\u91cf\uff088GB\uff09<\/p>\n<p>k cached \u7f13\u51b2\u7684\u4ea4\u6362\u533a\u603b\u91cf\uff084GB\uff09<\/p>\n<p>\u5185\u5b58\u603b\u91cf\uff08used\uff09\u6307\u7684\u662f\u73b0\u5728\u7cfb\u7edf\u5185\u6838\u63a7\u5236\u7684\u5185\u5b58\u6570\uff0c\u7a7a\u95f2\u5185\u5b58\u603b\u91cf\uff08free\uff09\u662f\u5185\u6838\u8fd8\u672a\u7eb3\u5165\u5176\u7ba1\u63a7\u8303\u56f4\u7684\u6570\u91cf\u3002\u7eb3\u5165\u5185\u6838\u7ba1\u7406\u7684\u5185\u5b58\u4e0d\u89c1\u5f97\u90fd\u5728\u4f7f\u7528\u4e2d\uff0c\u8fd8\u5305\u62ec\u8fc7\u53bb\u4f7f\u7528\u8fc7\u7684\u73b0\u5728\u53ef\u4ee5\u88ab\u91cd\u590d\u5229\u7528\u7684\u5185\u5b58\uff0c\u5185\u6838\u5e76\u4e0d\u628a\u8fd9\u4e9b\u53ef\u88ab\u91cd\u65b0\u4f7f\u7528\u7684\u5185\u5b58\u4ea4\u8fd8\u5230free\u4e2d\u53bb\uff0c\u56e0\u6b64\u5728linux\u4e0afree\u5185\u5b58\u4f1a\u8d8a\u6765\u8d8a\u5c11\uff0c\u4f46\u4e0d\u7528\u4e3a\u6b64\u62c5\u5fc3\u3002<\/p>\n<p>\u5982\u679c\u51fa\u4e8e\u4e60\u60ef\u53bb\u8ba1\u7b97\u53ef\u7528\u5185\u5b58\u6570\uff0c\u8fd9\u91cc\u6709\u4e2a\u8fd1\u4f3c\u7684\u8ba1\u7b97\u516c\u5f0f\uff1a\u7b2c\u56db\u884c\u7684free + \u7b2c\u56db\u884c\u7684buffers + \u7b2c\u4e94\u884c\u7684cached\uff0c\u6309\u8fd9\u4e2a\u516c\u5f0f\u6b64\u53f0\u670d\u52a1\u5668\u7684\u53ef\u7528\u5185\u5b58\uff1a++= 6.6GB\u3002<\/p>\n<p>\u5bf9\u4e8e\u5185\u5b58\u76d1\u63a7\uff0c\u5728top\u91cc\u6211\u4eec\u8981\u65f6\u523b\u76d1\u63a7\u7b2c\u4e94\u884cswap\u4ea4\u6362\u5206\u533a\u7684used\uff0c\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5728\u4e0d\u65ad\u7684\u53d8\u5316\uff0c\u8bf4\u660e\u5185\u6838\u5728\u4e0d\u65ad\u8fdb\u884c\u5185\u5b58\u548cswap\u7684\u6570\u636e\u4ea4\u6362\uff0c\u8fd9\u662f\u771f\u6b63\u7684\u5185\u5b58\u4e0d\u591f\u7528\u4e86\u3002<\/p>\n<p>\u5404\u8fdb\u7a0b\uff08\u4efb\u52a1\uff09\u7684\u72b6\u6001\u76d1\u63a7\uff1a<\/p>\n<p>&nbsp;PID \u8fdb\u7a0bid<\/p>\n<p>&nbsp;USER \u8fdb\u7a0b\u6240\u6709\u8005<\/p>\n<p>&nbsp;PR \u8fdb\u7a0b\u4f18\u5148\u7ea7<\/p>\n<p>&nbsp;NI nice\u503c\u3002\u8d1f\u503c\u8868\u793a\u9ad8\u4f18\u5148\u7ea7\uff0c\u6b63\u503c\u8868\u793a\u4f4e\u4f18\u5148\u7ea7<\/p>\n<p>&nbsp;VIRT \u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u603b\u91cf\uff0c\u5355\u4f4dkb\u3002VIRT=SWAP+RES<\/p>\n<p>&nbsp;RES \u8fdb\u7a0b\u4f7f\u7528\u7684\u3001\u672a\u88ab\u6362\u51fa\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002RES=CODE+DATA<\/p>\n<p>&nbsp;SHR \u5171\u4eab\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/p>\n<p>&nbsp;S \u8fdb\u7a0b\u72b6\u6001\u3002D=\u4e0d\u53ef\u4e2d\u65ad\u7684\u7761\u7720\u72b6\u6001 R=\u8fd0\u884c S=\u7761\u7720 T=\u8ddf\u8e2a\/\u505c\u6b62 Z=\u50f5\u5c38\u8fdb\u7a0b<\/p>\n<p>&nbsp;%CPU \u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;%MEM \u8fdb\u7a0b\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;TIME+ \u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d1\/100\u79d2<\/p>\n<p>&nbsp;COMMAND \u8fdb\u7a0b\u540d\u79f0\uff08\u547d\u4ee4\u540d\/\u547d\u4ee4\u884c\uff09<\/p>\n<p>1\uff0e\u547d\u4ee4\u683c\u5f0f\uff1a<\/p>\n<p>top <\/p>\n<\/p>\n<p>2\uff0e\u547d\u4ee4\u529f\u80fd\uff1a<\/p>\n<p>\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u6b63\u5728\u71c3\u5acc\u6267\u884c\u7684\u8fdb\u7a0b\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u5305\u62ec\u8fdb\u7a0bID\u3001\u5185\u5b58\u5360\u7528\u7387\u3001CPU\u5360\u7528\u7387\u7b49<\/p>\n<p>3\uff0e\u547d\u4ee4\u53c2\u6570\uff1a<\/p>\n<p>-b \u6279\u5904\u7406<\/p>\n<p>-c \u663e\u793a\u5b8c\u6574\u7684\u6cbb\u547d\u4ee4<\/p>\n<p>-I \u5ffd\u7565\u5931\u6548\u8fc7\u78a7\u674e\u7a0b<\/p>\n<p>-s \u4fdd\u5bc6\u6a21\u5f0f<\/p>\n<p>-S \u7d2f\u79ef\u6a21\u5f0f<\/p>\n<p>-i \u8bbe\u7f6e\u95f4\u9694\u65f6\u95f4<\/p>\n<p>-u \u6307\u5b9a\u7528\u6237\u540d<\/p>\n<p>-p \u6307\u5b9a\u8fdb\u7a0b<\/p>\n<p>-n \u5faa\u73af\u663e\u793a\u7684\u6b21\u6570<\/p>\n<p>4\uff0e\u4f7f\u7528\u5b9e\u6094\u6bb5\u8fdf\u4f8b\uff1a<\/p>\n<p>\u5b9e\u4f8b1\uff1a\u663e\u793a\u8fdb\u7a0b\u4fe1\u606f<\/p>\n<p>\u547d\u4ee4\uff1atop<\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p>\u590d\u5236\u4ee3\u7801<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b:<\/p>\n<p># top<\/p>\n<\/p>\n<p>top \u2013 14:06:23 up 70 days, 16:44, 2 users, load average: 1.25, 1.32, 1.35<\/p>\n<p>Tasks: 206 total, 1 running, 205 sleeping, 0 stopped, 0 zombie<\/p>\n<p>Cpu(s): 5.9%us, 3.4%sy, 0.0%ni, 90.4%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st<\/p>\n<p>Mem:k total,k used,k free,k buffers<\/p>\n<p>Swap:k total, 0k used,k free,k cached<\/p>\n<p> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND <\/p>\n<p>28894 rootm 405m 10m S 52.2 1.3 2534:16 java <\/p>\n<p>18249 rootm 1.9g 11m S 35.9 6.0 569:39.41 java <\/p>\n<p>2808 rootm 1.0g 11m S 24.3 3.1 526:51.85 java <\/p>\n<p>25668 rootm 704m 11m S 14.0 2.2 360:44.53 java <\/p>\n<p>574 rootm 611m 10m S 12.6 1.9 556:59.63 java <\/p>\n<p>1599 rootm 1.9g 11m S 12.3 6.2 262:01.14 java <\/p>\n<p>1008 rootm 842m 10m S 0.3 2.6 4:31.08 java <\/p>\n<p>13823 rootm 2.1g 10m S 0.3 6.8 176:57.34 java <\/p>\n<p>28218 rootR 0.3 0.0 0:01.43 top <\/p>\n<p>29062 rootm 227m 10m S 0.3 0.7 2:07.32 java <\/p>\n<p>1 root4 572 S 0.0 0.0 1:30.85 init <\/p>\n<p>2 root RTS 0.0 0.0 0:01.01 migration\/0 <\/p>\n<p>3 rootS 0.0 0.0 0:00.00 ksoftirqd\/0 <\/p>\n<p>4 root RTS 0.0 0.0 0:00.00 watchdog\/0 <\/p>\n<p>5 root RTS 