{"id":906,"date":"2026-02-11T11:06:13","date_gmt":"2026-02-11T03:06:13","guid":{"rendered":"https:\/\/www.ixriver.com\/?p=906"},"modified":"2026-02-11T11:06:13","modified_gmt":"2026-02-11T03:06:13","slug":"ios-trace-%e6%95%b0%e6%8d%ae%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/p.ixriver.com\/?p=906","title":{"rendered":"iOS Trace \u6570\u636e\u89e3\u6790"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/p.ixriver.com\/?p=906\/#iOS_Trace_%E6%95%B0%E6%8D%AE%E8%A7%A3%E6%9E%90\" title=\"iOS Trace \u6570\u636e\u89e3\u6790\">iOS Trace \u6570\u636e\u89e3\u6790<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E7%9B%AE%E5%BD%95\" title=\"\u76ee\u5f55\">\u76ee\u5f55<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E6%A6%82%E8%A7%88\" title=\"\u6982\u89c8\">\u6982\u89c8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E4%B8%80%E3%80%81%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\" title=\"\u4e00\u3001\u57fa\u672c\u6982\u5ff5\">\u4e00\u3001\u57fa\u672c\u6982\u5ff5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/p.ixriver.com\/?p=906\/#11_all_weight_%E5%92%8C_self_weight\" title=\"1.1 all_weight \u548c self_weight\">1.1 all_weight \u548c self_weight<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/p.ixriver.com\/?p=906\/#12_Trace_%E6%96%87%E4%BB%B6%E7%BB%93%E6%9E%84\" title=\"1.2 Trace \u6587\u4ef6\u7ed3\u6784\">1.2 Trace \u6587\u4ef6\u7ed3\u6784<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E4%BA%8C%E3%80%81%E7%AC%A6%E5%8F%B7%E5%8C%96\" title=\"\u4e8c\u3001\u7b26\u53f7\u5316\">\u4e8c\u3001\u7b26\u53f7\u5316<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/p.ixriver.com\/?p=906\/#21_%E7%AC%A6%E5%8F%B7%E5%8C%96%E6%B5%81%E7%A8%8B\" title=\"2.1 \u7b26\u53f7\u5316\u6d41\u7a0b\">2.1 \u7b26\u53f7\u5316\u6d41\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/p.ixriver.com\/?p=906\/#22_%E6%9F%A5%E7%9C%8B%E6%A8%A1%E5%9D%97_UUID\" title=\"2.2 \u67e5\u770b\u6a21\u5757 UUID\">2.2 \u67e5\u770b\u6a21\u5757 UUID<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E6%96%B9%E6%B3%95%E4%B8%80%EF%BC%9A%E4%BD%BF%E7%94%A8_symbols_%E5%91%BD%E4%BB%A4\" title=\"\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 symbols \u547d\u4ee4\">\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 symbols \u547d\u4ee4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E6%96%B9%E6%B3%95%E4%BA%8C%EF%BC%9A%E4%BD%BF%E7%94%A8_dwarfdump_%E5%91%BD%E4%BB%A4\" title=\"\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 dwarfdump \u547d\u4ee4\">\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 dwarfdump \u547d\u4ee4<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/p.ixriver.com\/?p=906\/#23_%E8%8E%B7%E5%8F%96%E6%A8%A1%E5%9D%97%E4%BF%A1%E6%81%AF\" title=\"2.3 \u83b7\u53d6\u6a21\u5757\u4fe1\u606f\">2.3 \u83b7\u53d6\u6a21\u5757\u4fe1\u606f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/p.ixriver.com\/?p=906\/#24_%E7%94%9F%E6%88%90_Symbols_%E6%96%87%E4%BB%B6\" title=\"2.4 \u751f\u6210 Symbols \u6587\u4ef6\">2.4 \u751f\u6210 Symbols \u6587\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/p.ixriver.com\/?p=906\/#25_%E4%BD%BF%E7%94%A8_atos_%E7%AC%A6%E5%8F%B7%E5%8C%96\" title=\"2.5 \u4f7f\u7528 atos \u7b26\u53f7\u5316\">2.5 \u4f7f\u7528 atos \u7b26\u53f7\u5316<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E4%B8%89%E3%80%81Trace_%E6%96%87%E4%BB%B6%E6%A0%BC%E5%BC%8F\" title=\"\u4e09\u3001Trace \u6587\u4ef6\u683c\u5f0f\">\u4e09\u3001Trace \u6587\u4ef6\u683c\u5f0f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/p.ixriver.com\/?p=906\/#31_Trace_%E6%96%87%E4%BB%B6%E7%BB%93%E6%9E%84\" title=\"3.1 Trace \u6587\u4ef6\u7ed3\u6784\">3.1 Trace \u6587\u4ef6\u7ed3\u6784<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/p.ixriver.com\/?p=906\/#32_Symbols_%E6%96%87%E4%BB%B6%E6%A0%BC%E5%BC%8F\" title=\"3.2 Symbols \u6587\u4ef6\u683c\u5f0f\">3.2 Symbols \u6587\u4ef6\u683c\u5f0f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/p.ixriver.com\/?p=906\/#33_XML_%E6%A0%BC%E5%BC%8F%E8%AF%B4%E6%98%8E\" title=\"3.3 XML \u683c\u5f0f\u8bf4\u660e\">3.3 XML \u683c\u5f0f\u8bf4\u660e<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E5%9F%BA%E6%9C%AC%E5%85%83%E7%B4%A0\" title=\"\u57fa\u672c\u5143\u7d20\">\u57fa\u672c\u5143\u7d20<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/p.ixriver.com\/?p=906\/#weight_%E5%85%83%E7%B4%A0\" title=\"weight \u5143\u7d20\">weight \u5143\u7d20<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/p.ixriver.com\/?p=906\/#text-address_%E5%85%83%E7%B4%A0\" title=\"text-address \u5143\u7d20\">text-address \u5143\u7d20<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/p.ixriver.com\/?p=906\/#backtrace_%E5%85%83%E7%B4%A0\" title=\"backtrace \u5143\u7d20\">backtrace \u5143\u7d20<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E5%9B%9B%E3%80%81%E8%A7%A3%E6%9E%90%E6%B5%81%E7%A8%8B\" title=\"\u56db\u3001\u89e3\u6790\u6d41\u7a0b\">\u56db\u3001\u89e3\u6790\u6d41\u7a0b<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/p.ixriver.com\/?p=906\/#41_%E8%A7%A3%E6%9E%90%E6%AD%A5%E9%AA%A4\" title=\"4.1 \u89e3\u6790\u6b65\u9aa4\">4.1 \u89e3\u6790\u6b65\u9aa4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/p.ixriver.com\/?p=906\/#42_%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E6%98%A0%E5%B0%84\" title=\"4.2 \u6570\u636e\u7ed3\u6784\u6620\u5c04\">4.2 \u6570\u636e\u7ed3\u6784\u6620\u5c04<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/p.ixriver.com\/?p=906\/#43_%E7%BA%BF%E7%A8%8B%E6%A0%91%E6%9E%84%E5%BB%BA\" title=\"4.3 \u7ebf\u7a0b\u6811\u6784\u5efa\">4.3 \u7ebf\u7a0b\u6811\u6784\u5efa<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E4%BA%94%E3%80%81%E6%95%B0%E6%8D%AE%E7%BB%9F%E8%AE%A1%E6%96%B9%E6%B3%95\" title=\"\u4e94\u3001\u6570\u636e\u7edf\u8ba1\u65b9\u6cd5\">\u4e94\u3001\u6570\u636e\u7edf\u8ba1\u65b9\u6cd5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/p.ixriver.com\/?p=906\/#51_%E5%B9%B3%E5%9D%87%E7%BB%9F%E8%AE%A1_vs_%E5%8A%A0%E6%9D%83%E5%B9%B3%E5%9D%87\" title=\"5.1 \u5e73\u5747\u7edf\u8ba1 vs \u52a0\u6743\u5e73\u5747\">5.1 \u5e73\u5747\u7edf\u8ba1 vs \u52a0\u6743\u5e73\u5747<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E5%B9%B3%E5%9D%87%E7%BB%9F%E8%AE%A1\" title=\"\u5e73\u5747\u7edf\u8ba1\">\u5e73\u5747\u7edf\u8ba1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E5%8A%A0%E6%9D%83%E5%B9%B3%E5%9D%87\" title=\"\u52a0\u6743\u5e73\u5747\">\u52a0\u6743\u5e73\u5747<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/p.ixriver.com\/?p=906\/#52_%E5%88%86%E4%BD%8D%E6%95%B0%E7%BB%9F%E8%AE%A1\" title=\"5.2 \u5206\u4f4d\u6570\u7edf\u8ba1\">5.2 \u5206\u4f4d\u6570\u7edf\u8ba1<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E5%B8%B8%E7%94%A8%E5%88%86%E4%BD%8D%E6%95%B0\" title=\"\u5e38\u7528\u5206\u4f4d\u6570\">\u5e38\u7528\u5206\u4f4d\u6570<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E4%BC%98%E5%8A%BF\" title=\"\u4f18\u52bf\">\u4f18\u52bf<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/p.ixriver.com\/?p=906\/#53_%E7%BB%9F%E8%AE%A1%E6%96%B9%E6%B3%95%E9%80%89%E6%8B%A9%E5%BB%BA%E8%AE%AE\" title=\"5.3 \u7edf\u8ba1\u65b9\u6cd5\u9009\u62e9\u5efa\u8bae\">5.3 \u7edf\u8ba1\u65b9\u6cd5\u9009\u62e9\u5efa\u8bae<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/p.ixriver.com\/?p=906\/#%E6%80%BB%E7%BB%93\" title=\"\u603b\u7ed3\">\u603b\u7ed3<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"iOS_Trace_%E6%95%B0%E6%8D%AE%E8%A7%A3%E6%9E%90\"><\/span>iOS