{"id":35224,"date":"2026-10-18T08:00:33","date_gmt":"2026-10-18T00:00:33","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-sc\/how-to-use-strace-to-trace-system-calls-of-a-process\/"},"modified":"2026-10-16T10:32:58","modified_gmt":"2026-10-16T02:32:58","slug":"how-to-use-strace-to-trace-system-calls-of-a-process","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/sc\/hong-kong-dedicated-server-sc\/how-to-use-strace-to-trace-system-calls-of-a-process\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 strace \u8ddf\u8e2a\u8fdb\u7a0b\u7684\u7cfb\u7edf\u8c03\u7528"},"content":{"rendered":"

Strace \u662f\u4e00\u6b3e Linux \u547d\u4ee4\u884c\u5de5\u5177\uff0c\u5b83\u501f\u52a9 ptrace()<\/code> \u7cfb\u7edf\u8c03\u7528\u5b9e\u65f6\u62e6\u622a\u7cfb\u7edf\u8c03\u7528\u548c\u4fe1\u53f7\uff0c\u80fd\u591f\u7cbe\u786e\u5c55\u793a\u4e00\u4e2a\u8fdb\u7a0b\u5728\u670d\u52a1\u5668\u4e0a\u7684\u5b9e\u9645\u884c\u4e3a\u3002\u56e0\u6b64\uff0cstrace \u662f\u8c03\u8bd5\u4e0e\u6545\u969c\u6392\u67e5\u3001\u6027\u80fd\u8c03\u4f18\u4ee5\u53ca\u5b89\u5168\u5206\u6790\u4e2d\u7684\u91cd\u8981\u5de5\u5177\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 strace \u6765\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\uff0c\u4ece\u57fa\u7840\u547d\u4ee4\u5230\u9ad8\u7ea7\u8f93\u51fa\u7ba1\u7406\u90fd\u80fd\u8986\u76d6\u3002\u5f53\u4f60\u5728 Linux \u670d\u52a1\u5668<\/a>\u4e0a\u8c03\u8bd5\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0cstrace \u80fd\u663e\u793a\u6bcf\u4e00\u6b21\u6587\u4ef6\u6253\u5f00\u3001\u7f51\u7edc\u8bfb\u53d6\u548c\u5185\u5b58\u5206\u914d<\/a>\u3002\u8fd9\u79cd\u53ef\u89c1\u6027\u8ba9\u6392\u969c\u4ece\u201c\u731c\u6d4b\u201d\u53d8\u6210\u201c\u7cbe\u51c6\u8bca\u65ad\u201d\u3002\u4f60\u5c06\u5b66\u4f1a\u5982\u4f55\u5728\u4e0d\u91cd\u542f\u670d\u52a1\u7684\u60c5\u51b5\u4e0b\uff0c\u5bf9\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\u8fdb\u884c\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528 strace \u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528<\/strong><\/h2>\n

\u8ddf\u8e2a\u67d0\u4e2a\u547d\u4ee4\u53d1\u8d77\u7684\u7cfb\u7edf\u8c03\u7528<\/h3>\n

\u4f7f\u7528 strace \u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u5c31\u662f\u76f4\u63a5\u901a\u8fc7\u5b83\u6765\u8fd0\u884c\u76ee\u6807\u547d\u4ee4\u3002\u4f60\u53ea\u9700\u8f93\u5165 strace<\/code>\uff0c\u540e\u9762\u8ddf\u4e0a\u4f60\u60f3\u89c2\u5bdf\u7684\u547d\u4ee4\u3002\u4f8b\u5982\uff0cstrace ls -l<\/code> \u4f1a\u5728\u6267\u884c ls<\/code> \u547d\u4ee4\u7684\u540c\u65f6\uff0c\u6355\u83b7\u5b83\u53d1\u8d77\u7684\u6bcf\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528\u3002\u8be5\u5de5\u5177\u4f1a\u8bb0\u5f55\u7a0b\u5e8f\u4e0e Linux \u5185\u6838\u4e4b\u95f4\u7684\u6bcf\u4e00\u6b21\u4ea4\u4e92\u3002\u4f60\u53ef\u4ee5\u770b\u5230\u6587\u4ef6\u6253\u5f00\u3001\u76ee\u5f55\u8bfb\u53d6\u3001\u5185\u5b58\u6620\u5c04\u4ee5\u53ca\u8fdb\u7a0b\u9000\u51fa\u7b49\u64cd\u4f5c\u3002\u8fd9\u79cd\u65b9\u5f0f\u975e\u5e38\u9002\u5408\u90a3\u4e9b\u751f\u547d\u5468\u671f\u8f83\u77ed\u3001\u5e0c\u671b\u7acb\u5373\u770b\u5230\u7ed3\u679c\u7684\u547d\u4ee4\u3002<\/p>\n

\u5176\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1astrace \/path\/to\/program<\/code>\u3002\u4f60\u53ef\u4ee5\u7528\u8fd9\u79cd\u65b9\u5f0f\u8ddf\u8e2a\u4efb\u610f\u53ef\u6267\u884c\u6587\u4ef6\u3002\u6267\u884c\u8be5\u547d\u4ee4\u540e\uff0cstrace \u4f1a\u5c06\u76ee\u6807\u7a0b\u5e8f\u4f5c\u4e3a\u5b50\u8fdb\u7a0b\u542f\u52a8\uff0c\u5e76\u62e6\u622a\u7a0b\u5e8f\u53d1\u9001\u7ed9\u5185\u6838\u7684\u6bcf\u4e00\u4e2a\u8bf7\u6c42\u3002\u8f93\u51fa\u4e2d\u7684\u6bcf\u4e00\u884c\u90fd\u4f1a\u663e\u793a\u7cfb\u7edf\u8c03\u7528\u540d\u79f0\u3001\u53c2\u6570\u4ee5\u53ca\u8fd4\u56de\u503c\u3002\u8fd9\u4e9b\u8f93\u51fa\u80fd\u5e2e\u52a9\u4f60\u5b8c\u6574\u4e86\u89e3\u7a0b\u5e8f\u7684\u8fd0\u884c\u884c\u4e3a\u3002\u4f60\u53ef\u4ee5\u501f\u6b64\u53d1\u73b0\u7f3a\u5931\u6587\u4ef6\u3001\u6743\u9650\u9519\u8bef\u6216\u610f\u6599\u4e4b\u5916\u7684\u7f51\u7edc\u8fde\u63a5\u3002\u547d\u4ee4\u4f1a\u6301\u7eed\u8fd0\u884c\uff0c\u76f4\u5230\u6b63\u5e38\u9000\u51fa\u6216\u53d1\u751f\u5d29\u6e83\u3002\u968f\u540e\uff0cstrace \u4f1a\u5728\u7ec8\u7aef\u4e2d\u6253\u5370\u6700\u7ec8\u7ed3\u679c\u6458\u8981\u3002<\/p>\n