0.0 0.0 0:00.80 migration\/1 <\/p>\n<p>6 rootS 0.0 0.0 0:00.00 ksoftirqd\/1 <\/p>\n<p>7 root RTS 0.0 0.0 0:00.00 watchdog\/1 <\/p>\n<p>8 root RTS 0.0 0.0 0:20.59 migration\/2 <\/p>\n<p>9 rootS 0.0 0.0 0:00.09 ksoftirqd\/2 <\/p>\n<p>10 root RTS 0.0 0.0 0:00.00 watchdog\/2 <\/p>\n<p>11 root RTS 0.0 0.0 0:23.66 migration\/3 <\/p>\n<p>12 rootS 0.0 0.0 0:00.03 ksoftirqd\/3 <\/p>\n<p>13 root RTS 0.0 0.0 0:00.00 watchdog\/3 <\/p>\n<p>14 root RTS 0.0 0.0 0:20.29 migration\/4 <\/p>\n<p>15 rootS 0.0 0.0 0:00.07 ksoftirqd\/4 <\/p>\n<p>16 root RTS 0.0 0.0 0:00.00 watchdog\/4 <\/p>\n<p>17 root RTS 0.0 0.0 0:23.07 migration\/5 <\/p>\n<p>18 rootS 0.0 0.0 0:00.07 ksoftirqd\/5 <\/p>\n<p>19 root RTS 0.0 0.0 0:00.00 watchdog\/5 <\/p>\n<p>20 root RTS 0.0 0.0 0:17.16 migration\/6 <\/p>\n<p>21 rootS 0.0 0.0 0:00.05 ksoftirqd\/6 <\/p>\n<p>22 root RTS 0.0 0.0 0:00.00 watchdog\/6 <\/p>\n<p>23 root RTS 0.0 0.0 0:58.28 migration\/7<\/p>\n<p>top\u547d\u4ee4\u8f93\u51fa\u5185\u5bb9\u8be6\u7ec6\u8bf4\u660e\uff1a<\/p>\n<p>\u7edf\u8ba1\u4fe1\u606f\u533a\uff1a<\/p>\n<p>\u524d\u4e94\u884c\u662f\u5f53\u524d\u7cfb\u7edf\u60c5\u51b5\u6574\u4f53\u7684\u7edf\u8ba1\u4fe1\u606f\u533a\u3002\u4e0b\u9762\u6211\u4eec\u770b\u6bcf\u4e00\u884c\u4fe1\u606f\u7684\u5177\u4f53\u610f\u4e49\u3002<\/p>\n<p>\u4e4b\u4e00\u884c\uff0c\u4efb\u52a1\u961f\u5217\u4fe1\u606f\uff0c\u540c uptime \u547d\u4ee4\u7684\u6267\u884c\u7ed3\u679c\uff0c\u5177\u4f53\u53c2\u6570\u8bf4\u660e\u60c5\u51b5\u5982\u4e0b\uff1a<\/p>\n<p>14:06:23 \u2014 \u5f53\u524d\u7cfb\u7edf\u65f6\u95f4<\/p>\n<p>up 70 days, 16:44 \u2014 \u7cfb\u7edf\u5df2\u7ecf\u8fd0\u884c\u4e8670\u592916\u5c0f\u65f644\u5206\u949f\uff08\u5728\u8fd9\u671f\u95f4\u7cfb\u7edf\u6ca1\u6709\u91cd\u542f\u8fc7\u7684\u5406\uff01\uff09<\/p>\n<p>2 users \u2014 \u5f53\u524d\u67092\u4e2a\u7528\u6237\u767b\u5f55\u7cfb\u7edf<\/p>\n<p>load average: 1.15, 1.42, 1.44 \u2014 load average\u540e\u9762\u7684\u4e09\u4e2a\u6570\u5206\u522b\u662f1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u7684\u8d1f\u8f7d\u60c5\u51b5\u3002<\/p>\n<p>load average\u6570\u636e\u662f\u6bcf\u96945\u79d2\u949f\u68c0\u67e5\u4e00\u6b21\u6d3b\u8dc3\u7684\u8fdb\u7a0b\u6570\uff0c\u7136\u540e\u6309\u7279\u5b9a\u7b97\u6cd5\u8ba1\u7b97\u51fa\u7684\u6570\u503c\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u9664\u4ee5\u903b\u8f91CPU\u7684\u6570\u91cf\uff0c\u7ed3\u679c\u9ad8\u4e8e5\u7684\u65f6\u5019\u5c31\u8868\u660e\u7cfb\u7edf\u5728\u8d85\u8d1f\u8377\u8fd0\u8f6c\u4e86\u3002<\/p>\n<p>\u7b2c\u4e8c\u884c\uff0cTasks \u2014 \u4efb\u52a1\uff08\u8fdb\u7a0b\uff09\uff0c\u5177\u4f53\u4fe1\u606f\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<p>\u7cfb\u7edf\u73b0\u5728\u5171\u6709206\u4e2a\u8fdb\u7a0b\uff0c\u5176\u4e2d\u5904\u4e8e\u8fd0\u884c\u4e2d\u7684\u67091\u4e2a\uff0c205\u4e2a\u5728\u4f11\u7720\uff08sleep\uff09\uff0cstoped\u72b6\u6001\u7684\u67090\u4e2a\uff0czombie\u72b6\u6001\uff08\u50f5\u5c38\uff09\u7684\u67090\u4e2a\u3002<\/p>\n<p>\u7b2c\u4e09\u884c\uff0ccpu\u72b6\u6001\u4fe1\u606f\uff0c\u5177\u4f53\u5c5e\u6027\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<p>5.9%us \u2014 \u7528\u6237\u7a7a\u95f4\u5360\u7528CPU\u7684\u767e\u5206\u6bd4\u3002<\/p>\n<p>3.4% sy \u2014 \u5185\u6838\u7a7a\u95f4\u5360\u7528CPU\u7684\u767e\u5206\u6bd4\u3002<\/p>\n<p>0.0% ni \u2014 \u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>90.4% id \u2014 \u7a7a\u95f2CPU\u767e\u5206\u6bd4<\/p>\n<p>0.0% wa \u2014 IO\u7b49\u5f85\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>0.0% hi \u2014 \u786c\u4e2d\u65ad\uff08Hardware IRQ\uff09\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>0.2% si \u2014 \u8f6f\u4e2d\u65ad\uff08Software Interrupts\uff09\u5360\u7528CPU\u7684\u767e\u5206\u6bd4<\/p>\n<p>\u5907\u6ce8\uff1a\u5728\u8fd9\u91ccCPU\u7684\u4f7f\u7528\u6bd4\u7387\u548cwindows\u6982\u5ff5\u4e0d\u540c\uff0c\u9700\u8981\u7406\u89e3linux\u7cfb\u7edf\u7528\u6237\u7a7a\u95f4\u548c\u5185\u6838\u7a7a\u95f4\u7684\u76f8\u5173\u77e5\u8bc6\uff01<\/p>\n<p>\u7b2c\u56db\u884c,\u5185\u5b58\u72b6\u6001\uff0c\u5177\u4f53\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n<p>k total \u2014 \u7269\u7406\u5185\u5b58\u603b\u91cf\uff0832GB\uff09<\/p>\n<p>k used \u2014 \u4f7f\u7528\u4e2d\u7684\u5185\u5b58\u603b\u91cf\uff0814GB\uff09<\/p>\n<p>k free \u2014 \u7a7a\u95f2\u5185\u5b58\u603b\u91cf\uff0818GB\uff09<\/p>\n<p>169884k buffers \u2014 \u7f13\u5b58\u7684\u5185\u5b58\u91cf \uff08169M\uff09<\/p>\n<p>\u7b2c\u4e94\u884c\uff0cswap\u4ea4\u6362\u5206\u533a\u4fe1\u606f\uff0c\u5177\u4f53\u4fe1\u606f\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<p>k total \u2014 \u4ea4\u6362\u533a\u603b\u91cf\uff0832GB\uff09<\/p>\n<p>0k used \u2014 \u4f7f\u7528\u7684\u4ea4\u6362\u533a\u603b\u91cf\uff080K\uff09<\/p>\n<p>k free \u2014 \u7a7a\u95f2\u4ea4\u6362\u533a\u603b\u91cf\uff0832GB\uff09<\/p>\n<p>k cached \u2014 \u7f13\u51b2\u7684\u4ea4\u6362\u533a\u603b\u91cf\uff083.6GB\uff09<\/p>\n<p>\u5907\u6ce8\uff1a<\/p>\n<p>\u7b2c\u56db\u884c\u4e2d\u4f7f\u7528\u4e2d\u7684\u5185\u5b58\u603b\u91cf\uff08used\uff09\u6307\u7684\u662f\u73b0\u5728\u7cfb\u7edf\u5185\u6838\u63a7\u5236\u7684\u5185\u5b58\u6570\uff0c\u7a7a\u95f2\u5185\u5b58\u603b\u91cf\uff08free\uff09\u662f\u5185\u6838\u8fd8\u672a\u7eb3\u5165\u5176\u7ba1\u63a7\u8303\u56f4\u7684\u6570\u91cf\u3002\u7eb3\u5165\u5185\u6838\u7ba1\u7406\u7684\u5185\u5b58\u4e0d