Trace \u6570\u636e\u89e3\u6790<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"%E7%9B%AE%E5%BD%95\"><\/span>\u76ee\u5f55<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><a href=\"#ios-trace-\u6570\u636e\u89e3\u6790\">iOS Trace \u6570\u636e\u89e3\u6790<\/a><\/li>\n<li><a href=\"#\u76ee\u5f55\">\u76ee\u5f55<\/a><\/li>\n<li><a href=\"#\u6982\u89c8\">\u6982\u89c8<\/a><\/li>\n<li><a href=\"#\u4e00\u57fa\u672c\u6982\u5ff5\">\u4e00\u3001\u57fa\u672c\u6982\u5ff5<\/a>\n<ul>\n<li><a href=\"#11-all_weight-\u548c-self_weight\">1.1 all_weight \u548c self_weight<\/a><\/li>\n<li><a href=\"#12-trace-\u6587\u4ef6\u7ed3\u6784\">1.2 Trace \u6587\u4ef6\u7ed3\u6784<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\u4e8c\u7b26\u53f7\u5316\">\u4e8c\u3001\u7b26\u53f7\u5316<\/a>\n<ul>\n<li><a href=\"#21-\u7b26\u53f7\u5316\u6d41\u7a0b\">2.1 \u7b26\u53f7\u5316\u6d41\u7a0b<\/a><\/li>\n<li><a href=\"#22-\u67e5\u770b\u6a21\u5757-uuid\">2.2 \u67e5\u770b\u6a21\u5757 UUID<\/a><\/li>\n<li><a href=\"#\u65b9\u6cd5\u4e00\u4f7f\u7528-symbols-\u547d\u4ee4\">\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 symbols \u547d\u4ee4<\/a><\/li>\n<li><a href=\"#\u65b9\u6cd5\u4e8c\u4f7f\u7528-dwarfdump-\u547d\u4ee4\">\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 dwarfdump \u547d\u4ee4<\/a><\/li>\n<li><a href=\"#23-\u83b7\u53d6\u6a21\u5757\u4fe1\u606f\">2.3 \u83b7\u53d6\u6a21\u5757\u4fe1\u606f<\/a><\/li>\n<li><a href=\"#24-\u751f\u6210-symbols-\u6587\u4ef6\">2.4 \u751f\u6210 Symbols \u6587\u4ef6<\/a><\/li>\n<li><a href=\"#25-\u4f7f\u7528-atos-\u7b26\u53f7\u5316\">2.5 \u4f7f\u7528 atos \u7b26\u53f7\u5316<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\u4e09trace-\u6587\u4ef6\u683c\u5f0f\">\u4e09\u3001Trace \u6587\u4ef6\u683c\u5f0f<\/a>\n<ul>\n<li><a href=\"#31-trace-\u6587\u4ef6\u7ed3\u6784\">3.1 Trace \u6587\u4ef6\u7ed3\u6784<\/a><\/li>\n<li><a href=\"#32-symbols-\u6587\u4ef6\u683c\u5f0f\">3.2 Symbols \u6587\u4ef6\u683c\u5f0f<\/a><\/li>\n<li><a href=\"#33-xml-\u683c\u5f0f\u8bf4\u660e\">3.3 XML \u683c\u5f0f\u8bf4\u660e<\/a><\/li>\n<li><a href=\"#\u57fa\u672c\u5143\u7d20\">\u57fa\u672c\u5143\u7d20<\/a><\/li>\n<li><a href=\"#weight-\u5143\u7d20\">weight \u5143\u7d20<\/a><\/li>\n<li><a href=\"#text-address-\u5143\u7d20\">text-address \u5143\u7d20<\/a><\/li>\n<li><a href=\"#backtrace-\u5143\u7d20\">backtrace \u5143\u7d20<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\u56db\u89e3\u6790\u6d41\u7a0b\">\u56db\u3001\u89e3\u6790\u6d41\u7a0b<\/a>\n<ul>\n<li><a href=\"#41-\u89e3\u6790\u6b65\u9aa4\">4.1 \u89e3\u6790\u6b65\u9aa4<\/a><\/li>\n<li><a href=\"#42-\u6570\u636e\u7ed3\u6784\u6620\u5c04\">4.2 \u6570\u636e\u7ed3\u6784\u6620\u5c04<\/a><\/li>\n<li><a href=\"#43-\u7ebf\u7a0b\u6811\u6784\u5efa\">4.3 \u7ebf\u7a0b\u6811\u6784\u5efa<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\u4e94\u6570\u636e\u7edf\u8ba1\u65b9\u6cd5\">\u4e94\u3001\u6570\u636e\u7edf\u8ba1\u65b9\u6cd5<\/a>\n<ul>\n<li><a href=\"#51-\u5e73\u5747\u7edf\u8ba1-vs-\u52a0\u6743\u5e73\u5747\">5.1 \u5e73\u5747\u7edf\u8ba1 vs \u52a0\u6743\u5e73\u5747<\/a><\/li>\n<li><a href=\"#\u5e73\u5747\u7edf\u8ba1\">\u5e73\u5747\u7edf\u8ba1<\/a><\/li>\n<li><a href=\"#\u52a0\u6743\u5e73\u5747\">\u52a0\u6743\u5e73\u5747<\/a><\/li>\n<li><a href=\"#52-\u5206\u4f4d\u6570\u7edf\u8ba1\">5.2 \u5206\u4f4d\u6570\u7edf\u8ba1<\/a><\/li>\n<li><a href=\"#\u5e38\u7528\u5206\u4f4d\u6570\">\u5e38\u7528\u5206\u4f4d\u6570<\/a><\/li>\n<li><a href=\"#\u4f18\u52bf\">\u4f18\u52bf<\/a><\/li>\n<li><a href=\"#53-\u7edf\u8ba1\u65b9\u6cd5\u9009\u62e9\u5efa\u8bae\">5.3 \u7edf\u8ba1\u65b9\u6cd5\u9009\u62e9\u5efa\u8bae<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"#\u603b\u7ed3\">\u603b\u7ed3<\/a><\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E6%A6%82%E8%A7%88\"><\/span>\u6982\u89c8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u672c\u6587\u6863\u4ecb\u7ecd\u5982\u4f55\u89e3\u6790\u548c\u5206\u6790 Xcode Instruments \u751f\u6210\u7684 Trace \u6587\u4ef6\u3002Trace \u6587\u4ef6\u5305\u542b\u4e86\u5e94\u7528\u8fd0\u884c\u65f6\u7684\u6027\u80fd\u6570\u636e\uff0c\u5305\u62ec CPU \u4f7f\u7528\u60c5\u51b5\u3001\u51fd\u6570\u8c03\u7528\u5806\u6808\u3001\u7ebf\u7a0b\u4fe1\u606f\u7b49\u3002\u901a\u8fc7\u89e3\u6790 Trace \u6587\u4ef6\uff0c\u53ef\u4ee5\u6df1\u5165\u4e86\u89e3\u5e94\u7528\u7684\u6027\u80fd\u7279\u5f81\uff0c\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<p><strong>\u4e3b\u8981\u5185\u5bb9<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u57fa\u672c\u6982\u5ff5<\/strong>\uff1a\u7406\u89e3 Trace \u6587\u4ef6\u4e2d\u7684\u5173\u952e\u6982\u5ff5\uff0c\u5982 <code>all_weight<\/code> \u548c <code>self_weight<\/code><\/li>\n<li><strong>\u7b26\u53f7\u5316<\/strong>\uff1a\u5c06\u5185\u5b58\u5730\u5740\u8f6c\u6362\u4e3a\u53ef\u8bfb\u7684\u51fd\u6570\u540d\u548c\u4ee3\u7801\u4f4d\u7f6e<\/li>\n<li><strong>\u6587\u4ef6\u683c\u5f0f<\/strong>\uff1a\u4e86\u89e3 Trace \u6587\u4ef6\u7684\u5185\u90e8\u7ed3\u6784<\/li>\n<li><strong>\u89e3\u6790\u6d41\u7a0b<\/strong>\uff1a\u638c\u63e1\u89e3\u6790 Trace \u6587\u4ef6\u7684\u5b8c\u6574\u6d41\u7a0b<\/li>\n<li><strong>\u6570\u636e\u7edf\u8ba1<\/strong>\uff1a\u5b66\u4e60\u5982\u4f55\u6b63\u786e\u7edf\u8ba1\u548c\u5206\u6790\u6027\u80fd\u6570\u636e<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E4%B8%80%E3%80%81%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\"><\/span>\u4e00\u3001\u57fa\u672c\u6982\u5ff5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"11_all_weight_%E5%92%8C_self_weight\"><\/span>1.1 all_weight \u548c self_weight<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5728 Instruments \u7684\u6027\u80fd\u6570\u636e\u4e2d\uff0c\u6bcf\u4e2a\u51fd\u6570\u90fd\u6709\u4e24\u4e2a\u91cd\u8981\u7684\u65f6\u95f4\u6307\u6807\uff1a<\/p>\n<ul>\n<li><strong>all_weight<\/strong>\uff1a\u5305\u542b\u5b50\u51fd\u6570\u8c03\u7528\u7684\u603b\u6267\u884c\u65f6\u95f4<\/li>\n<li>\u8868\u793a\u51fd\u6570\u53ca\u5176\u6240\u6709\u5b50\u51fd\u6570\u7684\u603b\u8017\u65f6<\/li>\n<li>\n<p>\u7528\u4e8e\u4e86\u89e3\u51fd\u6570\u5728\u6574\u4e2a\u8c03\u7528\u94fe\u4e2d\u7684\u603b\u5f00\u9500<\/p>\n<\/li>\n<li>\n<p><strong>self_weight<\/strong>\uff1a\u51fd\u6570\u81ea\u8eab\u6267\u884c\u65f6\u95f4\uff08\u4e0d\u5305\u542b\u5b50\u51fd\u6570\u8c03\u7528\uff09<\/p>\n<\/li>\n<li>\u8868\u793a\u51fd\u6570\u672c\u8eab\u7684\u6267\u884c\u65f6\u95f4\uff0c\u4e0d\u5305\u62ec\u8c03\u7528\u5176\u4ed6\u51fd\u6570\u7684\u65f6\u95f4<\/li>\n<li>\u7528\u4e8e\u4e86\u89e3\u51fd\u6570\u672c\u8eab\u7684\u6027\u80fd\u5f00\u9500<\/li>\n<\/ul>\n<p><strong>\u5173\u7cfb\u516c\u5f0f<\/strong>\uff1a<\/p>\n<pre><code>all_weight = self_weight + sum(\u5b50\u51fd\u6570\u7684 all_weight)\n<\/code><\/pre>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<p>\u5047\u8bbe\u51fd\u6570 <code>A()<\/code> \u8c03\u7528\u4e86 <code>B()<\/code> \u548c <code>C()<\/code>\uff1a<\/p>\n<pre><code>A() {\n    \/\/ self_weight = 10ms\n    B();  \/\/ all_weight = 20ms\n    C();  \/\/ all_weight = 30ms\n}\n\nA \u7684 all_weight = 10 + 20 + 30 = 60ms\nA \u7684 self_weight = 