\u8fd9\u79cd\u65b9\u6cd5\u6700\u9002\u5408\u7528\u4e8e\u8c03\u8bd5\u811a\u672c\u3001\u6d4b\u8bd5\u65b0\u8f6f\u4ef6\uff0c\u6216\u8005\u7406\u89e3\u67d0\u4e2a\u5de5\u5177\u7684\u5185\u90e8\u884c\u4e3a\u3002\u4f60\u8fd8\u53ef\u4ee5\u7ed3\u5408\u5176\u4ed6\u9009\u9879\u5bf9\u7ed3\u679c\u8fdb\u884c\u8fc7\u6ee4\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u80fd\u53ea\u60f3\u8ddf\u8e2a\u4e0e\u6587\u4ef6\u76f8\u5173\u7684\u64cd\u4f5c\uff0c\u6216\u8005\u53ea\u5173\u6ce8\u7f51\u7edc\u6d3b\u52a8\u3002\u5173\u952e\u5728\u4e8e\uff0c\u4f60\u53ef\u4ee5\u4ece\u5934\u5230\u5c3e\u638c\u63a7\u6574\u4e2a\u6267\u884c\u8fc7\u7a0b\uff0c\u65e0\u9700\u731c\u6d4b\u7a0b\u5e8f\u6bcf\u4e00\u6b65\u505a\u4e86\u4ec0\u4e48\u3002<\/p>\n

\u9644\u52a0\u5230\u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b<\/h3>\n

\u5728\u670d\u52a1\u5668\u73af\u5883\u4e2d\uff0c\u4f60\u7ecf\u5e38\u9700\u8981\u8bca\u65ad\u4e00\u4e2a\u5df2\u7ecf\u5728\u8fd0\u884c\u7684\u670d\u52a1\uff0c\u800c\u4e0d\u80fd\u7b80\u5355\u5730\u91cd\u542f\u5b83\u540e\u518d\u8fdb\u884c\u8ddf\u8e2a\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 -p<\/code> \u9009\u9879\u9644\u52a0\u5230\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\u3002\u8bed\u6cd5\u662f strace -p PID<\/code>\uff0c\u5176\u4e2d PID \u8868\u793a\u8fdb\u7a0b ID\u3002\u4f60\u5fc5\u987b\u5148\u77e5\u9053\u8981\u68c0\u67e5\u7684\u8fdb\u7a0b\u53f7\uff0c\u53ef\u4ee5\u901a\u8fc7 ps<\/code> \u6216 pgrep<\/code> \u7b49\u547d\u4ee4\u6765\u83b7\u53d6\u3002\u4f8b\u5982\uff0cpgrep nginx<\/code> \u4f1a\u8fd4\u56de\u6bcf\u4e2a nginx \u5de5\u4f5c\u8fdb\u7a0b\u7684 PID\u3002<\/p>\n

\u4e00\u65e6\u9644\u52a0\u6210\u529f\uff0cstrace \u5c31\u4f1a\u4ece\u90a3\u4e00\u523b\u5f00\u59cb\u6355\u83b7\u8be5\u8fdb\u7a0b\u53d1\u8d77\u7684\u6240\u6709\u7cfb\u7edf\u8c03\u7528\u3002\u88ab\u8ddf\u8e2a\u7684\u8fdb\u7a0b\u4f1a\u7ee7\u7eed\u6b63\u5e38\u8fd0\u884c\uff0c\u4e0d\u4f1a\u4e2d\u65ad\u73b0\u6709\u5de5\u4f5c\uff0c\u4e5f\u4e0d\u4f1a\u5bfc\u81f4\u505c\u673a\u3002\u8fd9\u9879\u80fd\u529b\u5bf9\u4e8e\u751f\u4ea7\u73af\u5883\u670d\u52a1\u5668\u5c24\u4e3a\u5b9d\u8d35\u3002\u4f60\u53ef\u4ee5\u89c2\u5bdf Web \u670d\u52a1\u5668\u5982\u4f55\u5904\u7406\u8bf7\u6c42\u3001\u6570\u636e\u5e93\u5982\u4f55\u6267\u884c\u67e5\u8be2\uff0c\u6216\u5e94\u7528\u7a0b\u5e8f\u5982\u4f55\u5199\u5165\u65e5\u5fd7\u3002\u8be5\u5de5\u5177\u4f9d\u8d56 ptrace()<\/code> \u7cfb\u7edf\u8c03\u7528\u6765\u9644\u52a0\u5230\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u3002\u5728 Linux \u4e2d\uff0c\u53ea\u8981\u4f60\u5177\u5907\u9002\u5f53\u6743\u9650\uff0c\u901a\u5e38\u662f root \u7528\u6237\u6216\u4e0e\u76ee\u6807\u8fdb\u7a0b\u76f8\u540c\u7684\u7528\u6237\uff0c\u5c31\u53ef\u4ee5\u6267\u884c\u6b64\u64cd\u4f5c\u3002<\/p>\n

\u4f60\u4e5f\u53ef\u4ee5\u5206\u522b\u9644\u52a0\u5230\u591a\u4e2a\u7279\u5b9a\u8fdb\u7a0b\u4e0a\u9010\u4e00\u8ddf\u8e2a\u3002\u5982\u679c\u67d0\u4e2a\u670d\u52a1\u4f1a\u751f\u6210\u591a\u4e2a worker \u8fdb\u7a0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5206\u522b\u9644\u52a0\u5230\u6bcf\u4e00\u4e2a\u8fdb\u7a0b\u3002\u6b64\u65f6\uff0c-f<\/code> \u9009\u9879\u5c31\u5f88\u6709\u5e2e\u52a9\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u81ea\u52a8\u8ddf\u8e2a\u5b50\u8fdb\u7a0b\u3002\u4e0d\u8fc7\uff0c\u5982\u679c\u4f60\u53ea\u9700\u8981\u89c2\u5bdf\u67d0\u4e00\u4e2a\u8fdb\u7a0b\uff0cstrace -p PID<\/code> \u5c31\u80fd\u63d0\u4f9b\u8db3\u591f\u805a\u7126\u7684\u53ef\u89c1\u6027\u3002\u4f60\u53ef\u4ee5\u5b9e\u65f6\u770b\u5230\u7cfb\u7edf\u8c03\u7528\u53d1\u751f\u7684\u5168\u8fc7\u7a0b\u3002\u89c2\u5bdf\u7ed3\u675f\u540e\uff0c\u6309\u4e0b Ctrl+C \u5373\u53ef\u5206\u79bb\u3002\u76ee\u6807\u8fdb\u7a0b\u4f1a\u7ee7\u7eed\u8fd0\u884c\uff0c\u4e0d\u53d7\u5f71\u54cd\u3002\u8fd9\u79cd\u975e\u4fb5\u5165\u5f0f\u65b9\u5f0f\u8ba9 strace \u6210\u4e3a\u7e41\u5fd9\u670d\u52a1\u5668\u4e0a\u7684\u5f3a\u5927\u8bca\u65ad\u5de5\u5177\u3002\u4f60\u53ef\u4ee5\u5728\u4e0d\u5f71\u54cd\u4e1a\u52a1\u8fd0\u884c\u7684\u524d\u63d0\u4e0b\uff0c\u6d1e\u5bdf\u5b9e\u65f6\u884c\u4e3a\u3002<\/p>\n

