{"id":4721,"date":"2021-12-07T22:00:39","date_gmt":"2021-12-08T06:00:39","guid":{"rendered":"https:\/\/www.xh86.me\/?p=4721"},"modified":"2021-12-07T22:11:44","modified_gmt":"2021-12-08T06:11:44","slug":"%e8%ae%b0%e4%b8%80%e6%ac%a1%e6%8f%90%e5%8d%8718%e5%80%8d%e7%9a%84%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/www.xh86.me\/?p=4721","title":{"rendered":"\u8bb0\u4e00\u6b21\u63d0\u534718\u500d\u7684\u6027\u80fd\u4f18\u5316"},"content":{"rendered":"
\n
\n
\n

\u80cc\u666f<\/h3>\n

\u6700\u8fd1\u8d1f\u8d23\u7684\u4e00\u4e2a\u81ea\u7814\u7684 Dubbo \u6ce8\u518c\u4e2d\u5fc3\u7ecf\u5e38\u6536\u5230 CPU \u4f7f\u7528\u7387\u7684\u544a\u8b66\uff0c\u4e8e\u662f\u8fdb\u884c\u4e86\u4e00\u6ce2\u4f18\u5316\uff0c\u6548\u679c\u8fd8\u4e0d\u9519\uff0c\u4e8e\u662f\u6253\u7b97\u5206\u4eab\u4e0b\u601d\u8003\u3001\u4f18\u5316\u8fc7\u7a0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u4e00\u4e9b\u5e2e\u52a9\u3002<\/p>\n

\u81ea\u7814 Dubbo \u6ce8\u518c\u4e2d\u5fc3\u662f\u4e2a\u4ec0\u4e48\u4e1c\u897f\uff0c\u6211\u753b\u4e2a\u7b80\u56fe\u5927\u5bb6\u7a0d\u5fae\u611f\u53d7\u4e00\u4e0b\u5c31\u597d\uff0c\u770b\u4e0d\u61c2\u4e5f\u6ca1\u5173\u7cfb\uff0c\u4e0d\u5f71\u54cd\u540e\u7eed\u7684\u7406\u89e3\u3002<\/p>\n

<\/div><\/figure>\n
    \n
  • \n
    Consumer \u548c Provider \u7684\u670d\u52a1\u53d1\u73b0\u8bf7\u6c42\uff08\u6ce8\u518c\u3001\u6ce8\u9500\u3001\u8ba2\u9605\uff09\u90fd\u53d1\u7ed9 Agent\uff0c\u7531\u5b83\u5168\u6743\u4ee3\u7406<\/section>\n<\/li>\n
  • \n
    Registry \u548c Agent \u4fdd\u6301 Grpc \u957f\u94fe\u63a5\uff0c\u957f\u94fe\u63a5\u7684\u76ee\u7684\u4e3b\u8981\u662f Provider \u65b9\u6709\u53d8\u66f4\u65f6\uff0c\u80fd\u53ca\u65f6\u63a8\u9001\u7ed9\u76f8\u5e94\u7684 Consumer\u3002\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u6b63\u786e\u6027\uff0c\u505a\u4e86\u63a8\u62c9\u7ed3\u5408\u7684\u673a\u5236\uff0cAgent \u4f1a\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u53bb Registry \u62c9\u53d6\u8ba2\u9605\u7684\u670d\u52a1\u5217\u8868<\/section>\n<\/li>\n
  • \n
    Agent \u548c\u4e1a\u52a1\u670d\u52a1\u90e8\u7f72\u5728\u540c\u4e00\u53f0\u673a\u5668\u4e0a\uff0c\u7c7b\u4f3c Service Mesh \u7684\u601d\u8def\uff0c\u5c3d\u91cf\u51cf\u5c11\u5bf9\u4e1a\u52a1\u7684\u5165\u4fb5\uff0c\u8fd9\u6837\u5c31\u80fd\u5feb\u901f\u7684\u8fed\u4ee3\u4e86<\/section>\n<\/li>\n<\/ul>\n

    \u56de\u5230\u4eca\u5929\u7684\u91cd\u70b9\uff0c\u8fd9\u4e2a\u6ce8\u518c\u4e2d\u5fc3\u6700\u8fd1 CPU \u4f7f\u7528\u7387\u957f\u671f\u5904\u4e8e\u4e2d\u9ad8\u6c34\u4f4d\uff0c\u5076\u5c14\u6709\u5e94\u7528\u53d1\u5e03\uff0c\u63a8\u9001\u91cf\u5927\u65f6\uff0cCPU \u751a\u81f3\u4f1a\u88ab\u6253\u6ee1\u3002<\/p>\n