10ms\n<\/code><\/pre>\n<p><strong>\u4f7f\u7528\u573a\u666f<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>all_weight<\/strong>\uff1a\u7528\u4e8e\u5206\u6790\u51fd\u6570\u5728\u6574\u4e2a\u8c03\u7528\u94fe\u4e2d\u7684\u603b\u5f00\u9500\uff0c\u9002\u5408\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888<\/li>\n<li><strong>self_weight<\/strong>\uff1a\u7528\u4e8e\u5206\u6790\u51fd\u6570\u672c\u8eab\u7684\u6027\u80fd\uff0c\u9002\u5408\u4f18\u5316\u51fd\u6570\u5185\u90e8\u5b9e\u73b0<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"12_Trace_%E6%96%87%E4%BB%B6%E7%BB%93%E6%9E%84\"><\/span>1.2 Trace \u6587\u4ef6\u7ed3\u6784<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trace \u6587\u4ef6\u662f Instruments \u751f\u6210\u7684\u6027\u80fd\u6570\u636e\u6587\u4ef6\uff0c\u5305\u542b\u4ee5\u4e0b\u6838\u5fc3\u5143\u7d20\uff1a<\/p>\n<ul>\n<li><strong>id<\/strong>\uff1a\u6240\u6709\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u5168\u5c40\u552f\u4e00\u7684 <code>id<\/code><\/li>\n<li><strong>weight<\/strong>\uff1a\u8868\u793a\u6267\u884c\u65f6\u95f4\u6216\u6743\u91cd<\/li>\n<li><strong>text-address<\/strong>\uff1a\u51fd\u6570\u8c03\u7528\u5730\u5740<\/li>\n<li><strong>backtrace<\/strong>\uff1a\u8c03\u7528\u5806\u6808\u4fe1\u606f<\/li>\n<li><strong>thread<\/strong>\uff1a\u7ebf\u7a0b\u4fe1\u606f<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E4%BA%8C%E3%80%81%E7%AC%A6%E5%8F%B7%E5%8C%96\"><\/span>\u4e8c\u3001\u7b26\u53f7\u5316<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7b26\u53f7\u5316\u662f\u5c06\u5185\u5b58\u5730\u5740\u8f6c\u6362\u4e3a\u53ef\u8bfb\u7684\u51fd\u6570\u540d\u548c\u4ee3\u7801\u4f4d\u7f6e\u7684\u8fc7\u7a0b\u3002\u8fd9\u662f\u89e3\u6790 Trace \u6587\u4ef6\u7684\u5173\u952e\u6b65\u9aa4\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"21_%E7%AC%A6%E5%8F%B7%E5%8C%96%E6%B5%81%E7%A8%8B\"><\/span>2.1 \u7b26\u53f7\u5316\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u5b8c\u6574\u6d41\u7a0b<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u751f\u6210\u6a21\u5757\u5217\u8868\u6587\u4ef6<\/strong>\uff1a\u83b7\u53d6\u6240\u6709\u6a21\u5757\u7684 UUID \u548c\u57fa\u672c\u4fe1\u606f<\/li>\n<li><strong>\u4f7f\u7528 <code>atos<\/code> \u547d\u4ee4\u7b26\u53f7\u5316\u5730\u5740<\/strong>\uff1a\u5c06\u5185\u5b58\u5730\u5740\u8f6c\u6362\u4e3a\u51fd\u6570\u540d\u548c\u884c\u53f7<\/li>\n<li><strong>\u751f\u6210 Symbols \u6587\u4ef6<\/strong>\uff1a\u4e3a\u540e\u7eed\u89e3\u6790\u51c6\u5907\u7b26\u53f7\u4fe1\u606f<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"22_%E6%9F%A5%E7%9C%8B%E6%A8%A1%E5%9D%97_UUID\"><\/span>2.2 \u67e5\u770b\u6a21\u5757 UUID<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6bcf\u4e2a\u6a21\u5757\uff08\u53ef\u6267\u884c\u6587\u4ef6\u3001\u52a8\u6001\u5e93\u7b49\uff09\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684 UUID\uff0c\u7528\u4e8e\u6807\u8bc6\u548c\u5339\u914d\u7b26\u53f7\u6587\u4ef6\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%E6%96%B9%E6%B3%95%E4%B8%80%EF%BC%9A%E4%BD%BF%E7%94%A8_symbols_%E5%91%BD%E4%BB%A4\"><\/span>\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 symbols \u547d\u4ee4<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-bash\">'\/Applications\/Xcode.app\/Contents\/Developer\/usr\/bin\/symbols' -uuid 'WeMeetApp.app.dSYM\/Contents\/Resources\/DWARF\/WeMeetApp'\n<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"%E6%96%B9%E6%B3%95%E4%BA%8C%EF%BC%9A%E4%BD%BF%E7%94%A8_dwarfdump_%E5%91%BD%E4%BB%A4\"><\/span>\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 dwarfdump \u547d\u4ee4<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<pre><code class=\"language-bash\">xcrun dwarfdump --uuid *.dSYM\n<\/code><\/pre>\n<p><strong>\u8f93\u51fa\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code>UUID: 