\u89c1\u5f97\u90fd\u5728\u4f7f\u7528\u4e2d\uff0c\u8fd8\u5305\u62ec\u8fc7\u53bb\u4f7f\u7528\u8fc7\u7684\u73b0\u5728\u53ef\u4ee5\u88ab\u91cd\u590d\u5229\u7528\u7684\u5185\u5b58\uff0c\u5185\u6838\u5e76\u4e0d\u628a\u8fd9\u4e9b\u53ef\u88ab\u91cd\u65b0\u4f7f\u7528\u7684\u5185\u5b58\u4ea4\u8fd8\u5230free\u4e2d\u53bb\uff0c\u56e0\u6b64\u5728linux\u4e0afree\u5185\u5b58\u4f1a\u8d8a\u6765\u8d8a\u5c11\uff0c\u4f46\u4e0d\u7528\u4e3a\u6b64\u62c5\u5fc3\u3002<\/p>\n<p>\u5982\u679c\u51fa\u4e8e\u4e60\u60ef\u53bb\u8ba1\u7b97\u53ef\u7528\u5185\u5b58\u6570\uff0c\u8fd9\u91cc\u6709\u4e2a\u8fd1\u4f3c\u7684\u8ba1\u7b97\u516c\u5f0f\uff1a\u7b2c\u56db\u884c\u7684free + \u7b2c\u56db\u884c\u7684buffers + \u7b2c\u4e94\u884c\u7684cached\uff0c\u6309\u8fd9\u4e2a\u516c\u5f0f\u6b64\u53f0\u670d\u52a1\u5668\u7684\u53ef\u7528\u5185\u5b58\uff1ak +169884k +k = 22GB\u5de6\u53f3\u3002<\/p>\n<p>\u5bf9\u4e8e\u5185\u5b58\u76d1\u63a7\uff0c\u5728top\u91cc\u6211\u4eec\u8981\u65f6\u523b\u76d1\u63a7\u7b2c\u4e94\u884cswap\u4ea4\u6362\u5206\u533a\u7684used\uff0c\u5982\u679c\u8fd9\u4e2a\u6570\u503c\u5728\u4e0d\u65ad\u7684\u53d8\u5316\uff0c\u8bf4\u660e\u5185\u6838\u5728\u4e0d\u65ad\u8fdb\u884c\u5185\u5b58\u548cswap\u7684\u6570\u636e\u4ea4\u6362\uff0c\u8fd9\u662f\u771f\u6b63\u7684\u5185\u5b58\u4e0d\u591f\u7528\u4e86\u3002<\/p>\n<p>\u7b2c\u516d\u884c\uff0c\u7a7a\u884c\u3002<\/p>\n<p>\u7b2c\u4e03\u884c\u4ee5\u4e0b\uff1a\u5404\u8fdb\u7a0b\uff08\u4efb\u52a1\uff09\u7684\u72b6\u6001\u76d1\u63a7\uff0c\u9879\u76ee\u5217\u4fe1\u606f\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n<p>PID \u2014 \u8fdb\u7a0bid<\/p>\n<p>USER \u2014 \u8fdb\u7a0b\u6240\u6709\u8005<\/p>\n<p>PR \u2014 \u8fdb\u7a0b\u4f18\u5148\u7ea7<\/p>\n<p>NI \u2014 nice\u503c\u3002\u8d1f\u503c\u8868\u793a\u9ad8\u4f18\u5148\u7ea7\uff0c\u6b63\u503c\u8868\u793a\u4f4e\u4f18\u5148\u7ea7<\/p>\n<p>VIRT \u2014 \u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u603b\u91cf\uff0c\u5355\u4f4dkb\u3002VIRT=SWAP+RES<\/p>\n<p>RES \u2014 \u8fdb\u7a0b\u4f7f\u7528\u7684\u3001\u672a\u88ab\u6362\u51fa\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002RES=CODE+DATA<\/p>\n<p>SHR \u2014 \u5171\u4eab\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/p>\n<p>S \u2014 \u8fdb\u7a0b\u72b6\u6001\u3002D=\u4e0d\u53ef\u4e2d\u65ad\u7684\u7761\u7720\u72b6\u6001 R=\u8fd0\u884c S=\u7761\u7720 T=\u8ddf\u8e2a\/\u505c\u6b62 Z=\u50f5\u5c38\u8fdb\u7a0b<\/p>\n<p>%CPU \u2014 \u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4<\/p>\n<p>%MEM \u2014 \u8fdb\u7a0b\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u767e\u5206\u6bd4<\/p>\n<p>TIME+ \u2014 \u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d1\/100\u79d2<\/p>\n<p>COMMAND \u2014 \u8fdb\u7a0b\u540d\u79f0\uff08\u547d\u4ee4\u540d\/\u547d\u4ee4\u884c\uff09<\/p>\n<p>\u5176\u4ed6\u4f7f\u7528\u6280\u5de7\uff1a<\/p>\n<p>1.