    \u4ee5\u524d\u6ca1\u611f\u89c9\u5230\uff0c\u662f\u56e0\u4e3a\u63a5\u5165\u7684\u5e94\u7528\u4e0d\u591a\uff0c\u6700\u8fd1\u51e0\u4e2a\u6708\u5e94\u7528\u8d8a\u63a5\u8d8a\u591a\uff0c\u6162\u6162\u5c31\u8fbe\u5230\u4e86\u544a\u8b66\u9608\u503c\u3002<\/p>\n

    \u5bfb\u627e\u4f18\u5316\u70b9<\/h3>\n

    \u7531\u4e8e\u8fd9\u9879\u76ee\u662f Go \u5199\u7684\uff08\u4e0d\u61c2 Go \u7684\u670b\u53cb\u4e5f\u6ca1\u5173\u7cfb\uff0c\u672c\u6587\u91cd\u70b9\u5728\u7b97\u6cd5\u7684\u4f18\u5316\uff0c\u4e0d\u5728\u5de5\u5177\u7684\u4f7f\u7528\u4e0a\uff09\uff0c \u627e\u5230\u54ea\u91cc\u8017 CPU \u8fd8\u662f\u633a\u7b80\u5355\u7684\uff1a\u6253\u5f00 pprof \u5373\u53ef\uff0c\u53bb\u7ebf\u4e0a\u91c7\u96c6\u4e00\u6bb5\u65f6\u95f4\u5373\u53ef\u3002<\/p>\n

    \u5177\u4f53\u600e\u4e48\u64cd\u4f5c\u53ef\u4ee5\u53c2\u8003\u6211\u4e4b\u524d\u7684\uff0c\u4eca\u5929\u6587\u7ae0\u4e2d\u7528\u5230\u7684\u77e5\u8bc6\u548c\u5de5\u5177\uff0c\u8fd9\u7bc7\u6587\u7ae0\u90fd\u80fd\u627e\u5230\u3002<\/p>\n

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

    CPU profile \u622a\u4e86\u90e8\u5206\u56fe\uff0c\u5176\u4ed6\u7684\u4e0d\u592a\u91cd\u8981\uff0c\u53ef\u4ee5\u770b\u5230\u6d88\u8017 CPU \u591a\u7684\u662f AssembleCategoryProviders<\/code>\u65b9\u6cd5\uff0c\u4e0e\u5176\u76f4\u63a5\u5173\u8054\u7684\u662f<\/p>\n

      \n
    • \n
      2\u4e2a redis \u76f8\u5173\u7684\u65b9\u6cd5<\/section>\n<\/li>\n
    • \n
      1\u4e2a\u53ebassembleUrlWeight<\/code>\u7684\u65b9\u6cd5<\/section>\n<\/li>\n<\/ul>\n

      \u7a0d\u5fae\u89e3\u91ca\u4e0b\uff0cAssembleCategoryProviders \u65b9\u6cd5\u662f\u6784\u9020\u8fd4\u56de Dubbo provider \u7684 url\uff0c\u7531\u4e8e\u4f1a\u5728\u8fd4\u56de url \u65f6\u5bf9\u5176\u505a\u4e00\u4e9b\u5904\u7406\uff08\u6bd4\u5982\u8c03\u6574\u6743\u91cd\u7b49\uff09\uff0c\u4f1a\u6d89\u53ca\u5230\u5bf9\u8fd9\u4e2a Dubbo url \u7684\u89e3\u6790\u3002\u53c8\u7531\u4e8e\u63a8\u62c9\u7ed3\u5408\u7684\u6a21\u5f0f\uff0c\u7ebf\u4e0a\u670d\u52a1\u4f7f\u7528\u65b9\u8d8a\u591a\uff0c\u8fd9\u4e2a\u5904\u7406\u7684 QPS \u5c31\u8d8a\u5927\uff0c\u6240\u4ee5\u5b83\u5360\u7528\u4e86\u5927\u90e8\u5206 CPU \u4e00\u70b9\u4e5f\u4e0d\u5947\u602a\u3002<\/p>\n

      \u8fd9\u4e24\u4e2a redis \u64cd\u4f5c\u53ef\u80fd\u662f\u5e8f\u5217\u5316\u5360\u7528\u4e86 CPU\uff0c\u66f4\u5927\u5934\u5728 assembleUrlWeight\uff0c\u6709\u70b9\u7422\u78e8\u4e0d\u900f\u3002<\/p>\n

      \u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u5206\u6790\u4e0b assembleUrlWeight \u5982\u4f55\u4f18\u5316\uff0c\u56e0\u4e3a\u4ed6\u5360\u7528 CPU \u6700\u591a\uff0c\u4f18\u5316\u6548\u679c\u80af\u5b9a\u6700\u597d\u3002<\/p>\n