Linux \u4e2d strace \u7684\u6838\u5fc3\u9009\u9879<\/strong><\/h2>\n

\u8ddf\u8e2a\u5b50\u8fdb\u7a0b<\/h3>\n

\u8bb8\u591a\u670d\u52a1\u5668\u5e94\u7528\u5e76\u4e0d\u662f\u5355\u8fdb\u7a0b\u8fd0\u884c\u7684\u3002\u50cf Apache \u6216 Nginx \u8fd9\u6837\u7684 Web \u670d\u52a1\u5668\u4f1a\u521b\u5efa\u591a\u4e2a worker \u8fdb\u7a0b\u6765\u5904\u7406\u5e76\u53d1\u8bf7\u6c42\u3002\u6570\u636e\u5e93\u4e5f\u53ef\u80fd fork \u51fa\u8f85\u52a9\u8fdb\u7a0b\u6765\u6267\u884c\u540e\u53f0\u4efb\u52a1\u3002\u5982\u679c\u4f60\u53ea\u8ddf\u8e2a\u4e3b\u8fdb\u7a0b\uff0c\u5c31\u4f1a\u9519\u8fc7\u8fd9\u4e9b worker \u4e2d\u53d1\u751f\u7684\u5927\u91cf\u6d3b\u52a8\u3002-f<\/code> \u9009\u9879\u6b63\u662f\u4e3a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u800c\u8bbe\u8ba1\u7684\u3002\u5b83\u4f1a\u544a\u8bc9 strace \u8ddf\u8e2a\u7531 fork\u3001clone \u6216 vfork \u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u3002\u4e00\u65e6\u6709\u65b0\u8fdb\u7a0b\u51fa\u73b0\uff0cstrace \u5c31\u4f1a\u81ea\u52a8\u5f00\u59cb\u5bf9\u5176\u8fdb\u884c\u8ddf\u8e2a\u3002<\/p>\n

\u4f60\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528\u8be5\u9009\u9879\uff1astrace -f -p PID<\/code>\u3002\u8be5\u5de5\u5177\u4f1a\u5148\u9644\u52a0\u5230\u4e3b\u8fdb\u7a0b\uff0c\u7136\u540e\u7ee7\u7eed\u89c2\u5bdf\u5b83\u521b\u5efa\u7684\u6bcf\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u3002\u8fd9\u9879\u80fd\u529b\u5bf9\u4e8e\u8ddf\u8e2a\u4f1a\u6d3e\u751f worker \u7684\u670d\u52a1\u5668\u7a0b\u5e8f\u81f3\u5173\u91cd\u8981\u3002\u5982\u679c\u4e0d\u52a0 -f<\/code>\uff0c\u4f60\u53ea\u80fd\u770b\u5230\u7236\u8fdb\u7a0b\u7684\u7cfb\u7edf\u8c03\u7528\uff1b\u52a0\u4e0a\u5b83\u540e\uff0c\u4f60\u5c31\u80fd\u83b7\u5f97\u6574\u4e2a\u8fdb\u7a0b\u6811\u7684\u5b8c\u6574\u89c6\u56fe\u3002\u8f93\u51fa\u4e2d\u4f1a\u4e3a\u6bcf\u6b21\u7cfb\u7edf\u8c03\u7528\u6807\u6ce8\u53d1\u8d77\u8be5\u8c03\u7528\u7684 PID\uff0c\u56e0\u6b64\u4f60\u53ef\u4ee5\u8f7b\u677e\u533a\u5206\u4e3b\u8fdb\u7a0b\u548c\u5176\u5b50\u8fdb\u7a0b\u3002<\/p>\n

\u4ee5 PHP-FPM \u670d\u52a1\u5668\u5904\u7406 Web \u8bf7\u6c42\u4e3a\u4f8b\uff1a\u4e3b\u8fdb\u7a0b\u63a5\u6536\u8fde\u63a5\uff0c\u5e76\u5c06\u4efb\u52a1\u5206\u914d\u7ed9 worker \u8fdb\u7a0b\u3002\u5982\u679c\u4e0d\u4f7f\u7528 -f<\/code>\uff0c\u4f60\u770b\u5230\u7684\u53ea\u6709\u4e3b\u8fdb\u7a0b\u7684\u6d3b\u52a8\uff1b\u800c\u6dfb\u52a0 -f<\/code> \u540e\uff0c\u4f60\u5c31\u80fd\u7cbe\u786e\u770b\u5230\u6bcf\u4e2a worker \u662f\u5982\u4f55\u5904\u7406\u6bcf\u4e00\u4e2a\u8bf7\u6c42\u7684\u3002\u4f60\u53ef\u4ee5\u770b\u5230\u8de8 worker \u7684\u6587\u4ef6\u8bfb\u53d6\u3001\u6570\u636e\u5e93\u67e5\u8be2\u548c\u7f51\u7edc\u64cd\u4f5c\u3002\u8fd9\u79cd\u53ef\u89c1\u6027\u6709\u52a9\u4e8e\u4f60\u8bc6\u522b\u7279\u5b9a worker \u8fdb\u7a0b\u4e2d\u7684\u74f6\u9888\u6216\u9519\u8bef\u3002<\/p>\n

\u8fc7\u6ee4\u7cfb\u7edf\u8c03\u7528<\/h3>\n

\u7e41\u5fd9\u7684\u670d\u52a1\u5668\u6bcf\u79d2\u4f1a\u4ea7\u751f\u6210\u5343\u4e0a\u4e07\u6b21\u7cfb\u7edf\u8c03\u7528\u3002\u5982\u679c\u5168\u90e8\u8ddf\u8e2a\uff0c\u8f93\u51fa\u91cf\u4f1a\u6781\u5176\u5e9e\u5927\uff0c\u53cd\u800c\u63a9\u76d6\u4f60\u771f\u6b63\u9700\u8981\u7684\u4fe1\u606f\u3002-e trace=<\/code> \u9009\u9879\u53ef\u4ee5\u5c06\u8ddf\u8e2a\u8303\u56f4\u9650\u5b9a\u5728\u7279\u5b9a\u7684\u7cfb\u7edf\u8c03\u7528\u4e0a\u3002\u4f60\u53ea\u9700\u6307\u5b9a\u81ea\u5df1\u611f\u5174\u8da3\u7684\u8c03\u7528\uff0cstrace \u5c31\u4f1a\u5ffd\u7565\u5176\u4ed6\u5185\u5bb9\u3002\u4f8b\u5982\uff0cstrace -e trace=open,read,write<\/code> \u53ea\u4f1a\u6355\u83b7\u6587\u4ef6\u64cd\u4f5c\u548c\u6570\u636e\u4f20\u8f93\u76f8\u5173\u7684\u7cfb\u7edf\u8c03\u7528\u3002\u8fd9\u79cd\u805a\u7126\u5f0f\u65b9\u6cd5\u80fd\u6709\u6548\u51cf\u5c11\u566a\u97f3\uff0c\u7a81\u51fa\u5173\u952e\u884c\u4e3a\u3002<\/p>\n