\u591aU\u591a\u6838CPU\u76d1\u63a7<\/p>\n<p>\u5728top\u57fa\u672c\u89c6\u56fe\u4e2d\uff0c\u6309\u952e\u76d8\u6570\u5b57\u201c1\u201d\uff0c\u53ef\u76d1\u63a7\u6bcf\u4e2a\u903b\u8f91CPU\u7684\u72b6\u51b5\uff1a<\/p>\n<p>\u89c2\u5bdf\u4e0a\u56fe\uff0c\u670d\u52a1\u5668\u670916\u4e2a\u903b\u8f91CPU\uff0c\u5b9e\u9645\u4e0a\u662f4\u4e2a\u7269\u7406CPU\u3002\u518d\u6309\u6570\u5b57\u952e1\uff0c\u5c31\u4f1a\u8fd4\u56de\u5230top\u57fa\u672c\u89c6\u56fe\u754c\u9762\u3002<\/p>\n<p>2.\u9ad8\u4eae\u663e\u793a\u5f53\u524d\u8fd0\u884c\u8fdb\u7a0b<\/p>\n<p>\u6572\u51fb\u952e\u76d8\u201cb\u201d\uff08\u6253\u5f00\/\u5173\u95ed\u52a0\u4eae\u6548\u679c\uff09\uff0ctop\u7684\u89c6\u56fe\u53d8\u5316\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u6211\u4eec\u53d1\u73b0\u8fdb\u7a0bid\u4e3a2570\u7684\u201ctop\u201d\u8fdb\u7a0b\u88ab\u52a0\u4eae\u4e86\uff0ctop\u8fdb\u7a0b\u5c31\u662f\u89c6\u56fe\u7b2c\u4e8c\u884c\u663e\u793a\u7684\u552f\u4e00\u7684\u8fd0\u884c\u6001\uff08runing\uff09\u7684\u90a3\u4e2a\u8fdb\u7a0b\uff0c\u53ef\u4ee5\u901a\u8fc7\u6572\u51fb\u201cy\u201d\u952e\u5173\u95ed\u6216\u6253\u5f00\u8fd0\u884c\u6001\u8fdb\u7a0b\u7684\u52a0\u4eae\u6548\u679c\u3002<\/p>\n<p>3.\u8fdb\u7a0b\u5b57\u6bb5\u6392\u5e8f<\/p>\n<p>\u9ed8\u8ba4\u8fdb\u5165top\u65f6\uff0c\u5404\u8fdb\u7a0b\u662f\u6309\u7167CPU\u7684\u5360\u7528\u91cf\u6765\u6392\u5e8f\u7684\uff0c\u5728\u4e0b\u56fe\u4e2d\u8fdb\u7a0bID\u4e3a28894\u7684java\u8fdb\u7a0b\u6392\u5728\u4e4b\u4e00\uff08cpu\u5360\u7528142%\uff09\uff0c\u8fdb\u7a0bID\u4e3a574\u7684java\u8fdb\u7a0b\u6392\u5728\u7b2c\u4e8c\uff08cpu\u5360\u752816%\uff09\u3002<\/p>\n<\/p>\n<p> \u6572\u51fb\u952e\u76d8\u201cx\u201d\uff08\u6253\u5f00\/\u5173\u95ed\u6392\u5e8f\u5217\u7684\u52a0\u4eae\u6548\u679c\uff09\uff0ctop\u7684\u89c6\u56fe\u53d8\u5316\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0ctop\u9ed8\u8ba4\u7684\u6392\u5e8f\u5217\u662f\u201c%CPU\u201d\u3002<\/p>\n<p>4. \u901a\u8fc7\u201dshift + &gt;\u201d\u6216\u201dshift + \u201d\u7684\u6548\u679c\u56fe,\u89c6\u56fe\u73b0\u5728\u5df2\u7ecf\u6309\u7167%MEM\u6765\u6392\u5e8f\u3002<\/p>\n<\/p>\n<p>\u5b9e\u4f8b2\uff1a\u663e\u793a \u5b8c\u6574\u547d\u4ee4<\/p>\n<p>\u547d\u4ee4\uff1atop -c<\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<\/p>\n<p>\u5b9e\u4f8b3\uff1a\u4ee5\u6279\u5904\u7406\u6a21\u5f0f\u663e\u793a\u7a0b\u5e8f\u4fe1\u606f<\/p>\n<p>\u547d\u4ee4\uff1atop -b<\/p>\n<p>\u5b9e\u4f8b4\uff1a\u4ee5\u7d2f\u79ef\u6a21\u5f0f\u663e\u793a\u7a0b\u5e8f\u4fe1\u606f<\/p>\n<p>\u547d\u4ee4\uff1atop -S<\/p>\n<p>\u5b9e\u4f8b5\uff1a\u8bbe\u7f6e\u4fe1\u606f\u66f4\u65b0\u6b21\u6570<\/p>\n<p>\u547d\u4ee4\uff1atop -n 2<\/p>\n<p>\u8bf4\u660e\uff1a\u8868\u793a\u66f4\u65b0\u4e24\u6b21\u540e\u7ec8\u6b62\u66f4\u65b0\u663e\u793a<\/p>\n<p>\u5b9e\u4f8b6\uff1a\u8bbe\u7f6e\u4fe1\u606f\u66f4\u65b0\u65f6\u95f4<\/p>\n<p>\u547d\u4ee4\uff1atop -d 3<\/p>\n<p>\u8bf4\u660e\uff1a\u8868\u793a\u66f4\u65b0\u5468\u671f\u4e3a3\u79d2<\/p>\n<p>\u5b9e\u4f8b7\uff1a\u663e\u793a\u6307\u5b9a\u7684\u8fdb\u7a0b\u4fe1\u606f<\/p>\n<p>\u547d\u4ee4\uff1atop -p 574<\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<p>5.top\u4ea4\u4e92\u547d\u4ee4<\/p>\n<p>\u5728top \u547d\u4ee4\u6267\u884c\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u4f7f\u7528\u7684\u4e00\u4e9b\u4ea4\u4e92\u547d\u4ee4\u3002\u8fd9\u4e9b\u547d\u4ee4\u90fd\u662f\u5355\u5b57\u6bcd\u7684\uff0c\u5982\u679c\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528\u4e86s \u9009\u9879\uff0c \u5176\u4e2d\u4e00\u4e9b\u547d\u4ee4\u53ef\u80fd\u4f1a\u88ab\u5c4f\u853d\u3002<\/p>\n<p>h \u663e\u793a\u5e2e\u52a9\u753b\u9762\uff0c\u7ed9\u51fa\u4e00\u4e9b\u7b80\u77ed\u7684\u547d\u4ee4\u603b\u7ed3\u8bf4\u660e<\/p>\n<p>k \u7ec8\u6b62\u4e00\u4e2a\u8fdb\u7a0b\u3002<\/p>\n<p>i \u5ffd\u7565\u95f2\u7f6e\u548c\u50f5\u6b7b\u8fdb\u7a0b\u3002\u8fd9\u662f\u4e00\u4e2a\u5f00\u5173\u5f0f\u547d\u4ee4\u3002<\/p>\n<p>q \u9000\u51fa\u7a0b\u5e8f<\/p>\n<p>r \u91cd\u65b0\u5b89\u6392\u4e00\u4e2a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u522b<\/p>\n<p>S \u5207\u6362\u5230\u7d2f\u8ba1\u6a21\u5f0f<\/p>\n<p>s \u6539\u53d8\u4e24\u6b21\u5237\u65b0\u4e4b\u95f4\u7684\u5ef6\u8fdf\u65f6\u95f4\uff08\u5355\u4f4d\u4e3as\uff09\uff0c\u5982\u679c\u6709\u5c0f\u6570\uff0c\u5c31\u6362\u7b97\u6210m s\u3002\u8f93\u51650\u503c\u5219\u7cfb\u7edf\u5c06\u4e0d\u65ad\u5237\u65b0\uff0c\u9ed8\u8ba4\u503c\u662f5 s<\/p>\n<p>f\u6216\u8005F \u4ece\u5f53\u524d\u663e\u793a\u4e2d\u6dfb\u52a0\u6216\u8005\u5220\u9664\u9879\u76ee<\/p>\n<p>o\u6216\u8005O \u6539\u53d8\u663e\u793a\u9879\u76ee\u7684\u987a\u5e8f<\/p>\n<p>l \u5207\u6362\u663e\u793a\u5e73\u5747\u8d1f\u8f7d\u548c\u542f\u52a8\u65f6\u95f4\u4fe1\u606f<\/p>\n<p>m \u5207\u6362\u663e\u793a\u5185\u5b58\u4fe1\u606f<\/p>\n<p>t \u5207\u6362\u663e\u793a\u8fdb\u7a0b\u548cCPU\u72b6\u6001\u4fe1\u606f<\/p>\n<p>c \u5207\u6362\u663e\u793a\u547d\u4ee4\u540d\u79f0\u548c\u5b8c\u6574\u547d\u4ee4\u884c<\/p>\n<p>M \u6839\u636e\u9a7b\u7559\u5185\u5b58\u5927\u5c0f\u8fdb\u884c\u6392\u5e8f<\/p>\n<p>P \u6839\u636eCPU\u4f7f\u7528\u767e\u5206\u6bd4\u5927\u5c0f\u8fdb\u884c\u6392\u5e8f<\/p>\n<p>T \u6839\u636e\u65f6\u95f4\/\u7d2f\u8ba1\u65f6\u95f4\u8fdb\u884c\u6392\u5e8f<\/p>\n<p>W \u5c06\u5f53\u524d\u8bbe\u7f6e\u5199\u5165~\/.toprc\u6587\u4ef6\u4e2d<\/p>\n<h3>Linux\u3002 Shell\u7f16\u7a0b\u3002 \u4e3ahello.sh\u5199\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0bwatchDog.sh<\/h3>\n<p>watchDog.sh\u5b9e\u4f8b,\u8fd9\u4e2a\u53ea\u5982\u626e\u68ee\u662f\u4e2a\u601d\u8def\uff0c\u5177\u4f53\u4f60\u5f97\u7f3a\u4f0f\u81ea\u5df1\u6d4b\u8bd5<\/p>\n<p>#!