{"id":99737,"date":"2026-09-03T08:08:46","date_gmt":"2026-09-03T00:08:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/99737.html"},"modified":"2026-09-03T08:08:46","modified_gmt":"2026-09-03T00:08:46","slug":"%e6%80%a7%e8%83%bd%e6%b5%8b%e8%af%95%e9%97%ae%e9%a2%98%e6%8e%92%e6%9f%a5%e6%80%9d%e8%b7%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/99737.html","title":{"rendered":"\u6027\u80fd\u6d4b\u8bd5\u95ee\u9898\u6392\u67e5\u601d\u8def"},"content":{"rendered":"

1\u3001\u5148\u6392\u6389"\u5047\u95ee\u9898"（30% \u7684\u5751\u5728\u8fd9）<\/h3>\n

\u5f88\u591a\u6240\u8c13"\u6027\u80fd\u4e0a\u4e0d\u53bb"，\u5176\u5b9e\u662f\u538b\u6d4b\u672c\u8eab\u7684\u95ee\u9898\u3002\u8fd9\u4e00\u6b65\u4e0d\u5148\u505a，\u540e\u9762\u5168\u767d\u5e72\u3002<\/p>\n\n\n

\u68c0\u67e5\u70b9<\/p>\n

\u600e\u4e48\u770b<\/p>\n

\u5178\u578b\u75c7\u72b6<\/p>\n<\/tr>\n

\n\n\n\n\n\n
\n

\u538b\u6d4b\u673a\u81ea\u8eab\u74f6\u9888<\/p>\n<\/td>\n

\n

top\u3001CPU\u3001\u5185\u5b58\u3001\u7f51\u7edc<\/p>\n<\/td>\n

\n

\u538b\u6d4b\u673a CPU \u6253\u6ee1 \u2192 TPS \u662f\u538b\u6d4b\u673a\u7684\u4e0a\u9650，\u4e0d\u662f\u670d\u52a1\u7aef\u7684<\/p>\n<\/td>\n<\/tr>\n

\n

\u7aef\u53e3\u8017\u5c3d<\/p>\n<\/td>\n

\n

ss -s\u3001netstat<\/p>\n<\/td>\n

\n

TIME_WAIT \u66b4\u6da8，Cannot assign requested address<\/p>\n<\/td>\n<\/tr>\n

\n

\u7f51\u7edc\u5e26\u5bbd<\/p>\n<\/td>\n

\n

iftop\u3001sar -n DEV<\/p>\n<\/td>\n

\n

\u5e26\u5bbd\u8dd1\u6ee1，RT \u5168\u7ebf\u62c9\u957f<\/p>\n<\/td>\n<\/tr>\n

\n

\u811a\u672c\u95ee\u9898<\/p>\n<\/td>\n

\n

\u770b\u8bf7\u6c42\u662f\u5426\u771f\u53d1\u51fa\u53bb<\/p>\n<\/td>\n

\n

think time \u8bbe\u9519\u3001\u65ad\u8a00\u592a\u91cd\u3001CSV \u8bfb\u53d6\u6162<\/p>\n<\/td>\n<\/tr>\n

\n

\u8fde\u63a5\u6c60\/\u5ba2\u6237\u7aef\u9650\u5236<\/p>\n<\/td>\n

\n

JMeter \u7684 httpclient \u8fde\u63a5\u6570<\/p>\n<\/td>\n

\n

\u5e76\u53d1\u8bbe\u4e86 500，\u5b9e\u9645\u8fde\u63a5\u6570\u53ea\u6709 20<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5224\u636e\u9ec4\u91d1\u53e3\u8bc0：<\/p>\n

TPS \u4e0a\u4e0d\u53bb，\u4f46\u670d\u52a1\u7aef\u8d44\u6e90（CPU\/\u5185\u5b58\/IO）\u90fd\u5f88\u95f2 \u2192 \u5927\u6982\u7387\u662f\u538b\u6d4b\u7aef\u6216\u94fe\u8def\u963b\u585e，\u4e0d\u662f\u670d\u52a1\u7aef\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

\n

2\u3001\u5efa\u7acb"\u4e09\u8981\u7d20"\u5173\u8054\u89c6\u56fe<\/h3>\n

\u4efb\u4f55\u6027\u80fd\u95ee\u9898，\u90fd\u8981\u540c\u65f6\u770b\u8fd9\u4e09\u4e2a\u6307\u6807\u7684\u5173\u7cfb，\u7f3a\u4e00\u4e0d\u53ef：<\/p>\n