\u4f60\u4e5f\u53ef\u4ee5\u6309\u7c7b\u522b\u800c\u4e0d\u662f\u5355\u4e2a\u8c03\u7528\u6765\u8fc7\u6ee4\u3002%process<\/code> \u7c7b\u522b\u5305\u542b fork\u3001wait \u548c exec \u7b49\u8fdb\u7a0b\u7ba1\u7406\u76f8\u5173\u8c03\u7528\u3002\u4f7f\u7528 -e trace=%process<\/code> \u53ef\u4ee5\u67e5\u770b\u4e00\u4e2a\u7a0b\u5e8f\u662f\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406\u5b50\u8fdb\u7a0b\u7684\u3002%signal<\/code> \u7c7b\u522b\u6db5\u76d6 kill \u548c sigaction \u7b49\u4e0e\u4fe1\u53f7\u76f8\u5173\u7684\u8c03\u7528\uff0c\u8fd9\u6709\u52a9\u4e8e\u4f60\u8c03\u8bd5\u4fe1\u53f7\u5904\u7406\u95ee\u9898\u3002%pure<\/code> \u7c7b\u522b\u5219\u5305\u542b\u90a3\u4e9b\u603b\u662f\u6210\u529f\u4e14\u4e0d\u5e26\u53c2\u6570\u7684\u7cfb\u7edf\u8c03\u7528\uff0c\u4f8b\u5982 getpid\u3002\u8fd9\u7c7b\u8c03\u7528\u901a\u5e38\u5f88\u5c11\u6210\u4e3a\u95ee\u9898\u6839\u6e90\uff0c\u56e0\u6b64\u8fc7\u6ee4\u6389\u5b83\u4eec\u80fd\u591f\u51cf\u5c11\u8f93\u51fa\u5e72\u6270\u3002<\/p>\n

\u5c06\u8fd9\u4e9b\u8fc7\u6ee4\u5668\u4e0e -f<\/code> \u7ed3\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u5b9e\u73b0\u975e\u5e38\u7cbe\u7ec6\u7684\u63a7\u5236\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u53ea\u8ddf\u8e2a\u6240\u6709\u5b50\u8fdb\u7a0b\u4e2d\u7684\u7f51\u7edc\u76f8\u5173\u8c03\u7528\u3002\u547d\u4ee4 strace -f -e trace=network -p PID<\/code> \u4f1a\u6355\u83b7\u6bcf\u4e2a worker \u7684 socket \u64cd\u4f5c\u3002\u8fd9\u79cd\u5b9a\u5411\u8ddf\u8e2a\u65b9\u5f0f\u975e\u5e38\u9002\u5408\u7528\u4e8e\u8bca\u65ad\u8fde\u63a5\u95ee\u9898\u6216\u6027\u80fd\u5f02\u5e38\u3002<\/p>\n

\u5982\u679c\u4f60\u9700\u8981\u4fdd\u5b58\u7ed3\u679c\uff0c\u53ef\u4f7f\u7528 -o<\/code> \u9009\u9879\u5e76\u6307\u5b9a\u6587\u4ef6\u540d\u3002\u8fd9\u6837\uff0c\u8ddf\u8e2a\u8f93\u51fa\u5c31\u4f1a\u5199\u5165\u6587\u4ef6\uff0c\u800c\u4e0d\u662f\u663e\u793a\u5728\u7ec8\u7aef\u4e2d\u3002\u547d\u4ee4 strace -o trace.log -p PID<\/code> \u4f1a\u5c06\u6240\u6709\u6355\u83b7\u5230\u7684\u6570\u636e\u5199\u5165 trace.log\u3002\u4f60\u53ef\u4ee5\u7a0d\u540e\u518d\u67e5\u770b\u8fd9\u4e2a\u6587\u4ef6\uff0c\u6216\u8005\u5206\u4eab\u7ed9\u540c\u4e8b\u3002\u5c06\u8f93\u51fa\u5199\u5165\u6587\u4ef6\u8fd8\u80fd\u907f\u514d\u8ddf\u8e2a\u4fe1\u606f\u4e0e\u7ec8\u7aef\u4e2d\u7684\u6b63\u5e38\u663e\u793a\u5185\u5bb9\u6df7\u5728\u4e00\u8d77\u3002\u5bf9\u4e8e\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u8ddf\u8e2a\u4efb\u52a1\uff0c\u4f60\u53ef\u4ee5\u628a\u8ddf\u8e2a\u7ed3\u679c\u91cd\u5b9a\u5411\u5230\u6587\u672c\u6587\u4ef6\u4e2d\uff0c\u5728\u5206\u79bb\u540e\u518d\u8fdb\u884c\u5206\u6790\u3002\u8fd9\u79cd\u65b9\u6cd5\u65e2\u80fd\u4fdd\u6301\u7ec8\u7aef\u6574\u6d01\uff0c\u4e5f\u80fd\u4fdd\u7559\u6570\u636e\u4ee5\u4fbf\u6df1\u5165\u68c0\u67e5\u3002-o<\/code> \u9009\u9879\u53ef\u4ee5\u4e0e\u6240\u6709\u5176\u4ed6\u8fc7\u6ee4\u5668\u914d\u5408\u4f7f\u7528\uff0c\u56e0\u6b64\u4f60\u4e5f\u53ef\u4ee5\u53ea\u4fdd\u5b58\u81ea\u5df1\u771f\u6b63\u5173\u5fc3\u7684\u90a3\u4e9b\u7cfb\u7edf\u8c03\u7528\u3002<\/p>\n

\u4f7f\u7528 strace \u5206\u6790\u6027\u80fd<\/strong><\/h2>\n

\u7cfb\u7edf\u8c03\u7528\u6c47\u603b<\/h3>\n

\u4f60\u8fd8\u53ef\u4ee5\u501f\u52a9 -c<\/code> \u9009\u9879\uff0c\u5c06 strace \u53d8\u6210\u4e00\u4e2a\u6027\u80fd\u5206\u6790\u5de5\u5177\u3002\u8fd9\u4e2a\u53c2\u6570\u4e0d\u4f1a\u8f93\u51fa\u9010\u884c\u8ddf\u8e2a\u7ed3\u679c\uff0c\u800c\u662f\u751f\u6210\u4e00\u5f20\u6c47\u603b\u8868\u3002\u8868\u683c\u4f1a\u663e\u793a\u6bcf\u79cd\u7cfb\u7edf\u8c03\u7528\u7684\u6b21\u6570\u3001\u9519\u8bef\u6570\u91cf\u4ee5\u53ca\u603b\u8017\u65f6\u3002\u8fd9\u6837\u4f60\u5c31\u80fd\u5feb\u901f\u770b\u51fa\u54ea\u4e9b\u64cd\u4f5c\u5360\u636e\u4e86\u4e3b\u8981\u5f00\u9500\uff0c\u800c\u65e0\u9700\u9605\u8bfb\u6210\u5343\u4e0a\u4e07\u884c\u7ec6\u8282\u3002<\/p>\n