      \u4e0b\u9762\u662f assembleUrlWeight \u7684\u4f2a\u4ee3\u7801\uff1a<\/p>\n

      func<\/span>\u00a0AssembleUrlWeight<\/span>(rawurl\u00a0string<\/span>,\u00a0lidcWeight\u00a0int<\/span>)<\/span>\u00a0string<\/span><\/span>\u00a0{\r\n\u00a0u,\u00a0err\u00a0:=\u00a0url.Parse(rawurl)\r\n\u00a0if<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{\r\n\u00a0\u00a0return<\/span>\u00a0rawurl\r\n\u00a0}<\/code><\/pre>\n
      values,\u00a0err\u00a0:=\u00a0url.ParseQuery(u.RawQuery)
      \nif<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{
      \nreturn<\/span>\u00a0rawurl
      \n}<\/p>\n
      <\/code><\/pre>\n
      if<\/span>\u00a0values.Get(“lidc_weight”<\/span>)\u00a0!=\u00a0“”<\/span>\u00a0{
      \nreturn<\/span>\u00a0rawurl
      \n}<\/p>\n
      <\/code><\/pre>\n
      endpointWeight\u00a0:=\u00a0100<\/span>
      \nif<\/span>\u00a0values.Get(“weight”<\/span>)\u00a0!=\u00a0“”<\/span>\u00a0{
      \nendpointWeight,\u00a0err\u00a0=\u00a0strconv.Atoi(values.Get(“weight”<\/span>))
      \nif<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{
      \nendpointWeight\u00a0=\u00a0100<\/span>
      \n}
      \n}<\/p>\n
      <\/code><\/pre>\n
      values.Set(“weight”<\/span>,\u00a0strconv.Itoa(lidcWeight*endpointWeight))<\/p>\n
      <\/code><\/pre>\n
      u.RawQuery\u00a0=\u00a0values.Encode()
      \nreturn<\/span>\u00a0u.String()
      \n}<\/p>\n
      <\/code><\/pre>\n
      \u4f20\u53c2 rawurl \u662f Dubbo provider \u7684url\uff0clidcWeight \u662f\u673a\u623f\u6743\u91cd\u3002\u6839\u636e\u914d\u7f6e\u7684\u673a\u623f\u6743\u91cd\uff0c\u5c06 url \u4e2d\u7684 weight \u8fdb\u884c\u91cd\u65b0\u8ba1\u7b97\uff0c\u5b9e\u73b0\u591a\u673a\u623f\u6d41\u91cf\u6309\u6743\u91cd\u7684\u5206\u914d\u3002<\/p>\n
      \u8fd9\u4e2a\u8fc7\u7a0b\u6d89\u53ca\u5230 url \u53c2\u6570\u7684\u89e3\u6790\uff0c\u518d\u8fdb\u884c weight \u7684\u8ba1\u7b97\uff0c\u6700\u540e\u518d\u8fd8\u539f\u4e3a\u4e00\u4e2a url<\/p>\n
      Dubbo \u7684 url \u7ed3\u6784\u548c\u666e\u901a url \u7ed3\u6784\u4e00\u81f4\uff0c\u5176\u7279\u70b9\u662f\u53c2\u6570\u53ef\u80fd\u6bd4\u8f83\u591a\uff0c\u6ca1\u6709 #<\/code>\u540e\u9762\u7684\u7247\u6bb5\u90e8\u5206\u3002<\/p>\n
      <\/div><\/figure>\n
      CPU \u4e3b\u8981\u5c31\u6d88\u8017\u5728\u8fd9\u4e24\u6b21\u89e3\u6790\u548c\u6700\u540e\u7684\u8fd8\u539f\u4e2d\uff0c\u6211\u4eec\u770b\u8fd9\u4e24\u6b21\u89e3\u6790\u7684\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u62ff\u5230 url \u4e2d\u7684 lidc_weight<\/code> \u548c weight<\/code> \u53c2\u6570\u3002<\/p>\n
      url.Parse \u548c url.ParseQuery \u90fd\u662f Go \u5b98\u65b9\u63d0\u4f9b\u7684\u5e93\uff0c\u5404\u4e2a\u8bed\u8a00\u4e5f\u90fd\u6709\u5b9e\u73b0\uff0c\u5176\u6838\u5fc3\u662f\u89e3\u6790 url \u4e3a\u4e00\u4e2a\u5bf9\u8c61\uff0c\u65b9\u4fbf\u5730\u83b7\u53d6 url \u7684\u5404\u4e2a\u90e8\u5206\u3002<\/p>\n
      \u5982\u679c\u4e86\u89e3\u4fe1\u606f\u71b5\u8fd9\u4e2a\u6982\u5ff5\uff0c\u5176\u5b9e\u4f60\u5c31\u5927\u6982\u77e5\u9053\u8fd9\u91cc\u9762\u4e00\u5b9a\u662f\u53ef\u4ee5\u4f18\u5316\u7684\u3002Shannon\uff08\u9999\u519c\uff09<\/code> \u501f\u9274\u4e86\u70ed\u529b\u5b66\u7684\u6982\u5ff5\uff0c\u628a\u4fe1\u606f\u4e2d\u6392\u9664\u4e86\u5197\u4f59\u540e\u7684\u5e73\u5747\u4fe1\u606f\u91cf\u79f0\u4e3a\u4fe1\u606f\u71b5<\/code>\u3002<\/p>\n