7C6E3623-FD50-3603-82E3-7F4F29B5DF76 (arm64) WeMeetApp.app.dSYM\/Contents\/Resources\/DWARF\/WeMeetApp\n<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"23_%E8%8E%B7%E5%8F%96%E6%A8%A1%E5%9D%97%E4%BF%A1%E6%81%AF\"><\/span>2.3 \u83b7\u53d6\u6a21\u5757\u4fe1\u606f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u83b7\u53d6\u6a21\u5757\u7684\u57fa\u5730\u5740\u548c\u5927\u5c0f\u7b49\u4fe1\u606f\uff0c\u7528\u4e8e\u5730\u5740\u8ba1\u7b97\u3002<\/p>\n<pre><code class=\"language-bash\">'\/Applications\/Xcode.app\/Contents\/Developer\/Toolchains\/XcodeDefault.xctoolchain\/usr\/bin\/otool' -arch arm64 -l '\/Users\/mjzheng\/Library\/Developer\/Xcode\/iOS DeviceSupport\/14.1 (18A8395)\/Symbols\/usr\/lib\/system\/libsystem_pthread.dylib'\n<\/code><\/pre>\n<p><strong>\u5173\u952e\u4fe1\u606f<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u57fa\u5730\u5740\uff08Load Address\uff09<\/strong>\uff1a\u6a21\u5757\u5728\u5185\u5b58\u4e2d\u7684\u8d77\u59cb\u5730\u5740<\/li>\n<li><strong>\u5927\u5c0f\uff08Size\uff09<\/strong>\uff1a\u6a21\u5757\u7684\u5927\u5c0f<\/li>\n<li><strong>\u67b6\u6784\uff08Architecture\uff09<\/strong>\uff1aarm64\u3001armv7 \u7b49<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"24_%E7%94%9F%E6%88%90_Symbols_%E6%96%87%E4%BB%B6\"><\/span>2.4 \u751f\u6210 Symbols \u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u751f\u6210\u7b26\u53f7\u6587\u4ef6\u5305\uff0c\u7528\u4e8e\u540e\u7eed\u7684\u7b26\u53f7\u5316\u8fc7\u7a0b\u3002<\/p>\n<pre><code class=\"language-bash\">xcrun symbols -arch all -symbolsPackageDir symbols WeMeetApp.app.dSYM\/Contents\/Resources\/DWARF\/WeMeetApp\n<\/code><\/pre>\n<p><strong>\u53c2\u6570\u8bf4\u660e<\/strong>\uff1a<\/p>\n<ul>\n<li><code>-arch all<\/code>\uff1a\u751f\u6210\u6240\u6709\u67b6\u6784\u7684\u7b26\u53f7\u6587\u4ef6<\/li>\n<li><code>-symbolsPackageDir symbols<\/code>\uff1a\u6307\u5b9a\u7b26\u53f7\u6587\u4ef6\u8f93\u51fa\u76ee\u5f55<\/li>\n<li>\u6700\u540e\u4e00\u4e2a\u53c2\u6570\uff1adSYM \u6587\u4ef6\u7684\u8def\u5f84<\/li>\n<\/ul>\n<p><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n<p>\u4f1a\u5728 <code>symbols<\/code> \u76ee\u5f55\u4e0b\u751f\u6210\u4ee5 UUID \u547d\u540d\u7684 <code>.symbols<\/code> \u6587\u4ef6\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>symbols\/7C6E3623-FD50-3603-82E3-7F4F29B5DF76.symbols\n<\/code><\/pre>\n<p><strong>\u53c2\u8003<\/strong>\uff1aGoogle \u641c\u7d22\u5173\u952e\u8bcd\uff1a<code>xcrun symbols<\/code><\/p>\n<h3><span class=\"ez-toc-section\" id=\"25_%E4%BD%BF%E7%94%A8_atos_%E7%AC%A6%E5%8F%B7%E5%8C%96\"><\/span>2.5 \u4f7f\u7528 atos \u7b26\u53f7\u5316<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u4f7f\u7528 <code>atos<\/code> \u547d\u4ee4\u5c06\u5185\u5b58\u5730\u5740\u8f6c\u6362\u4e3a\u51fd\u6570\u540d\u548c\u884c\u53f7\u3002<\/p>\n<pre><code class=\"language-bash\"># \u57fa\u672c\u7528\u6cd5\natos -o &lt;binary&gt; -l &lt;load_address&gt; &lt;address&gt;\n\n# \u793a\u4f8b\natos -o WeMeetApp.app\/WeMeetApp -l 0x100000000 0x100001234\n<\/code><\/pre>\n<p><strong>\u53c2\u6570\u8bf4\u660e<\/strong>\uff1a<\/p>\n<ul>\n<li><code>-o<\/code>\uff1a\u6307\u5b9a\u53ef\u6267\u884c\u6587\u4ef6\u6216 dSYM \u6587\u4ef6<\/li>\n<li><code>-l<\/code>\uff1a\u6307\u5b9a\u6a21\u5757\u7684\u52a0\u8f7d\u5730\u5740\uff08Load Address\uff09<\/li>\n<li>\u6700\u540e\u4e00\u4e2a\u53c2\u6570\uff1a\u8981\u7b26\u53f7\u5316\u7684\u5185\u5b58\u5730\u5740<\/li>\n<\/ul>\n<p><strong>\u8f93\u51fa\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code>-[ViewController viewDidLoad] (in WeMeetApp) (ViewController.m:45)\n<\/code><\/pre>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E4%B8%89%E3%80%81Trace_%E6%96%87%E4%BB%B6%E6%A0%BC%E5%BC%8F\"><\/span>\u4e09\u3001Trace \u6587\u4ef6\u683c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"31_Trace_%E6%96%87%E4%BB%B6%E7%BB%93%E6%9E%84\"><\/span>3.1 Trace \u6587\u4ef6\u7ed3\u6784<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trace \u6587\u4ef6\uff08<code>.trace<\/code>\uff09\u662f Instruments \u751f\u6210\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>xctrace<\/code> \u547d\u4ee4\u5bfc\u51fa\u4e3a XML \u683c\u5f0f\u8fdb\u884c\u5206\u6790\u3002<\/p>\n<p><strong>\u5bfc\u51fa XML<\/strong>\uff1a<\/p>\n<pre><code class=\"language-bash\">xcrun xctrace export --input 34.trace --xpath '\/trace-toc\/run[@number=&quot;1&quot;]\/data\/table[@schema=&quot;time-profile&quot;]' --output 34.xml\n<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"32_Symbols_%E6%96%87%E4%BB%B6%E6%A0%BC%E5%BC%8F\"><\/span>3.2 Symbols \u6587\u4ef6\u683c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Symbols \u6587\u4ef6\u4ee5\u6a21\u5757\u7684 UUID \u547d\u540d\uff0c\u683c\u5f0f\u4e3a\uff1a<\/p>\n<pre><code>&lt;UUID&gt;.symbols\n<\/code><\/pre>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code>7C6E3623-FD50-3603-82E3-7F4F29B5DF76.symbols\n<\/code><\/pre>\n<p>\u524d\u7f00\u4e3a UUID\uff0c\u7528\u4e8e\u6807\u8bc6\u6a21\u5757\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"33_XML_%E6%A0%BC%E5%BC%8F%E8%AF%B4%E6%98%8E\"><\/span>3.3 XML \u683c\u5f0f\u8bf4\u660e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5bfc\u51fa\u7684 XML \u6587\u4ef6\u5305\u542b\u4ee5\u4e0b\u6838\u5fc3\u5143\u7d20\uff1a<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%E5%9F%BA%E6%9C%AC%E5%85%83%E7%B4%A0\"><\/span>\u57fa\u672c\u5143\u7d20<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>\u6240\u6709\u5143\u7d20\u90fd\u6709\u4e00\u4e2a\u5168\u5c40\u552f\u4e00 <code>id<\/code><\/strong>\uff1a\u7528\u4e8e\u5efa\u7acb\u5143\u7d20\u4e4b\u95f4\u7684\u5173\u8054\u5173\u7cfb<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"weight_%E5%85%83%E7%B4%A0\"><\/span>weight \u5143\u7d20<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong><code>weight fmt<\/code><\/strong>\uff1a\u8868\u793a\u6267\u884c\u65f6\u95f4<\/li>\n<li>\u5355\u4f4d\u901a\u5e38\u662f\u5fae\u79d2\uff08microseconds\uff09<\/li>\n<li>\u7528\u4e8e\u8ba1\u7b97\u51fd\u6570\u6216\u5806\u6808\u7684\u6267\u884c\u65f6\u95f4<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"text-address_%E5%85%83%E7%B4%A0\"><\/span>text-address \u5143\u7d20<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>\u8868\u793a\u51fd\u6570\u8c03\u7528\u94fe<\/strong>\uff1a\u4e00\u4e2a\u5730\u5740\u5bf9\u5e94\u4e00\u4e2a\u51fd\u6570\u8c03\u7528<\/li>\n<li><strong>\u6839\u51fd\u6570\u5728\u6700\u672b\u5c3e<\/strong>\uff1a\u8c03\u7528\u94fe\u7684\u987a\u5e8f\u662f\u4ece\u8c03\u7528\u8005\u5230\u88ab\u8c03\u7528\u8005<\/li>\n<li><strong>\u591a\u4e2a <code>text-address<\/code> \u7ec4\u6210\u8c03\u7528\u5806\u6808<\/strong><\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;text-address id=&quot;123&quot;&gt;0x100001234&lt;\/text-address&gt;\n&lt;text-address id=&quot;124&quot;&gt;0x100002345&lt;\/text-address&gt;\n<\/code><\/pre>\n<h4><span class=\"ez-toc-section\" id=\"backtrace_%E5%85%83%E7%B4%A0\"><\/span>backtrace \u5143\u7d20<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>\u4e00\u4e2a <code>backtrace<\/code> \u8868\u793a\u4e00\u4e2a\u8c03\u7528\u5806\u6808<\/strong><\/li>\n<li><strong>\u5305\u542b\u591a\u4e2a <code>text-address<\/code><\/strong>\uff1a\u6309\u7167\u4ece\u4e0a\u5230\u4e0b\u7684\u987a\u5e8f\u7ec4\u6210\u8c03\u7528\u5806\u6808<\/li>\n<li><strong>\u5173\u8054\u4e00\u4e2a <code>weight