\u8fd0\u884c strace -c -p PID<\/code> \u5373\u53ef\u9644\u52a0\u5230\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\u5e76\u5f00\u59cb\u91c7\u96c6\u6570\u636e\u3002\u8ba9\u8ddf\u8e2a\u8fd0\u884c\u51e0\u79d2\u949f\u6216\u51e0\u5206\u949f\u540e\uff0c\u6309\u4e0b Ctrl+C\uff0cstrace \u5c31\u4f1a\u5728\u7ec8\u7aef\u4e2d\u6253\u5370\u6c47\u603b\u8868\u3002\u8be5\u8868\u901a\u5e38\u6309\u8017\u65f6\u6392\u5e8f\u3002\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0 read<\/code> \u64cd\u4f5c\u5360\u636e\u4e86 80% \u7684\u65f6\u95f4\uff0c\u6216\u8005\u770b\u5230 poll<\/code> \u8c03\u7528\u5360\u4e3b\u5bfc\u5730\u4f4d\uff0c\u8fd9\u901a\u5e38\u610f\u5473\u7740\u8fdb\u7a0b\u5904\u4e8e\u7a7a\u95f2\u7b49\u5f85\u72b6\u6001\u3002\u8fd9\u4e9b\u4fe1\u606f\u80fd\u5e2e\u52a9\u4f60\u628a\u4f18\u5316\u7cbe\u529b\u96c6\u4e2d\u5230\u771f\u6b63\u7684\u95ee\u9898\u533a\u57df\u3002<\/p>\n

\u6c47\u603b\u8868\u8fd8\u4f1a\u663e\u793a\u6bcf\u79cd\u7cfb\u7edf\u8c03\u7528\u7684\u9519\u8bef\u8ba1\u6570\u3002\u5982\u679c open<\/code> \u6216 connect<\/code> \u7684\u9519\u8bef\u6570\u5f88\u9ad8\uff0c\u5f80\u5f80\u8bf4\u660e\u5b58\u5728\u914d\u7f6e\u95ee\u9898\u3002\u770b\u5230\u8fd9\u79cd\u6a21\u5f0f\u540e\uff0c\u4f60\u5c31\u53ef\u4ee5\u8fdb\u4e00\u6b65\u8c03\u67e5\u8fd9\u4e9b\u5931\u8d25\u8c03\u7528\u3002-c<\/code> \u9009\u9879\u4e5f\u53ef\u4ee5\u4e0e -f<\/code> \u4e00\u8d77\u4f7f\u7528\uff0c\u4ece\u800c\u628a\u5b50\u8fdb\u7a0b\u7eb3\u5165\u7edf\u8ba1\u6c47\u603b\u4e2d\u3002\u8fd9\u6837\uff0c\u4f60\u5c31\u80fd\u5bf9\u6574\u4e2a\u8fdb\u7a0b\u6811\u8fdb\u884c\u6027\u80fd\u5206\u6790\uff0c\u4ece\u6240\u6709 worker \u7684\u89d2\u5ea6\u83b7\u5f97\u5b8c\u6574\u7684\u6027\u80fd\u753b\u50cf\u3002<\/p>\n

\u65f6\u95f4\u6233\u4e0e\u5ef6\u8fdf<\/h3>\n

\u6709\u65f6\uff0c\u4f60\u9700\u8981\u77e5\u9053\u6bcf\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528\u53d1\u751f\u7684\u5177\u4f53\u65f6\u95f4\u3002-t<\/code> \u9009\u9879\u4f1a\u4e3a\u8f93\u51fa\u4e2d\u7684\u6bcf\u4e00\u884c\u589e\u52a0\u65f6\u95f4\u6233\u3002\u6bcf\u4e2a\u65f6\u95f4\u6233\u90fd\u663e\u793a\u5f53\u5929\u65f6\u95f4\uff0c\u7cbe\u5ea6\u5230\u79d2\u3002\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u628a\u7cfb\u7edf\u8c03\u7528\u4e0e\u5916\u90e8\u4e8b\u4ef6\u5bf9\u5e94\u8d77\u6765\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u628a\u4e00\u6b21\u7f13\u6162\u7684\u6570\u636e\u5e93\u67e5\u8be2\u4e0e\u67d0\u4e2a\u7279\u5b9a\u7684 read<\/code> \u8c03\u7528\u5173\u8054\u8d77\u6765\u3002-tt<\/code> \u9009\u9879\u5219\u4f1a\u8fdb\u4e00\u6b65\u589e\u52a0\u5230\u5fae\u79d2\u7ea7\u7cbe\u5ea6\uff0c\u6709\u52a9\u4e8e\u63ed\u793a\u76f8\u5173\u7cfb\u7edf\u8c03\u7528\u4e4b\u95f4\u7684\u77ed\u6682\u5ef6\u8fdf\u3002<\/p>\n

-r<\/code> \u9009\u9879\u63d0\u4f9b\u76f8\u5bf9\u65f6\u95f4\u6233\u3002\u6bcf\u4e00\u884c\u90fd\u4f1a\u663e\u793a\u8ddd\u79bb\u4e0a\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528\u7ecf\u8fc7\u4e86\u591a\u957f\u65f6\u95f4\u3002\u8fd9\u79cd\u683c\u5f0f\u975e\u5e38\u9002\u5408\u7528\u6765\u53d1\u73b0\u64cd\u4f5c\u4e4b\u95f4\u7684\u5ef6\u8fdf\u3002\u4f60\u53ef\u4ee5\u6e05\u695a\u770b\u5230\u67d0\u6b21 write<\/code> \u8c03\u7528\u4e0e\u5bf9\u5e94\u7684 read<\/code> \u8c03\u7528\u4e4b\u95f4\u662f\u5426\u5b58\u5728\u8f83\u957f\u95f4\u9694\u3002\u8fd9\u6837\u7684\u95f4\u9694\u53ef\u80fd\u610f\u5473\u7740\u7f51\u7edc\u5ef6\u8fdf\uff0c\u4e5f\u53ef\u80fd\u8868\u793a\u78c1\u76d8 I\/O \u53d8\u6162\u3002\u76f8\u5bf9\u65f6\u95f4\u6233\u4f1a\u8ba9\u8fd9\u4e9b\u95ee\u9898\u4e00\u76ee\u4e86\u7136\u3002<\/p>\n