TPS（\u541e\u5410\u91cf） \u2194 RT（\u54cd\u5e94\u65f6\u95f4） \u2194 \u8d44\u6e90\u5229\u7528\u7387（CPU\/\u5185\u5b58\/IO\/\u7f51\u7edc）<\/p>\n

\u6838\u5fc3\u5b9a\u5f8b：<\/p>\n

    \n
  • CPU \u6da8，TPS \u6da8\u200b \u2192 \u6b63\u5e38，\u8fd8\u6ca1\u5230\u74f6\u9888<\/li>\n
  • CPU \u6da8，TPS \u4e0d\u6da8，RT \u6da8\u200b \u2192 \u5feb\u5230\u74f6\u9888\u4e86，\u5f00\u59cb\u6392\u961f<\/li>\n
  • CPU \u4e0d\u6da8，TPS \u4e0d\u6da8，RT \u6da8\u200b \u2192 \u6709\u963b\u585e（\u9501\u3001IO \u7b49\u5f85\u3001\u5916\u90e8\u4f9d\u8d56\u3001\u8fde\u63a5\u6c60\u4e0d\u591f）<\/li>\n
  • CPU \u6da8，TPS \u53cd\u964d\u200b \u2192 \u7ebf\u7a0b\u4e0a\u4e0b\u6587\u5207\u6362\u4e25\u91cd，\u6216 GC \u9891\u7e41<\/li>\n<\/ul>\n

    \u7b2c\u4e8c\u548c\u7b2c\u4e09\u79cd\u662f\u6700\u5e38\u89c1\u7684\u4e24\u7c7b\u95ee\u9898，\u540e\u9762\u5206\u5f00\u8bb2\u3002<\/p>\n

    \n

    3\u3001\u5206\u5c42\u5b9a\u4f4d\u6f0f\u6597（\u4ece\u5916\u5230\u5185）<\/h3>\n

    \u6309\u8fd9\u4e2a\u987a\u5e8f\u5f80\u4e0b\u94bb，\u6bcf\u5c42\u90fd\u6709\u660e\u786e\u7684"\u8bc1\u636e"\u51b3\u5b9a\u662f\u5426\u4e0b\u94bb：<\/p>\n

    \u2460 \u7f51\u7edc\/\u8d1f\u8f7d\u5747\u8861 \u2192 \u2461 \u5e94\u7528\u670d\u52a1\u5668 \u2192 \u2462 JVM \u2192 \u2463 \u4e2d\u95f4\u4ef6\/\u5916\u90e8\u4f9d\u8d56 \u2192 \u2464 \u6570\u636e\u5e93 \u2192 \u2465 \u4ee3\u7801<\/p>\n

    \u2460 \u7f51\u7edc & \u8d1f\u8f7d\u5747\u8861<\/h4>\n
      \n
    • \u770b：\u5e26\u5bbd\u3001\u4e22\u5305\u7387\u3001LB \u8fde\u63a5\u6570\u3001DNS \u89e3\u6790<\/li>\n
    • \u5de5\u5177：iftop\u3001sar -n DEV\u3001ping\u3001mtr<\/li>\n
    • \u5178\u578b\u95ee\u9898：\u5e26\u5bbd\u6253\u6ee1\u3001SLB \u8fde\u63a5\u6570\u9650\u5236\u3001\u8de8\u53ef\u7528\u533a\u8c03\u7528<\/li>\n<\/ul>\n

      \u2461 \u5e94\u7528\u670d\u52a1\u5668（\u7cfb\u7edf\u5c42）<\/h4>\n
        \n
      • \u770b：CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8 IO\u3001\u4e0a\u4e0b\u6587\u5207\u6362\u3001\u6253\u5f00\u6587\u4ef6\u6570<\/li>\n
      • \u5de5\u5177：top\u3001vmstat\u3001iostat\u3001pidstat\u3001dstat<\/li>\n
      • \u5173\u952e\u6307\u6807：\n
          \n
        • us（\u7528\u6237\u6001CPU）\u9ad8\u200b \u2192 \u4e1a\u52a1\u4ee3\u7801\u5728\u7b97，\u5f80\u4e0b\u94bb\u4ee3\u7801<\/li>\n
        • sy（\u5185\u6838\u6001CPU）\u9ad8\u200b \u2192 \u7cfb\u7edf\u8c03\u7528\u9891\u7e41（\u5927\u91cf IO\/\u7f51\u7edc\/\u9501\u7ade\u4e89）<\/li>\n
        • wa（IO\u7b49\u5f85）\u9ad8\u200b \u2192 \u78c1\u76d8\u6216\u5916\u90e8 IO \u6162<\/li>\n
        • cs（\u4e0a\u4e0b\u6587\u5207\u6362）\u66b4\u6da8\u200b \u2192 \u7ebf\u7a0b\u6570\u8fc7\u591a，\u5728\u75af\u72c2\u5207\u6362<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