\/bin\/sh<\/p>\n<p>hello=`ps -ef| grep hello.sh|grep -v grep |awk \u2018\u6e23\u4ea9{print $2}\u2019`<\/p>\n<p>while true;<\/p>\n<p>do<\/p>\n<p>if ; then<\/p>\n<p> .\/hello.sh<\/p>\n<p>fi<\/p>\n<p>done<\/p>\n<p>linux watchdog\u4f7f\u7528\u7684\u4ecb\u7ecd\u5c31\u804a\u5230\u8fd9\u91cc\u5427\uff0c\u611f\u8c22\u4f60\u82b1\u65f6\u95f4\u9605\u8bfb\u672c\u7ad9\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8elinux watchdog\u4f7f\u7528,Linux watchdog\u7684\u7b80\u5355\u4f7f\u7528\u65b9\u6cd5,\u60a8\u597d\uff0c\u5982\u679c\u8981\u5173\u95edlinux\u7cfb\u7edf\u7684\u770b\u95e8\u72d7\uff0c\u8981\u600e\u4e48\u64cd\u4f5c\u5462\uff1f\u591a\u8c22\uff01,linux\u600e\u6837\u4f7f\u7528top\u547d\u4ee4\u67e5\u770b\u7cfb\u7edf\u72b6\u6001,Linux\u3002 Shell\u7f16\u7a0b\u3002 \u4e3ahello.sh\u5199\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0bwatchDog.sh\u7684\u4fe1\u606f\u522b\u5fd8\u4e86\u5728\u672c\u7ad9\u8fdb\u884c\u67e5\u627e\u5594\u3002<\/p>\n<p><a href=\"http:https:\/\/idc.net\/\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u9996\u9009\u540e\u6d6a\u4e91\uff0c2H2G\u9996\u670810\u5143\u5f00\u901a\u3002<br \/>\u540e\u6d6a\u4e91\uff08www.IDC.Net\uff09\u63d0\u4f9b\u7b80\u5355\u597d\u7528\uff0c\u4ef7\u683c\u539a\u9053\u7684\u9999\u6e2f\/\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u548c\u72ec\u7acb\u670d\u52a1\u5668\u3002IDC+ISP+ICP\u8d44\u8d28\u3002ARIN\u548cAPNIC\u4f1a\u5458\u3002\u6210\u719f\u6280\u672f\u56e2\u961f15\u5e74\u884c\u4e1a\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux Watchdog\u7684\u7b80\u5355\u4f7f\u7528\u65b9\u6cd5 \u5f53\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u9047\u5230\u5d29\u6e83\u65f6\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u6211\u4eec\u9700\u8981\u624b\u52a8\u91cd\u542f\u7cfb\u7edf\u3002\u7136\u800c\uff0c\u5728 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-132392","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/132392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=132392"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/132392\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=132392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=132392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=132392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}