{"id":199,"date":"2012-03-21T15:40:00","date_gmt":"2012-03-21T07:40:00","guid":{"rendered":"http:\/\/www.eumz.com\/?p=199"},"modified":"2012-03-21T15:40:00","modified_gmt":"2012-03-21T07:40:00","slug":"linux%e4%b8%8btop%e5%91%bd%e4%bb%a4%e5%8f%82%e6%95%b0%e8%a7%a3%e9%87%8a","status":"publish","type":"post","link":"https:\/\/www.wxcn.com\/?p=199","title":{"rendered":"linux\u4e0btop\u547d\u4ee4\u53c2\u6570\u89e3\u91ca"},"content":{"rendered":"<p>top\u547d\u4ee4\u662fLinux\u4e0b\u5e38\u7528\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\uff0c\u80fd\u591f\u5b9e\u65f6\u663e\u793a\u7cfb\u7edf\u4e2d\u5404\u4e2a\u8fdb\u7a0b\u7684\u8d44\u6e90\u5360\u7528\u72b6\u51b5\uff0c\u7c7b\u4f3c\u4e8eWindows\u7684\u4efb\u52a1\u7ba1\u7406\u5668\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5b83\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<p>top &#8211; 01:06:48 up&nbsp; 1:22,&nbsp; 1 user,&nbsp; load average: 0.06, 0.60, 0.48<br \/>\nTasks:&nbsp; 29 total,&nbsp;&nbsp; 1 running,&nbsp; 28 sleeping,&nbsp;&nbsp; 0 stopped,&nbsp;&nbsp; 0 zombie<br \/>\nCpu(s):&nbsp; 0.3% us,&nbsp; 1.0% sy,&nbsp; 0.0% ni, 98.7% id,&nbsp; 0.0% wa,&nbsp; 0.0% hi,&nbsp; 0.0% si<br \/>\nMem:&nbsp;&nbsp;&nbsp; 191272k total,&nbsp;&nbsp; 173656k used,&nbsp;&nbsp;&nbsp; 17616k free,&nbsp;&nbsp;&nbsp; 22052k buffers<br \/>\nSwap:&nbsp;&nbsp; 192772k total,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0k used,&nbsp;&nbsp; 192772k free,&nbsp;&nbsp; 123988k cached<\/p>\n<p>&nbsp;&nbsp; PID USER&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PR&nbsp; NI&nbsp; VIRT&nbsp; RES&nbsp; SHR S %CPU %MEM&nbsp;&nbsp;&nbsp; TIME+&nbsp; COMMAND<br \/>\n&nbsp; 1379 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16&nbsp;&nbsp; 0&nbsp; 7976 2456 1980 S&nbsp; 0.7&nbsp; 1.3&nbsp;&nbsp; 0:11.03 sshd<br \/>\n14704 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16&nbsp;&nbsp; 0&nbsp; 2128&nbsp; 90&nbsp; 796 R&nbsp; 0.7&nbsp; 0.5&nbsp;&nbsp; 0:02.72 top<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp; 1 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 16&nbsp;&nbsp; 0&nbsp; 1992&nbsp; 632&nbsp; 544 S&nbsp; 0.0&nbsp; 0.3&nbsp;&nbsp; 0:00.90 init<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp; 2 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 34&nbsp; 19&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp; 0.0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 ksoftirqd\/0<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp; 3 root&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RT&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0&nbsp;&nbsp;&nbsp; 0 S&nbsp; 0.0&nbsp; 