      <\/div><\/figure>\n
      url.Parse \u548c url.ParseQuery \u5728\u8fd9\u4e2a\u573a\u666f\u4e0b\u89e3\u6790\u80af\u5b9a\u5b58\u5728\u5197\u4f59\uff0c\u5197\u4f59\u610f\u5473\u7740 CPU \u5728\u505a\u591a\u4f59\u7684\u4e8b\u60c5\u3002<\/p>\n
      \u56e0\u4e3a\u4e00\u4e2a Dubbo url \u53c2\u6570\u901a\u5e38\u662f\u5f88\u591a\u7684\uff0c\u6211\u4eec\u53ea\u9700\u8981\u62ff\u8fd9\u4e24\u4e2a\u53c2\u6570\uff0c\u800c url.Parse \u89e3\u6790\u4e86\u6240\u6709\u7684\u53c2\u6570\u3002<\/p>\n
      \u4e3e\u4e2a\u4f8b\u5b50\uff0c\u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4\uff0c\u6c42\u5176\u4e2d\u7684\u6700\u5927\u503c\uff0c\u5982\u679c\u5148\u5bf9\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u518d\u53d6\u6700\u5927\u503c\u663e\u7136\u662f\u5b58\u5728\u5197\u4f59\u64cd\u4f5c\u7684\u3002<\/p>\n
      \u6392\u5e8f\u540e\u7684\u6570\u7ec4\u4e0d\u4ec5\u80fd\u53d6\u6700\u5927\u503c\uff0c\u8fd8\u80fd\u53d6\u7b2c\u4e8c\u5927\u503c\u3001\u7b2c\u4e09\u5927\u503c…\u6700\u5c0f\u503c\uff0c\u4fe1\u606f\u5b58\u5728\u5197\u4f59\u4e86\uff0c\u6240\u4ee5\u5148\u6392\u5e8f\u80af\u5b9a\u4e0d\u662f\u6c42\u6700\u5927\u503c\u7684\u6700\u4f18\u89e3\u3002<\/p>\n
      \u4f18\u5316<\/h3>\n
      \u4f18\u5316\u83b7\u53d6 url \u53c2\u6570\u6027\u80fd<\/h4>\n
      \u7b2c\u4e00\u60f3\u6cd5\u662f\uff0c\u4e0d\u8981\u89e3\u6790\u5168\u90e8 url\uff0c\u53ea\u62ff\u76f8\u5e94\u7684\u53c2\u6570\uff0c\u8fd9\u5c31\u5f88\u50cf\u6211\u4eec\u5199\u7684\u7b97\u6cd5\u9898\uff0c\u6bd4\u5982\u83b7\u53d6 weight \u53c2\u6570\uff0c\u5b83\u53ea\u53ef\u80fd\u662f\u8fd9\u4e24\u79cd\u60c5\u51b5\uff08\u4e0d\u5b58\u5728 #\uff0c\u6240\u4ee5\u7b80\u5355\u5f88\u591a\uff09\uff1a<\/p>\n
        \n
      • \n
        dubbo:\/\/127.0.0.1:20880\/org.newboo.basic.MyDemoService?weight=100&…<\/section>\n<\/li>\n
      • \n
        dubbo:\/\/127.0.0.1:20880\/org.newboo.basic.MyDemoService?xx=yy&weight=100&…<\/section>\n<\/li>\n<\/ul>\n
        \u8981\u4e48\u662f &weight=<\/code>\uff0c\u8981\u4e48\u662f ?weight=<\/code>\uff0c\u7ed3\u675f\u8981\u4e48\u662f&<\/code>\uff0c\u8981\u4e48\u76f4\u63a5\u5230\u5b57\u7b26\u4e32\u5c3e\uff0c\u4ee3\u7801\u5c31\u5f88\u597d\u5199\u4e86\uff0c\u5148\u624b\u5199\u4e2a\u89e3\u6790\u53c2\u6570\u7684\u7b97\u6cd5\uff1a<\/p>\n
        func<\/span>\u00a0GetUrlQueryParam<\/span>(u\u00a0string<\/span>,\u00a0key\u00a0string<\/span>)<\/span>\u00a0(string<\/span>,\u00a0error)<\/span><\/span>\u00a0{\r\n\u00a0sb\u00a0:=\u00a0strings.Builder{}\r\n\u00a0sb.WriteString(key)\r\n\u00a0sb.WriteString(\"=\"<\/span>)\r\n\u00a0index\u00a0:=\u00a0strings.Index(u,\u00a0sb.String())\r\n\u00a0if<\/span>\u00a0(index\u00a0==\u00a0-1<\/span>)\u00a0||\u00a0(index+len<\/span>(key)+1<\/span>\u00a0>\u00a0len<\/span>(u))\u00a0{\r\n\u00a0\u00a0return<\/span>\u00a0\"\"<\/span>,\u00a0UrlParamNotExist\r\n\u00a0}<\/code><\/pre>\n
        var<\/span>\u00a0value\u00a0=\u00a0strings.Builder{}
        \nfor<\/span>\u00a0i\u00a0:=\u00a0index\u00a0+\u00a0len<\/span>(key)\u00a0+\u00a01<\/span>;\u00a0i\u00a0<\u00a0len<\/span>(u);\u00a0i++\u00a0{
        \nif<\/span>\u00a0i+1<\/span>\u00a0>\u00a0len<\/span>(u)\u00a0{