\u4f60\u8fd8\u53ef\u4ee5\u628a\u65f6\u95f4\u6233\u4e0e\u8fc7\u6ee4\u5668\u7ed3\u5408\u8d77\u6765\uff0c\u5c06\u6ce8\u610f\u529b\u96c6\u4e2d\u5230\u7279\u5b9a\u884c\u4e3a\u4e0a\u3002\u4f8b\u5982\uff0c\u53ea\u8ddf\u8e2a\u7f51\u7edc\u76f8\u5173\u8c03\u7528\u5e76\u6dfb\u52a0 -tt<\/code> \u4ee5\u83b7\u5f97\u5fae\u79d2\u7ea7\u7cbe\u5ea6\u3002\u8fd9\u6837\uff0c\u4f60\u5c31\u80fd\u51c6\u786e\u770b\u5230\u8fde\u63a5\u5ef6\u8fdf\u5177\u4f53\u53d1\u751f\u5728\u54ea\u4e00\u6b65\u3002\u4f60\u4e5f\u53ef\u4ee5\u628a\u8fd9\u4e9b\u8f93\u51fa\u4fdd\u5b58\u5230\u6587\u4ef6\u4e2d\uff0c\u4ee5\u4fbf\u540e\u7eed\u5206\u6790\u3002\u4fdd\u5b58\u540e\u7684\u6587\u4ef6\u4f1a\u4fdd\u7559\u65f6\u95f4\u6233\uff0c\u4ece\u800c\u5b8c\u6574\u4fdd\u7559\u65f6\u5e8f\u4fe1\u606f\u3002\u8fd9\u79cd\u505a\u6cd5\u4e5f\u6709\u52a9\u4e8e\u56e2\u961f\u8bb0\u5f55\u6027\u80fd\u95ee\u9898\uff0c\u5e76\u5728\u4fee\u6539\u540e\u5bf9\u6bd4\u4e0d\u540c\u65f6\u95f4\u70b9\u7684\u8ddf\u8e2a\u7ed3\u679c\uff0c\u4ee5\u8bc4\u4f30\u4f18\u5316\u6548\u679c\u3002<\/p>\n

\u5728\u7e41\u5fd9\u670d\u52a1\u5668\u4e0a\u7ba1\u7406\u5927\u91cf\u8f93\u51fa<\/strong><\/h2>\n

\u538b\u7f29\u8ddf\u8e2a\u8f93\u51fa<\/h3>\n

\u9ad8\u6d41\u91cf\u670d\u52a1\u5668\u5728\u8ddf\u8e2a\u671f\u95f4\u4f1a\u751f\u6210\u6d77\u91cf\u6570\u636e\u3002\u6bcf\u4e00\u6b21\u6587\u4ef6\u8bfb\u53d6\u3001\u7f51\u7edc\u6570\u636e\u5305\u5904\u7406\u4ee5\u53ca\u5185\u5b58\u64cd\u4f5c\uff0c\u90fd\u4f1a\u4ea7\u751f\u4e00\u884c\u6587\u672c\u3002\u5f53\u4f60\u8ddf\u8e2a\u7e41\u5fd9\u7684 Web \u670d\u52a1\u5668\u6216\u6570\u636e\u5e93\u65f6\uff0c\u78c1\u76d8\u7a7a\u95f4\u53ef\u80fd\u5f88\u5feb\u5c31\u88ab\u6d88\u8017\u6b86\u5c3d\u3002-C<\/code> \u9009\u9879\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5b83\u80fd\u591f\u5728\u5199\u51fa\u8ddf\u8e2a\u7ed3\u679c\u65f6\u5b9e\u65f6\u8fdb\u884c\u538b\u7f29\u3002\u8fd9\u4e2a\u53c2\u6570\u901a\u5e38\u4e0e -o<\/code> \u7ed3\u5408\u4f7f\u7528\uff0c\u628a\u538b\u7f29\u540e\u7684\u6570\u636e\u76f4\u63a5\u5199\u5165\u6587\u4ef6\u3002\u6700\u7ec8\u4f60\u5f97\u5230\u7684\u662f\u4e00\u4e2a .gz<\/code> \u6587\u4ef6\uff0c\u800c\u4e0d\u662f\u666e\u901a\u6587\u672c\u6587\u4ef6\u3002\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u663e\u8457\u51cf\u5c11\u5b58\u50a8\u5360\u7528\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u8ddf\u8e2a\u4e00\u4e2a\u6bcf\u79d2\u5904\u7406\u6570\u767e\u4e2a\u8bf7\u6c42\u7684\u8fdb\u7a0b\uff0c\u4e0d\u538b\u7f29\u7684\u8bdd\uff0c\u51e0\u5206\u949f\u5185\u5c31\u53ef\u80fd\u751f\u6210\u6570 GB \u7684\u6570\u636e\uff1b\u800c\u542f\u7528 -C<\/code> \u540e\uff0c\u8f93\u51fa\u4f53\u79ef\u4f1a\u660e\u663e\u7f29\u5c0f\u3002\u538b\u7f29\u662f\u5728 strace \u6355\u83b7\u6bcf\u4e00\u4e2a\u7cfb\u7edf\u8c03\u7528\u65f6\u5b9e\u65f6\u5b8c\u6210\u7684\uff0c\u56e0\u6b64\u4f60\u65e0\u9700\u5728\u4e8b\u540e\u518d\u624b\u52a8\u538b\u7f29\u6587\u4ef6\u3002\u5bf9\u4e8e\u751f\u4ea7\u670d\u52a1\u5668\u4e0a\u78c1\u76d8\u7a7a\u95f4\u6709\u9650\u7684\u573a\u666f\uff0c\u8fd9\u9879\u529f\u80fd\u5c24\u5176\u5b9e\u7528\u3002\u4f60\u53ef\u4ee5\u8fdb\u884c\u66f4\u957f\u65f6\u95f4\u7684\u8ddf\u8e2a\uff0c\u800c\u4e0d\u7528\u8fc7\u5ea6\u62c5\u5fc3\u6587\u4ef6\u7cfb\u7edf\u88ab\u5199\u6ee1\u3002<\/p>\n