0.0&nbsp;&nbsp; 0:00.00 watchdog\/0<\/p>\n<p>\u7edf\u8ba1\u4fe1\u606f\u533a<\/p>\n<p>\u524d\u4e94\u884c\u662f\u7cfb\u7edf\u6574\u4f53\u7684\u7edf\u8ba1\u4fe1\u606f\u3002\u7b2c\u4e00\u884c\u662f\u4efb\u52a1\u961f\u5217\u4fe1\u606f\uff0c\u540c uptime \u547d\u4ee4\u7684\u6267\u884c\u7ed3\u679c\u3002\u5176\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<p>01:06:48 \u5f53\u524d\u65f6\u95f4<br \/>\nup 1:22 \u7cfb\u7edf\u8fd0\u884c\u65f6\u95f4\uff0c\u683c\u5f0f\u4e3a\u65f6:\u5206<br \/>\n1 user \u5f53\u524d\u767b\u5f55\u7528\u6237\u6570<br \/>\nload average: 0.06, 0.60, 0.48 \u7cfb\u7edf\u8d1f\u8f7d\uff0c\u5373\u4efb\u52a1\u961f\u5217\u7684\u5e73\u5747\u957f\u5ea6\u3002<br \/>\n\u4e09\u4e2a\u6570\u503c\u5206\u522b\u4e3a 1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u524d\u5230\u73b0\u5728\u7684\u5e73\u5747\u503c\u3002<\/p>\n<p>\u7b2c\u4e8c\u3001\u4e09\u884c\u4e3a\u8fdb\u7a0b\u548cCPU\u7684\u4fe1\u606f\u3002\u5f53\u6709\u591a\u4e2aCPU\u65f6\uff0c\u8fd9\u4e9b\u5185\u5bb9\u53ef\u80fd\u4f1a\u8d85\u8fc7\u4e24\u884c\u3002\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<p>Tasks: 29 total \u8fdb\u7a0b\u603b\u6570<br \/>\n1 running \u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\u6570<br \/>\n28 sleeping \u7761\u7720\u7684\u8fdb\u7a0b\u6570<br \/>\n0 stopped \u505c\u6b62\u7684\u8fdb\u7a0b\u6570<br \/>\n0 zombie \u50f5\u5c38\u8fdb\u7a0b\u6570<br \/>\nCpu(s): 0.3% us \u7528\u6237\u7a7a\u95f4\u5360\u7528CPU\u767e\u5206\u6bd4<br \/>\n1.0% sy \u5185\u6838\u7a7a\u95f4\u5360\u7528CPU\u767e\u5206\u6bd4<br \/>\n0.0% ni \u7528\u6237\u8fdb\u7a0b\u7a7a\u95f4\u5185\u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u767e\u5206\u6bd4<br \/>\n98.7% id \u7a7a\u95f2CPU\u767e\u5206\u6bd4<br \/>\n0.0% wa \u7b49\u5f85\u8f93\u5165\u8f93\u51fa\u7684CPU\u65f6\u95f4\u767e\u5206\u6bd4<br \/>\n0.0% hi<br \/>\n0.0% si&nbsp;<\/p>\n<p>\u6700\u540e\u4e24\u884c\u4e3a\u5185\u5b58\u4fe1\u606f\u3002\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<p>Mem: 191272k total \u7269\u7406\u5185\u5b58\u603b\u91cf<br \/>\n173656k used \u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u603b\u91cf<br \/>\n17616k free \u7a7a\u95f2\u5185\u5b58\u603b\u91cf<br \/>\n22052k buffers \u7528\u4f5c\u5185\u6838\u7f13\u5b58\u7684\u5185\u5b58\u91cf<br \/>\nSwap: 192772k total \u4ea4\u6362\u533a\u603b\u91cf<br \/>\n0k used \u4f7f\u7528\u7684\u4ea4\u6362\u533a\u603b\u91cf<br \/>\n192772k free \u7a7a\u95f2\u4ea4\u6362\u533a\u603b\u91cf<br \/>\n123988k cached \u7f13\u51b2\u7684\u4ea4\u6362\u533a\u603b\u91cf\u3002<br \/>\n\u5185\u5b58\u4e2d\u7684\u5185\u5bb9\u88ab\u6362\u51fa\u5230\u4ea4\u6362\u533a\uff0c\u800c\u540e\u53c8\u88ab\u6362\u5165\u5230\u5185\u5b58\uff0c\u4f46\u4f7f\u7528\u8fc7\u7684\u4ea4\u6362\u533a\u5c1a\u672a\u88ab\u8986\u76d6\uff0c<br \/>\n\u8be5\u6570\u503c\u5373\u4e3a\u8fd9\u4e9b\u5185\u5bb9\u5df2\u5b58\u5728\u4e8e\u5185\u5b58\u4e2d\u7684\u4ea4\u6362\u533a\u7684\u5927\u5c0f\u3002<br \/>\n\u76f8\u5e94\u7684\u5185\u5b58\u518d\u6b21\u88ab\u6362\u51fa\u65f6\u53ef\u4e0d\u5fc5\u518d\u5bf9\u4ea4\u6362\u533a\u5199\u5165\u3002<\/p>\n<p>\u8fdb\u7a0b\u4fe1\u606f\u533a<\/p>\n<p>\u7edf\u8ba1\u4fe1\u606f\u533a\u57df\u7684\u4e0b\u65b9\u663e\u793a\u4e86\u5404\u4e2a\u8fdb\u7a0b\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u9996\u5148\u6765\u8ba4\u8bc6\u4e00\u4e0b\u5404\u5217\u7684\u542b\u4e49\u3002<\/p>\n<p>\u5e8f\u53f7 \u5217\u540d \u542b\u4e49<br \/>\na PID \u8fdb\u7a0bid<br \/>\nb PPID \u7236\u8fdb\u7a0bid<br \/>\nc RUSER Real user name<br \/>\nd UID \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237id<br \/>\ne USER \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237\u540d<br \/>\nf GROUP \u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7ec4\u540d<br \/>\ng TTY \u542f\u52a8\u8fdb\u7a0b\u7684\u7ec8\u7aef\u540d\u3002\u4e0d\u662f\u4ece\u7ec8\u7aef\u542f\u52a8\u7684\u8fdb\u7a0b\u5219\u663e\u793a\u4e3a ?<br \/>\nh PR \u4f18\u5148\u7ea7<br \/>\ni NI nice\u503c\u3002\u8d1f\u503c\u8868\u793a\u9ad8\u4f18\u5148\u7ea7\uff0c\u6b63\u503c\u8868\u793a\u4f4e\u4f18\u5148\u7ea7<\/p>\n<p>j P \u6700\u540e\u4f7f\u7528\u7684CPU\uff0c\u4ec5\u5728\u591aCPU\u73af\u5883\u4e0b\u6709\u610f\u4e49<br \/>\nk %CPU \u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4<br \/>\nl TIME \u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d\u79d2<br \/>\nm TIME+ \u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d1\/100\u79d2<br \/>\nn %MEM \u8fdb\u7a0b\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u767e\u5206\u6bd4<br \/>\no VIRT \u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u603b\u91cf\uff0c\u5355\u4f4dkb\u3002VIRT=SWAP+RES<br \/>\np SWAP \u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u4e2d\uff0c\u88ab\u6362\u51fa\u7684\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002<br \/>\nq RES \u8fdb\u7a0b\u4f7f\u7528\u7684\u3001\u672a\u88ab\u6362\u51fa\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002RES=CODE+DATA<br \/>\nr CODE \u53ef\u6267\u884c\u4ee3\u7801\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<br \/>\ns DATA \u53ef\u6267\u884c\u4ee3\u7801\u4ee5\u5916\u7684\u90e8\u5206(\u6570\u636e\u6bb5+\u6808)\u5360\u7528\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<br \/>\nt SHR \u5171\u4eab\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<br \/>\nu nFLT \u9875\u9762\u9519\u8bef\u6b21\u6570<br \/>\nv nDRT \u6700\u540e\u4e00\u6b21\u5199\u5165\u5230\u73b0\u5728\uff0c\u88ab\u4fee\u6539\u8fc7\u7684\u9875\u9762\u6570\u3002<br \/>\nw S \u8fdb\u7a0b\u72b6\u6001\u3002<br \/>\nD=\u4e0d\u53ef\u4e2d\u65ad\u7684\u7761\u7720\u72b6\u6001<br \/>\nR=\u8fd0\u884c<br \/>\nS=\u7761\u7720<br \/>\nT=\u8ddf\u8e2a\/\u505c\u6b62<br \/>\nZ=\u50f5\u5c38\u8fdb\u7a0b<br \/>\nx COMMAND \u547d\u4ee4\u540d\/\u547d\u4ee4\u884c<br \/>\ny WCHAN \u82e5\u8be5\u8fdb\u7a0b\u5728\u7761\u7720\uff0c\u5219\u663e\u793a\u7761\u7720\u4e2d\u7684\u7cfb\u7edf\u51fd\u6570\u540d<br \/>\nz Flags \u4efb\u52a1\u6807\u5fd7\uff0c\u53c2\u8003 sched.h<br \/>\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4ec5\u663e\u793a\u6bd4\u8f83\u91cd\u8981\u7684 PID\u3001USER\u3001PR\u3001NI\u3001VIRT\u3001RES\u3001SHR\u3001S\u3001%CPU\u3001%MEM\u3001TIME+\u3001COMMAND \u5217\u3002\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u5feb\u6377\u952e\u6765\u66f4\u6539\u663e\u793a\u5185\u5bb9\u3002<\/p>\n<p>\u66f4\u6539\u663e\u793a\u5185\u5bb9<\/p>\n<p>\u901a\u8fc7 f \u952e\u53ef\u4ee5\u9009\u62e9\u663e\u793a\u7684\u5185\u5bb9\u3002\u6309 f \u952e\u4e4b\u540e\u4f1a\u663e\u793a\u5217\u7684\u5217\u8868\uff0c\u6309 a-z \u5373\u53ef\u663e\u793a\u6216\u9690\u85cf\u5bf9\u5e94\u7684\u5217\uff0c\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n<p>\u6309 o \u952e\u53ef\u4ee5\u6539\u53d8\u5217\u7684\u663e\u793a\u987a\u5e8f\u3002\u6309\u5c0f\u5199\u7684 a-z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u53f3\u79fb\u52a8\uff0c\u800c\u5927\u5199\u7684 A-Z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u5de6\u79fb\u52a8\u3002\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n<p>\u6309\u5927\u5199\u7684 F \u6216 O \u952e\uff0c\u7136\u540e\u6309 a-z \u53ef\u4ee5\u5c06\u8fdb\u7a0b\u6309\u7167\u76f8\u5e94\u7684\u5217\u8fdb\u884c\u6392\u5e8f\u3002\u800c\u5927\u5199\u7684 R \u952e\u53ef\u4ee5\u5c06\u5f53\u524d\u7684\u6392\u5e8f\u5012\u8f6c\u3002<\/p>\n<p>\u547d\u4ee4\u4f7f\u7528<\/p>\n<p>1\uff0e \u5de5\u5177\uff08\u547d\u4ee4\uff09\u540d\u79f0<br \/>\ntop<br \/>\n2\uff0e\u5de5\u5177\uff08\u547d\u4ee4\uff09\u4f5c\u7528<br \/>\n\u663e\u793a\u7cfb\u7edf\u5f53\u524d\u7684\u8fdb\u7a0b\u548c\u5176\u4ed6\u72b6\u51b5\uff1b top\u662f\u4e00\u4e2a\u52a8\u6001\u663e\u793a\u8fc7\u7a0b,\u5373\u53ef\u4ee5\u901a\u8fc7\u7528\u6237\u6309\u952e\u6765\u4e0d\u65ad\u5237\u65b0\u5f53\u524d\u72b6\u6001.\u5982\u679c\u5728\u524d\u53f0\u6267\u884c\u8be5\u547d\u4ee4,\u5b83\u5c06\u72ec\u5360\u524d\u53f0,\u76f4\u5230\u7528\u6237\u7ec8\u6b62\u8be5\u7a0b\u5e8f\u4e3a\u6b62. 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