        \nbreak<\/span>
        \n}
        \nif<\/span>\u00a0u[i:i+1<\/span>]\u00a0==\u00a0“&”<\/span>\u00a0{
        \nbreak<\/span>
        \n}
        \nvalue.WriteString(u[i\u00a0:\u00a0i+1<\/span>])
        \n}
        \nreturn<\/span>\u00a0value.String(),\u00a0nil<\/span>
        \n}<\/p>\n
        <\/code><\/pre>\n
        \u539f\u5148\u83b7\u53d6\u53c2\u6570\u7684\u65b9\u6cd5\u53ef\u4ee5\u6458\u51fa\u6765\uff1a<\/p>\n
        func<\/span>\u00a0getParamByUrlParse<\/span>(ur\u00a0string<\/span>,\u00a0key\u00a0string<\/span>)<\/span>\u00a0string<\/span><\/span>\u00a0{\r\n\u00a0u,\u00a0err\u00a0:=\u00a0url.Parse(ur)\r\n\u00a0if<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{\r\n\u00a0\u00a0return<\/span>\u00a0\"\"<\/span>\r\n\u00a0}<\/code><\/pre>\n
        values,\u00a0err\u00a0:=\u00a0url.ParseQuery(u.RawQuery)
        \nif<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{
        \nreturn<\/span>\u00a0“”<\/span>
        \n}<\/p>\n
        <\/code><\/pre>\n
        return<\/span>\u00a0values.Get(key)
        \n}<\/p>\n
        <\/code><\/pre>\n
        \u5148\u5bf9\u8fd9\u4e24\u4e2a\u51fd\u6570\u8fdb\u884c benchmark\uff1a<\/p>\n
        func<\/span>\u00a0BenchmarkGetQueryParam<\/span>(b\u00a0*testing.B)<\/span><\/span>\u00a0{\r\n\u00a0for<\/span>\u00a0i\u00a0:=\u00a00<\/span>;\u00a0i\u00a0<\u00a0b.N;\u00a0i++\u00a0{\r\n\u00a0\u00a0getParamByUrlParse(u,\u00a0\"anyhost\"<\/span>)\r\n\u00a0\u00a0getParamByUrlParse(u,\u00a0\"version\"<\/span>)\r\n\u00a0\u00a0getParamByUrlParse(u,\u00a0\"not_exist\"<\/span>)\r\n\u00a0}\r\n}<\/code><\/pre>\n
        func<\/span>\u00a0BenchmarkGetQueryParamNew<\/span>(b\u00a0*testing.B)<\/span><\/span>\u00a0{
        \nfor<\/span>\u00a0i\u00a0:=\u00a00<\/span>;\u00a0i\u00a0<\u00a0b.N;\u00a0i++\u00a0{
        \nGetUrlQueryParam(u,\u00a0“anyhost”<\/span>)
        \nGetUrlQueryParam(u,\u00a0“version”<\/span>)
        \nGetUrlQueryParam(u,\u00a0“not_exist”<\/span>)
        \n}
        \n}<\/p>\n
        <\/code><\/pre>\n
        Benchmark \u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
        BenchmarkGetQueryParam-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0103412\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09708\u00a0ns\/op\r\nBenchmarkGetQueryParam-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0111794\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09685\u00a0ns\/op\r\nBenchmarkGetQueryParam-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0115699\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09818\u00a0ns\/op\r\nBenchmarkGetQueryParamNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02961254\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0409\u00a0ns\/op\r\nBenchmarkGetQueryParamNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02944274\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0406\u00a0ns\/op\r\nBenchmarkGetQueryParamNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02895690\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0405\u00a0ns\/op\r\n<\/code><\/pre>\n
        \u53ef\u4ee5\u770b\u5230\u6027\u80fd\u5927\u6982\u63d0\u5347\u4e8620\u591a\u500d<\/p>\n