          \u2462 JVM \u5c42<\/h4>\n
            \n
          • \u770b：GC \u9891\u7387\/\u8017\u65f6\u3001\u5806\u5185\u5b58\u3001\u7ebf\u7a0b\u72b6\u6001<\/li>\n
          • \u5de5\u5177：jstat -gcutil\u3001jmap\u3001jstack\u3001Arthas dashboard<\/li>\n
          • \u5178\u578b\u95ee\u9898：\n
              \n
            • Full GC \u9891\u7e41\u200b \u2192 \u5185\u5b58\u6cc4\u6f0f\u6216\u5806\u592a\u5c0f \u2192 jmap dump + MAT \u5206\u6790<\/li>\n
            • Young GC \u8017\u65f6\u9ad8\u200b \u2192 \u5bf9\u8c61\u521b\u5efa\u8fc7\u5feb，\u770b jstat \u5404\u533a\u56de\u6536\u60c5\u51b5<\/li>\n
            • \u5927\u91cf\u7ebf\u7a0b BLOCKED\u200b \u2192 \u9501\u7ade\u4e89 \u2192 jstack \u6216 Arthas thread -b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

              \u2463 \u4e2d\u95f4\u4ef6 \/ \u5916\u90e8\u4f9d\u8d56<\/h4>\n
                \n
              • \u770b：Redis\u3001MQ\u3001\u7b2c\u4e09\u65b9\u63a5\u53e3\u3001\u8fde\u63a5\u6c60<\/li>\n
              • \u5178\u578b\u95ee\u9898：\n
                  \n
                • \u8fde\u63a5\u6c60\u6253\u6ee1（Druid\/HikariCP \u7b49\u5f85\u6570）\u2192 \u6162 SQL \u62d6\u4f4f\u8fde\u63a5<\/li>\n
                • Redis \u5927 key\u3001\u70ed key\u3001\u8fde\u63a5\u6c60\u4e0d\u591f<\/li>\n
                • \u7b2c\u4e09\u65b9\u63a5\u53e3 RT \u957f \u2192 \u4e32\u884c\u8c03\u7528\u653e\u5927 RT<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                  \u2464 \u6570\u636e\u5e93（\u6700\u5e38\u89c1\u7684\u7ec8\u6781\u74f6\u9888）<\/h4>\n
                    \n
                  • \u770b：\u6162 SQL\u3001\u9501\u7b49\u5f85\u3001\u8fde\u63a5\u6570\u3001Buffer Pool \u547d\u4e2d\u7387<\/li>\n
                  • \u5de5\u5177：\u6162\u67e5\u8be2\u65e5\u5fd7\u3001show processlist\u3001explain\u3001Arthas trace \u5b9a\u4f4d\u5230 SQL<\/li>\n
                  • \u5178\u578b\u95ee\u9898：\n
                      \n
                    • \u6ca1\u8d70\u7d22\u5f15\u3001\u7d22\u5f15\u5931\u6548<\/li>\n
                    • \u5927\u8868 JOIN\u3001\u6df1\u5206\u9875<\/li>\n
                    • \u884c\u9501\/\u8868\u9501\u7b49\u5f85<\/li>\n
                    • \u8fde\u63a5\u6570\u6253\u6ee1<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                      \u2465 \u4ee3\u7801\u5c42<\/h4>\n
                        \n
                      • \u5230\u8fd9\u4e00\u5c42\u5c31\u662f\u6700\u540e\u4e00\u6b65\u4e86，\u9760 Arthas \/ APM \/ profile \u706b\u7130\u56fe<\/li>\n
                      • \u5178\u578b\u95ee\u9898：\u5faa\u73af\u91cc\u67e5\u6570\u636e\u5e93\u3001\u540c\u6b65\u9501\u8303\u56f4\u8fc7\u5927\u3001\u5e8f\u5217\u5316\u5f00\u9500\u3001\u65e5\u5fd7\u6253\u592a\u591a<\/li>\n<\/ul>\n
                        \n