\u8f6e\u8f6c\u957f\u671f\u8fd0\u884c\u7684\u8ddf\u8e2a\u6587\u4ef6<\/h3>\n

\u957f\u671f\u8fd0\u884c\u7684\u8ddf\u8e2a\u4efb\u52a1\u8fd8\u4f1a\u5e26\u6765\u53e6\u4e00\u4e2a\u6311\u6218\u3002\u4f60\u53ef\u80fd\u9700\u8981\u8fde\u7eed\u76d1\u63a7\u67d0\u9879\u670d\u52a1\u6570\u5c0f\u65f6\uff0c\u624d\u80fd\u6355\u6349\u5230\u4e00\u4e2a\u5076\u53d1\u6027\u95ee\u9898\u3002\u82e5\u53ea\u5199\u5165\u5355\u4e2a\u8f93\u51fa\u6587\u4ef6\uff0c\u5b83\u4f1a\u6301\u7eed\u589e\u5927\uff0c\u9010\u6e10\u53d8\u5f97\u96be\u4ee5\u7ba1\u7406\u3002\u4f60\u53ef\u4ee5\u5c06 -o<\/code> \u4e0e logrotate<\/code> \u6216 split<\/code> \u7b49\u5916\u90e8\u5de5\u5177\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u5904\u7406\u8fd9\u79cd\u6301\u7eed\u589e\u957f\u7684\u6587\u4ef6\u3002logrotate<\/code> \u5de5\u5177\u53ef\u4ee5\u6309\u7167\u6587\u4ef6\u5927\u5c0f\u6216\u65f6\u95f4\u95f4\u9694\u81ea\u52a8\u8f6e\u8f6c\u65e5\u5fd7\u6587\u4ef6\u3002\u4f60\u53ef\u4ee5\u5c06\u5176\u914d\u7f6e\u4e3a\u5728\u5f53\u524d\u8ddf\u8e2a\u6587\u4ef6\u8fbe\u5230\u67d0\u4e2a\u6761\u4ef6\u540e\u81ea\u52a8\u91cd\u547d\u540d\uff0c\u5e76\u5f00\u59cb\u5199\u5165\u65b0\u6587\u4ef6\u3002\u8fd9\u6837\u65e2\u80fd\u8ba9\u5355\u4e2a\u6587\u4ef6\u7ef4\u6301\u5728\u53ef\u7ba1\u7406\u8303\u56f4\u5185\uff0c\u4e5f\u80fd\u4fdd\u7559\u5386\u53f2\u6570\u636e\u3002<\/p>\n

-ff<\/code> \u9009\u9879\u5219\u8fdb\u4e00\u6b65\u589e\u5f3a\u4e86\u63a7\u5236\u80fd\u529b\u3002\u5c06\u5b83\u4e0e -o<\/code> \u7ec4\u5408\u4f7f\u7528\u65f6\uff0cstrace \u4f1a\u4e3a\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u5206\u522b\u521b\u5efa\u4e00\u4e2a\u8f93\u51fa\u6587\u4ef6\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6bcf\u4e2a worker \u8fdb\u7a0b\u90fd\u4f1a\u5199\u5165\u81ea\u5df1\u7684\u6587\u4ef6\u3002\u4f60\u53ef\u4ee5\u5206\u522b\u5bf9\u8fd9\u4e9b\u6587\u4ef6\u8fdb\u884c\u8f6e\u8f6c\u7ba1\u7406\u3002\u8fd9\u79cd\u65b9\u5f0f\u66f4\u5bb9\u6613\u5e2e\u52a9\u4f60\u9694\u79bb\u7279\u5b9a worker \u4e2d\u7684\u95ee\u9898\u3002\u6bd4\u5982\uff0c\u4f60\u53ef\u80fd\u4f1a\u53d1\u73b0\u67d0\u4e00\u4e2a worker \u6301\u7eed\u62a5\u9519\uff0c\u800c\u5176\u4ed6 worker \u90fd\u8fd0\u884c\u6b63\u5e38\u3002\u5206\u79bb\u7684\u6587\u4ef6\u4f1a\u8ba9\u8fd9\u79cd\u6a21\u5f0f\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n

\u4f60\u8fd8\u5e94\u7262\u8bb0\uff0c\u8ddf\u8e2a\u672c\u8eab\u4f1a\u7ed9\u7cfb\u7edf\u5e26\u6765\u989d\u5916\u5f00\u9500\u3002\u6bcf\u4e00\u4e2a\u88ab\u6355\u83b7\u7684\u7cfb\u7edf\u8c03\u7528\u90fd\u9700\u8981\u989d\u5916\u5904\u7406\u65f6\u95f4\u3002\u5728\u7e41\u5fd9\u670d\u52a1\u5668\u4e0a\uff0c\u8fd9\u79cd\u5f00\u9500\u53ef\u80fd\u4f1a\u660e\u663e\u62d6\u6162\u88ab\u8ddf\u8e2a\u8fdb\u7a0b\u3002\u56e0\u6b64\uff0c\u5e94\u8be5\u4f7f\u7528 -e trace=<\/code> \u8fc7\u6ee4\u5668\u6765\u51cf\u5c11\u6355\u83b7\u7684\u6570\u636e\u91cf\uff0c\u53ea\u5173\u6ce8\u4f60\u771f\u6b63\u9700\u8981\u7684\u7cfb\u7edf\u8c03\u7528\u3002\u8fd9\u6837\u505a\u65e2\u80fd\u964d\u4f4e\u6027\u80fd\u5f71\u54cd\uff0c\u4e5f\u80fd\u51cf\u5c11\u8f93\u51fa\u4f53\u79ef\uff0c\u8ba9\u4f60\u7684\u670d\u52a1\u5668\u5728\u91c7\u96c6\u8bca\u65ad\u4fe1\u606f\u7684\u540c\u65f6\u5c3d\u53ef\u80fd\u4fdd\u6301\u54cd\u5e94\u80fd\u529b\u3002<\/p>\n

\n
<\/div>\n<\/div>\n

\u73b0\u5728\u4f60\u5df2\u7ecf\u4e86\u89e3\u4e86\u5982\u4f55\u4f7f\u7528 strace \u5728 Linux \u670d\u52a1\u5668\u4e0a\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\uff1a\u4ece\u8ddf\u8e2a\u7b80\u5355\u547d\u4ee4\uff0c\u5230\u6df1\u5165\u8fdb\u884c\u6027\u80fd\u5206\u6790\u3002\u8fd9\u4e2a Linux \u5de5\u5177\u80fd\u591f\u6355\u83b7\u4fe1\u53f7\u4ee5\u53ca\u8fdb\u7a0b\u53d1\u51fa\u7684\u6bcf\u4e00\u4e2a\u5185\u6838\u8bf7\u6c42\u3002\u50cf -f<\/code>\u3001-e trace=<\/code> \u548c -c<\/code> \u8fd9\u6837\u7684\u9009\u9879\uff0c\u53ef\u4ee5\u8ba9\u4f60\u7684\u8ddf\u8e2a\u8f93\u51fa\u66f4\u52a0\u805a\u7126\uff0c\u4e5f\u80fd\u907f\u514d\u6d77\u91cf\u539f\u59cb\u8f93\u51fa\u6df9\u6ca1\u4f60\u771f\u6b63\u9700\u8981\u7684\u90a3\u4e2a\u5173\u952e\u7ec6\u8282\u3002<\/p>\n

\u5efa\u8bae\u5148\u5728\u6d4b\u8bd5\u673a\u5668\u4e0a\u7ec3\u4e60\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u8bf7\u8bb0\u4f4f strace \u4f1a\u62d6\u6162\u76ee\u6807\u8fdb\u7a0b\uff0c\u56e0\u6b64\u5e94\u5c3d\u91cf\u4f7f\u7528\u8fc7\u6ee4\u5668\u7f29\u5c0f\u8303\u56f4\uff0c\u5e76\u5728\u89c2\u5bdf\u5b8c\u6210\u540e\u53ca\u65f6\u5206\u79bb\u3002<\/p><\/blockquote>\n