        \u65b0\u5199\u7684\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u6709\u4e24\u4e2a\u5c0f\u7ec6\u8282\uff0c\u7b2c\u4e00\u662f\u8fd4\u56de\u503c\u4e2d\u533a\u5206\u4e86\u53c2\u6570\u662f\u5426\u5b58\u5728\uff0c\u8fd9\u4e2a\u540e\u9762\u4f1a\u7528\u5230\uff1b\u7b2c\u4e8c\u662f\u5b57\u7b26\u4e32\u7684\u64cd\u4f5c\u7528\u5230\u4e86 strings.Builder<\/code>\uff0c\u8fd9\u4e5f\u662f\u5b9e\u9645\u6d4b\u8bd5\u7684\u7ed3\u679c\uff0c\u4f7f\u7528 +<\/code>\u6216\u8005 fmt.Springf<\/code> \u6027\u80fd\u90fd\u6ca1\u8fd9\u4e2a\u597d\uff0c\u611f\u5174\u8da3\u53ef\u4ee5\u6d4b\u8bd5\u4e0b\u770b\u770b\u3002<\/p>\n
        \u4f18\u5316 url \u5199\u5165\u53c2\u6570\u6027\u80fd<\/h4>\n
        \u8ba1\u7b97\u51fa weight \u540e\u518d\u628a weight \u5199\u5165 url \u4e2d\uff0c\u8fd9\u91cc\u76f4\u63a5\u7ed9\u51fa\u4f18\u5316\u540e\u7684\u4ee3\u7801\uff1a<\/p>\n
        func<\/span>\u00a0AssembleUrlWeightNew<\/span>(rawurl\u00a0string<\/span>,\u00a0lidcWeight\u00a0int<\/span>)<\/span>\u00a0string<\/span><\/span>\u00a0{\r\n\u00a0if<\/span>\u00a0lidcWeight\u00a0==\u00a01<\/span>\u00a0{\r\n\u00a0\u00a0return<\/span>\u00a0rawurl\r\n\u00a0}<\/code><\/pre>\n
        lidcWeightStr,\u00a0err1\u00a0:=\u00a0GetUrlQueryParam(rawurl,\u00a0“lidc_weight”<\/span>)
        \nif<\/span>\u00a0err1\u00a0==\u00a0nil<\/span>\u00a0&&\u00a0lidcWeightStr\u00a0!=\u00a0“”<\/span>\u00a0{
        \nreturn<\/span>\u00a0rawurl
        \n}<\/p>\n
        <\/code><\/pre>\n
        var<\/span>\u00a0err\u00a0error
        \nendpointWeight\u00a0:=\u00a0100<\/span>
        \nweightStr,\u00a0err2\u00a0:=\u00a0GetUrlQueryParam(rawurl,\u00a0“weight”<\/span>)
        \nif<\/span>\u00a0weightStr\u00a0!=\u00a0“”<\/span>\u00a0{
        \nendpointWeight,\u00a0err\u00a0=\u00a0strconv.Atoi(weightStr)
        \nif<\/span>\u00a0err\u00a0!=\u00a0nil<\/span>\u00a0{
        \nendpointWeight\u00a0=\u00a0100<\/span>
        \n}
        \n}<\/p>\n
        <\/code><\/pre>\n
        if<\/span>\u00a0err2\u00a0!=\u00a0nil<\/span>\u00a0{\u00a0\/\/\u00a0url\u4e2d\u4e0d\u5b58\u5728weight<\/span>
        \nfinUrl\u00a0:=\u00a0strings.Builder{}
        \nfinUrl.WriteString(rawurl)
        \nif<\/span>\u00a0strings.Contains(rawurl,\u00a0“?”<\/span>)\u00a0{
        \nfinUrl.WriteString(“&weight=”<\/span>)
        \nfinUrl.WriteString(strconv.Itoa(lidcWeight\u00a0*\u00a0endpointWeight))
        \nreturn<\/span>\u00a0finUrl.String()
        \n}\u00a0else<\/span>\u00a0{
        \nfinUrl.WriteString(“?weight=”<\/span>)
        \nfinUrl.WriteString(strconv.Itoa(lidcWeight\u00a0*\u00a0endpointWeight))
        \nreturn<\/span>\u00a0finUrl.String()
        \n}
        \n}\u00a0else<\/span>\u00a0{\u00a0\/\/\u00a0url\u4e2d\u5b58\u5728weight<\/span>
        \noldWeightStr\u00a0:=\u00a0strings.Builder{}
        \noldWeightStr.WriteString(“weight=”<\/span>)
        \noldWeightStr.WriteString(weightStr)<\/p>\n
        <\/code><\/pre>\n
        newWeightStr\u00a0:=\u00a0strings.Builder{}
        \nnewWeightStr.WriteString(“weight=”<\/span>)
        \nnewWeightStr.WriteString(strconv.Itoa(lidcWeight\u00a0*\u00a0endpointWeight))
        \nreturn<\/span>\u00a0strings.ReplaceAll(rawurl,\u00a0oldWeightStr.String(),\u00a0newWeightStr.String())