                        4\u3001\u4e24\u5927\u7ecf\u5178\u573a\u666f\u7684\u6392\u67e5\u8def\u5f84<\/h3>\n

                        \u573a\u666f A：CPU \u9ad8\u3001TPS \u4e0a\u4e0d\u53bb<\/h4>\n

                        top \u2192 \u627e\u5230 CPU \u9ad8\u7684\u8fdb\u7a0b
                        \ntop -Hp <pid> \u2192 \u627e\u5230 CPU \u9ad8\u7684\u7ebf\u7a0b
                        \nprintf %x <tid> \u2192 \u8f6c 16 \u8fdb\u5236
                        \njstack <pid> | grep -A20 <hex> \u2192 \u770b\u8fd9\u4e2a\u7ebf\u7a0b\u5728\u5e72\u561b<\/p>\n

                        \u6216\u8005 Arthas \u4e00\u6b65\u5230\u4f4d：<\/p>\n

                        thread -n 3<\/p>\n

                        \u5f80\u4e0b\u5224\u65ad：<\/p>\n

                          \n
                        • \u6808\u5728\u4e1a\u52a1\u65b9\u6cd5\u200b \u2192 \u7b97\u6cd5\/\u5faa\u73af\u95ee\u9898，\u7528 profiler \u706b\u7130\u56fe\u627e\u70ed\u70b9\u65b9\u6cd5<\/li>\n
                        • \u6808\u5728 GC \u7ebf\u7a0b\u200b \u2192 \u5185\u5b58\u95ee\u9898，\u8f6c JVM \u6392\u67e5<\/li>\n
                        • \u6808\u5728\u5e8f\u5217\u5316\/JSON\u200b \u2192 \u6570\u636e\u91cf\u592a\u5927\u6216\u5e8f\u5217\u5316\u6846\u67b6\u6162<\/li>\n<\/ul>\n

                          \u573a\u666f B：CPU \u4e0d\u9ad8\u3001\u4f46 RT \u5f88\u957f\u3001TPS \u4e0a\u4e0d\u53bb \u2190 \u9762\u8bd5\u6700\u7231\u8003<\/h4>\n

                          \u8fd9\u662f\u963b\u585e\u578b\u95ee\u9898，\u6392\u67e5\u601d\u8def\u5b8c\u5168\u4e0d\u540c：<\/p>\n

                          1. jstack \/ Arthas thread \u770b\u7ebf\u7a0b\u72b6\u6001
                          \n \u2192 \u5927\u91cf WAITING\/BLOCKED
                          \n2. \u770b\u5728\u7b49\u4ec0\u4e48：
                          \n – \u7b49\u6570\u636e\u5e93\u8fde\u63a5\u6c60 \u2192 \u8fde\u63a5\u6570\u4e0d\u591f \u6216 \u6162 SQL \u5360\u7740\u8fde\u63a5
                          \n – \u7b49 Redis\/HTTP \u8fde\u63a5 \u2192 \u5916\u90e8\u4f9d\u8d56\u6162
                          \n – \u7b49 synchronized \u9501 \u2192 \u9501\u7ade\u4e89\u6fc0\u70c8（thread -b \u76f4\u63a5\u627e）
                          \n – \u7b49\u7ebf\u7a0b\u6c60\u961f\u5217 \u2192 \u7ebf\u7a0b\u6c60\u6838\u5fc3\u6570\/\u961f\u5217\u914d\u7f6e\u4e0d\u5408\u7406
                          \n3. Arthas trace \u770b\u65b9\u6cd5\u5185\u90e8\u8017\u65f6\u5206\u5e03
                          \n \u2192 \u5b9a\u4f4d\u5230\u5e95\u5361\u5728\u54ea\u4e00\u8df3<\/p>\n

                          \u5173\u952e\u6d1e\u5bdf：<\/p>\n

                          CPU \u4f4e + RT \u9ad8 = \u7cfb\u7edf\u5728"\u7b49"，\u4e0d\u662f\u5728"\u7b97"\u3002\u8981\u627e"\u7b49\u4ec0\u4e48"，\u4e0d\u662f\u627e"\u7b97\u4ec0\u4e48"\u3002<\/p>\n