\u53ea\u6709\u5728\u786e\u6709\u5fc5\u8981\u65f6\uff0c\u624d\u9644\u52a0\u5230\u4e00\u4e2a\u5df2\u7ecf\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\u4e0a\u3002\u53ea\u8981\u4f7f\u7528\u5f97\u5f53\uff0c\u8fd9\u4e2a Linux \u5de5\u5177\u5c31\u4f1a\u6210\u4e3a\u4f60\u6700\u53ef\u9760\u7684\u8bca\u65ad\u5229\u5668\u4e4b\u4e00\u3002<\/p>\n

\u5e38\u89c1\u95ee\u9898<\/strong><\/h2>\n

strace \u5728 Linux \u670d\u52a1\u5668\u4e0a\u7a76\u7adf\u80fd\u505a\u4ec0\u4e48\uff1f<\/h3>\n

Strace \u4f1a\u62e6\u622a\u7a0b\u5e8f\u5411 Linux \u5185\u6838\u53d1\u8d77\u7684\u6bcf\u4e00\u6b21\u7cfb\u7edf\u8c03\u7528\u3002\u5b83\u80fd\u5b9e\u65f6\u5c55\u793a\u6587\u4ef6\u6253\u5f00\u3001\u7f51\u7edc\u8bfb\u53d6\u548c\u5185\u5b58\u64cd\u4f5c\u7b49\u884c\u4e3a\u3002\u8fd9\u79cd\u53ef\u89c1\u6027\u80fd\u5e2e\u52a9\u4f60\u8bca\u65ad\u9519\u8bef\u3001\u627e\u51fa\u74f6\u9888\uff0c\u5e76\u5728\u65e0\u9700\u731c\u6d4b\u7684\u524d\u63d0\u4e0b\u7406\u89e3\u5e94\u7528\u7a0b\u5e8f\u7684\u8fd0\u884c\u65b9\u5f0f\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 strace \u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\uff0c\u7528\u4e8e\u8c03\u8bd5\u6216\u6027\u80fd\u5206\u6790\u3002<\/p>\n

\u5982\u4f55\u628a strace \u9644\u52a0\u5230\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u670d\u52a1\u4e0a\uff1f<\/h3>\n

\u4f60\u53ef\u4ee5\u4f7f\u7528\u5e26\u6709\u8fdb\u7a0b ID \u7684 -p<\/code> \u9009\u9879\u3002\u9996\u5148\uff0c\u4f7f\u7528 ps \u6216 pgrep \u627e\u5230\u76ee\u6807\u8fdb\u7a0b\u7684 PID\u3002\u7136\u540e\u8fd0\u884c strace -p PID<\/code>\u3002\u8be5\u5de5\u5177\u4f1a\u7acb\u523b\u9644\u52a0\u5230\u8be5\u8fdb\u7a0b\u5e76\u5f00\u59cb\u6355\u83b7\u5b83\u7684\u7cfb\u7edf\u8c03\u7528\u3002\u6309\u4e0b Ctrl+C \u5373\u53ef\u5206\u79bb\u3002\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u4efb\u4f55 Linux \u53d1\u884c\u7248\u3002<\/p>\n

strace \u4f1a\u5f71\u54cd\u670d\u52a1\u5668\u6027\u80fd\u5417\uff1f<\/h3>\n

\u4f1a\u3002\u8ddf\u8e2a\u4f1a\u5e26\u6765\u989d\u5916\u5f00\u9500\u3002\u6bcf\u4e00\u4e2a\u88ab\u6355\u83b7\u7684\u7cfb\u7edf\u8c03\u7528\u90fd\u9700\u8981\u989d\u5916\u5904\u7406\u65f6\u95f4\u3002\u5728\u7e41\u5fd9\u670d\u52a1\u5668\u4e0a\uff0c\u8fd9\u79cd\u5f00\u9500\u53ef\u80fd\u4f1a\u660e\u663e\u62d6\u6162\u88ab\u8ddf\u8e2a\u8fdb\u7a0b\u3002\u53ef\u4ee5\u4f7f\u7528 -e trace=<\/code> \u4e4b\u7c7b\u7684\u8fc7\u6ee4\u5668\u6765\u9650\u5236\u6355\u83b7\u8303\u56f4\uff0c\u4ece\u800c\u540c\u65f6\u964d\u4f4e\u6027\u80fd\u5f71\u54cd\u548c\u8f93\u51fa\u4f53\u79ef\u3002Linux \u7cfb\u7edf\u7ba1\u7406\u5458\u901a\u5e38\u90fd\u5e94\u5c3d\u91cf\u8fdb\u884c\u7cbe\u7ec6\u8fc7\u6ee4\u3002<\/p>\n

\u8ddf\u8e2a\u8fdb\u7a0b\u9700\u8981\u4ec0\u4e48\u6743\u9650\uff1f<\/h3>\n

\u4f60\u9700\u8981 root \u6743\u9650\uff0c\u6216\u8005\u4f7f\u7528\u4e0e\u76ee\u6807\u8fdb\u7a0b\u76f8\u540c\u7684\u7528\u6237\u8d26\u6237\u3002\u51fa\u4e8e\u5b89\u5168\u539f\u56e0\uff0cLinux \u4f1a\u9650\u5236\u5bf9 ptrace()<\/code> \u7684\u8bbf\u95ee\u3002\u5982\u679c\u6743\u9650\u4e0d\u8db3\uff0cstrace \u4f1a\u8fd4\u56de\u9519\u8bef\u3002\u8ddf\u8e2a\u5176\u4ed6\u7528\u6237\u62e5\u6709\u7684\u670d\u52a1\u65f6\uff0c\u8bf7\u4ee5 root \u8eab\u4efd\u8fd0\u884c strace\uff0c\u6216\u8005\u4f7f\u7528 sudo\u3002<\/p>\n

\u6211\u53ef\u4ee5\u540c\u65f6\u8ddf\u8e2a\u591a\u4e2a\u8fdb\u7a0b\u5417\uff1f<\/h3>\n

\u53ef\u4ee5\uff0c\u4f7f\u7528 -f<\/code> \u9009\u9879\u5373\u53ef\u8ddf\u8e2a\u5b50\u8fdb\u7a0b\u3002\u8fd9\u6837\u53ef\u4ee5\u540c\u65f6\u6355\u83b7\u4e3b\u8fdb\u7a0b\u53ca\u5176\u6240\u6709 worker \u7684\u7cfb\u7edf\u8c03\u7528\u3002\u8f93\u51fa\u4e2d\u7684\u6bcf\u4e00\u884c\u90fd\u4f1a\u663e\u793a\u53d1\u8d77\u8be5\u8c03\u7528\u7684\u8fdb\u7a0b PID\u3002\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u9002\u5408\u90a3\u4e9b\u4f1a\u751f\u6210\u591a\u4e2a worker \u7684\u670d\u52a1\u5668\u7a0b\u5e8f\u3002Linux \u670d\u52a1\u5668\u901a\u5e38\u4f1a\u540c\u65f6\u8fd0\u884c\u8bb8\u591a worker \u8fdb\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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