        \n}
        \n}<\/p>\n
        <\/code><\/pre>\n
        \u4e3b\u8981\u5c31\u662f\u5206\u4e3a url \u4e2d\u662f\u5426\u5b58\u5728 weight \u4e24\u79cd\u60c5\u51b5\u6765\u8ba8\u8bba\uff1a<\/p>\n
          \n
        • \n
          url \u672c\u8eab\u4e0d\u5b58\u5728 weight \u53c2\u6570\uff0c\u5219\u76f4\u63a5\u5728 url \u540e\u62fc\u63a5\u4e00\u4e2a weight \u53c2\u6570\uff0c\u5f53\u7136\u8981\u6ce8\u610f\u662f\u5426\u5b58\u5728 ?<\/code><\/section>\n<\/li>\n
        • \n
          url \u672c\u8eab\u5b58\u5728 weight \u53c2\u6570\uff0c\u5219\u76f4\u63a5\u8fdb\u884c\u5b57\u7b26\u4e32\u66ff\u6362<\/section>\n<\/li>\n<\/ul>\n
          \u7ec6\u5fc3\u7684\u4f60\u80af\u5b9a\u53c8\u53d1\u73b0\u4e86\uff0c\u5f53 lidcWeight = 1<\/code> \u65f6\uff0c\u76f4\u63a5\u8fd4\u56de\uff0c\u56e0\u4e3a lidcWeight = 1<\/code> \u65f6\uff0c\u540e\u9762\u7684\u8ba1\u7b97\u5176\u5b9e\u90fd\u4e0d\u8d77\u4f5c\u7528\uff08Dubbo \u6743\u91cd\u9ed8\u8ba4\u4e3a100\uff09\uff0c\u7d22\u6027\u522b\u64cd\u4f5c\uff0c\u7701\u70b9 CPU\u3002<\/p>\n
          \u5168\u90e8\u4f18\u5316\u5b8c\uff0c\u603b\u4f53\u505a\u4e00\u4e0b benchmark\uff1a<\/p>\n
          func<\/span>\u00a0BenchmarkAssembleUrlWeight<\/span>(b\u00a0*testing.B)<\/span><\/span>\u00a0{\r\n\u00a0for<\/span>\u00a0i\u00a0:=\u00a00<\/span>;\u00a0i\u00a0<\u00a0b.N;\u00a0i++\u00a0{\r\n\u00a0\u00a0for<\/span>\u00a0_,\u00a0ut\u00a0:=\u00a0range<\/span>\u00a0[]string<\/span>{u,\u00a0u1,\u00a0u2,\u00a0u3}\u00a0{\r\n\u00a0\u00a0\u00a0AssembleUrlWeight(ut,\u00a060<\/span>)\r\n\u00a0\u00a0}\r\n\u00a0}\r\n}<\/code><\/pre>\n
          func<\/span>\u00a0BenchmarkAssembleUrlWeightNew<\/span>(b\u00a0*testing.B)<\/span><\/span>\u00a0{
          \nfor<\/span>\u00a0i\u00a0:=\u00a00<\/span>;\u00a0i\u00a0<\u00a0b.N;\u00a0i++\u00a0{
          \nfor<\/span>\u00a0_,\u00a0ut\u00a0:=\u00a0range<\/span>\u00a0[]string<\/span>{u,\u00a0u1,\u00a0u2,\u00a0u3}\u00a0{
          \nAssembleUrlWeightNew(ut,\u00a060<\/span>)
          \n}
          \n}
          \n}<\/p>\n
          <\/code><\/pre>\n
          \u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n
          BenchmarkAssembleUrlWeight-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a034275\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a033289\u00a0ns\/op\r\nBenchmarkAssembleUrlWeight-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a036646\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a032432\u00a0ns\/op\r\nBenchmarkAssembleUrlWeight-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a036702\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a032740\u00a0ns\/op\r\nBenchmarkAssembleUrlWeightNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0573684\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01851\u00a0ns\/op\r\nBenchmarkAssembleUrlWeightNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0646952\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01832\u00a0ns\/op\r\nBenchmarkAssembleUrlWeightNew-4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0563392\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a01896\u00a0ns\/op\r\n<\/code><\/pre>\n