                          \n

                          \u4e94\u3001\u4e00\u4e2a\u5b9e\u6218\u6392\u67e5\u6a21\u677f（\u53ef\u76f4\u63a5\u5957）<\/h3>\n

                          # === \u7b2c 0 \u6b65：\u786e\u8ba4\u538b\u6d4b\u7aef\u6ca1\u95ee\u9898 ===
                          \n# \u538b\u6d4b\u673a CPU\/\u7f51\u7edc\u662f\u5426\u6b63\u5e38<\/p>\n

                          # === \u7b2c 1 \u6b65：\u7cfb\u7edf\u5c42 ===
                          \ntop # \u770b\u6574\u4f53\u8d1f\u8f7d\u3001CPU \u5206\u5e03
                          \nvmstat 1 # \u770b cs（\u4e0a\u4e0b\u6587\u5207\u6362）\u3001wa（IO\u7b49\u5f85）
                          \npidstat -u -p <pid> 1 # \u8fdb\u7a0b\u7ea7 CPU<\/p>\n

                          # === \u7b2c 2 \u6b65：JVM \u5c42 ===
                          \njstat -gcutil <pid> 1000 # \u770b GC \u9891\u7387\u548c\u8017\u65f6
                          \njstack <pid> > \/tmp\/stack.txt # \u6293\u7ebf\u7a0b\u6808（\u591a\u6293\u51e0\u6b21）<\/p>\n

                          # === \u7b2c 3 \u6b65： Arthas \u7cbe\u51c6\u5b9a\u4f4d ===
                          \ndashboard # \u6574\u4f53\u9762\u677f
                          \nthread -n 3 # CPU Top3
                          \nthread -b # \u627e\u6b7b\u9501\/\u963b\u585e\u6e90
                          \ntrace <class> <method> '#cost>200' # \u53ea\u770b\u8017\u65f6>200ms \u7684\u8c03\u7528
                          \nwatch <class> <method> '{params, returnObj}' -x 2<\/p>\n

                          # === \u7b2c 4 \u6b65：\u6570\u636e\u5e93 ===
                          \n# \u5f00\u6162\u67e5\u8be2\u65e5\u5fd7 \/ show processlist \/ explain<\/p>\n

                          \u7ebf\u7a0b\u6808\u6293\u4e0b\u6765\u540e，\u91cd\u70b9\u770b\u5927\u591a\u6570\u7ebf\u7a0b\u505c\u5728\u54ea\u4e00\u4e2a\u6808\u5e27\u2014\u2014\u90a3\u4e2a\u5c31\u662f\u74f6\u9888\u3002<\/p>\n

                          \n

                          \u516d\u3001\u6392\u67e5\u5fc3\u6cd5（\u6bd4\u5de5\u5177\u66f4\u91cd\u8981）<\/h3>\n
                        • \u5148\u6d4b\u91cf，\u518d\u4f18\u5316：\u6ca1\u6709\u6570\u636e\u652f\u6491\u7684\u4f18\u5316\u90fd\u662f\u7384\u5b66<\/li>\n
                        • \u4e00\u6b21\u53ea\u6539\u4e00\u4e2a\u53d8\u91cf：\u6539\u5b8c\u91cd\u6d4b，\u624d\u80fd\u786e\u5b9a\u6548\u679c<\/li>\n
                        • \u4ece\u5927\u5230\u5c0f，\u4ece\u7c97\u5230\u7ec6：\u5148\u786e\u5b9a\u662f\u54ea\u4e00\u5c42（\u7f51\u7edc\/\u5e94\u7528\/DB），\u518d\u6df1\u5165\u5177\u4f53\u65b9\u6cd5<\/li>\n
                        • \u770b\u8d8b\u52bf，\u4e0d\u770b\u5feb\u7167：\u6027\u80fd\u95ee\u9898\u8981\u770b\u538b\u6d4b\u8fc7\u7a0b\u4e2d\u7684\u66f2\u7ebf\u53d8\u5316（\u5185\u5b58\u662f\u5426\u6301\u7eed\u589e\u957f？TPS \u662f\u5426\u968f\u65f6\u95f4\u4e0b\u964d？）<\/li>\n
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                          \n

                          \u4e03\u3001\u8bb0\u5fc6\u951a\u70b9<\/h3>\n

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                          CPU \u9ad8\u5f80\u4e0b\u627e"\u7b97\u4ec0\u4e48"，CPU \u4f4e\u5f80\u4e0b\u627e"\u7b49\u4ec0\u4e48"\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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