          \u5927\u6982\u63d0\u5347 18 \u500d\u6027\u80fd\uff0c\u800c\u4e14\u8fd9\u53ef\u80fd\u8fd8\u662f\u6bd4\u8f83\u5dee\u7684\u60c5\u51b5\uff0c\u5982\u679c\u4f20\u5165 lidcWeight = 1\uff0c\u6548\u679c\u66f4\u597d\u3002<\/p>\n
          \u6548\u679c<\/h3>\n
          \u4f18\u5316\u5b8c\uff0c\u5bf9\u6539\u52a8\u65b9\u6cd5\u5199\u4e86\u76f8\u5e94\u7684\u5355\u5143\u6d4b\u8bd5\uff0c\u786e\u8ba4\u6ca1\u95ee\u9898\u540e\uff0c\u4e0a\u7ebf\u8fdb\u884c\u89c2\u5bdf\uff0cCPU Idle\uff08\u7a7a\u95f2\u7387\uff09 \u63d0\u5347\u4e8610%\u4ee5\u4e0a<\/p>\n
          <\/figure>\n
          \u6700\u540e<\/h3>\n
          \u5176\u5b9e\u672c\u6587\u5c55\u793a\u7684\u662f\u4e00\u4e2a Go \u7a0b\u5e8f\u975e\u5e38\u5e38\u89c4\u7684\u6027\u80fd\u4f18\u5316\uff0c\u4e5f\u662f\u76f8\u5bf9\u6765\u8bf4\u6bd4\u8f83\u7b80\u5355\uff0c\u770b\u5b8c\u540e\uff0c\u5927\u5bb6\u53ef\u80fd\u8fd8\u6709\u7591\u95ee\uff1a<\/p>\n
            \n
          • \n
            \u4e3a\u4ec0\u4e48\u8981\u5728\u63a8\u9001\u548c\u62c9\u53d6\u7684\u65f6\u5019\u53bb\u89e3\u6790 url \u5462\uff1f\u4e0d\u80fd\u4e8b\u5148\u7b97\u597d\u5b58\u8d77\u6765\u5417\uff1f<\/section>\n<\/li>\n
          • \n
            \u4e3a\u4ec0\u4e48\u53ea\u4f18\u5316\u4e86\u8fd9\u70b9\uff0c\u5176\u4ed6\u7684\u70b9\u662f\u5426\u4e5f\u53ef\u4ee5\u4f18\u5316\u5462\uff1f<\/section>\n<\/li>\n<\/ul>\n
            \u9488\u5bf9\u7b2c\u4e00\u4e2a\u95ee\u9898\uff0c\u5176\u5b9e\u8fd9\u662f\u4e2a\u5386\u53f2\u95ee\u9898\uff0c\u5f53\u4f60\u63a5\u624b\u7cfb\u7edf\u65f6\u4ed6\u5c31\u662f\u8fd9\u6837\uff0c\u5982\u679c\u7a0b\u5e8f\u51fa\u95ee\u9898\uff0c\u4f60\u53bb\u6539\u6574\u4e2a\u673a\u5236\uff0c\u53ef\u80fd\u5468\u671f\u6bd4\u8f83\u957f\uff0c\u800c\u4e14\u5bb9\u6613\u51fa\u95ee\u9898<\/p>\n
            <\/div><\/figure>\n
            \u7b2c\u4e8c\u4e2a\u95ee\u9898\uff0c\u5176\u5b9e\u521a\u4e5f\u987a\u5e26\u56de\u7b54\u4e86\uff0c\u8fd9\u6837\u4f18\u5316\uff0c\u6539\u52a8\u6700\u5c0f\uff0c\u6536\u76ca\u6700\u5927\uff0c\u522b\u7684\u70b9\u6ca1\u8fd9\u4e48\u597d\u6539\uff0c\u77ed\u671f\u6765\u8bf4\uff0c\u62ff\u6536\u76ca\u6700\u91cd\u8981\u3002\u5f53\u7136\u6211\u4eec\u540e\u7eed\u4e5f\u6253\u7b97\u5bf9\u8fd9\u4e2a\u7cfb\u7edf\u8fdb\u884c\u91cd\u6784\uff0c\u4f46\u91cd\u6784\u4e4b\u524d\uff0c\u8fd9\u6837\u4f18\u5316\uff0c\u8db3\u4ee5\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n<\/section>\n
            <\/section>\n<\/section>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
            \u80cc\u666f \u6700\u8fd1\u8d1f\u8d23\u7684\u4e00\u4e2a\u81ea\u7814\u7684 Dubbo \u6ce8\u518c\u4e2d\u5fc3\u7ecf\u5e38\u6536\u5230 CPU \u4f7f\u7528\u7387\u7684\u544a\u8b66\uff0c\u4e8e\u662f\u8fdb\u884c\u4e86\u4e00\u6ce2\u4f18\u5316\uff0c\u6548\u679c\u8fd8\u4e0d\u9519 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-4721","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/4721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4721"}],"version-history":[{"count":1,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/4721\/revisions"}],"predecessor-version":[{"id":4855,"href":"https:\/\/www.xh86.me\/index.php?rest_route=\/wp\/v2\/posts\/4721\/revisions\/4855"}],"wp:attachment":[{"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xh86.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}