id<\/code><\/strong>\uff1a\u8868\u793a\u8be5\u5806\u6808\u7684\u6267\u884c\u65f6\u95f4<\/li>\n<\/ul>\n<p><strong>\u7ed3\u6784\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;backtrace id=&quot;456&quot;&gt;\n  &lt;text-address id=&quot;123&quot;\/&gt;\n  &lt;text-address id=&quot;124&quot;\/&gt;\n  &lt;weight id=&quot;789&quot;\/&gt;\n&lt;\/backtrace&gt;\n<\/code><\/pre>\n<p><strong>\u8c03\u7528\u5806\u6808\u987a\u5e8f<\/strong>\uff1a<\/p>\n<pre><code>\u51fd\u6570A (\u9876\u5c42\uff0c\u8c03\u7528\u8005)\n  \u2514\u2500 \u51fd\u6570B\n      \u2514\u2500 \u51fd\u6570C (\u5e95\u5c42\uff0c\u88ab\u8c03\u7528\u8005)\n<\/code><\/pre>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E5%9B%9B%E3%80%81%E8%A7%A3%E6%9E%90%E6%B5%81%E7%A8%8B\"><\/span>\u56db\u3001\u89e3\u6790\u6d41\u7a0b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"41_%E8%A7%A3%E6%9E%90%E6%AD%A5%E9%AA%A4\"><\/span>4.1 \u89e3\u6790\u6b65\u9aa4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trace \u6587\u4ef6 <code>id<\/code> \u662f\u552f\u4e00\u7684\uff0c<code>text-addresses<\/code> \u9876\u5c42\u5730\u5740\u5728\u6700\u540e\u9762\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u6709\u591a\u4e2a <code>backtrace id<\/code>\u3002<\/p>\n<p><strong>\u5b8c\u6574\u89e3\u6790\u6b65\u9aa4<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u83b7\u53d6 <code>id-&gt;item<\/code> \u7684\u5b57\u5178<\/strong><\/li>\n<li>\u5efa\u7acb\u6240\u6709\u5143\u7d20\u7684\u6620\u5c04\u5173\u7cfb<\/li>\n<li>\n<p>\u901a\u8fc7 <code>id<\/code> \u5feb\u901f\u67e5\u627e\u5bf9\u5e94\u7684\u5143\u7d20<\/p>\n<\/li>\n<li>\n<p><strong>\u5efa\u7acb <code>thread_id-&gt;backtrace id<\/code> \u6570\u7ec4\u7684\u6620\u5c04<\/strong><\/p>\n<\/li>\n<li>\u5c06\u6bcf\u4e2a\u7ebf\u7a0b\u7684\u6240\u6709 <code>backtrace<\/code> \u7ec4\u7ec7\u8d77\u6765<\/li>\n<li>\n<p>\u76f8\u540c <code>backtrace id<\/code> \u7684\u6743\u91cd\u76f8\u52a0\uff0c\u5f97\u5230 <code>backtrace<\/code> \u7684\u603b\u6743\u91cd<\/p>\n<\/li>\n<li>\n<p><strong>\u89e3\u6790 <code>backtrace id<\/code> \u7684\u8c03\u7528\u5730\u5740<\/strong><\/p>\n<\/li>\n<li>\u904d\u5386 <code>backtrace<\/code> \u4e2d\u7684 <code>text-address<\/code><\/li>\n<li>\n<p>\u5c06\u5730\u5740\u8f6c\u6362\u4e3a\u51fd\u6570\u540d\uff08\u4f7f\u7528\u7b26\u53f7\u5316\u5de5\u5177\uff09<\/p>\n<\/li>\n<li>\n<p><strong>\u83b7\u53d6\u7ebf\u7a0b\u6811<\/strong><\/p>\n<\/li>\n<li>\u904d\u5386\u7ebf\u7a0b\u7684\u6240\u6709 <code>backtrace<\/code><\/li>\n<li>\u6240\u6709 <code>backtrace<\/code> \u7684\u6743\u91cd\u76f8\u52a0\u5f97\u5230\u7ebf\u7a0b\u7684\u603b\u6743\u91cd<\/li>\n<li>\u5c42\u6b21\u904d\u5386 <code>backtrace<\/code> \u91cc\u9762\u7684\u8c03\u7528\u5730\u5740\uff0c\u540c\u4e00\u5c42\u76f8\u540c\u5730\u5740\u8fdb\u884c\u5408\u5e76<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"42_%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E6%98%A0%E5%B0%84\"><\/span>4.2 \u6570\u636e\u7ed3\u6784\u6620\u5c04<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u5173\u952e\u6570\u636e\u7ed3\u6784<\/strong>\uff1a<\/p>\n<pre><code class=\"language-python\"># id -&gt; item \u6620\u5c04\nid_to_item = {\n    &quot;123&quot;: text_address_element,\n    &quot;456&quot;: backtrace_element,\n    &quot;789&quot;: weight_element,\n    ...\n}\n\n# thread_id -&gt; backtrace_ids \u6620\u5c04\nthread_to_backtraces = {\n    &quot;thread_1&quot;: [&quot;backtrace_1&quot;, &quot;backtrace_2&quot;, ...],\n    &quot;thread_2&quot;: [&quot;backtrace_3&quot;, &quot;backtrace_4&quot;, ...],\n    ...\n}\n\n# backtrace_id -&gt; weight \u6620\u5c04\nbacktrace_weights = {\n    &quot;backtrace_1&quot;: 1000,  # \u5fae\u79d2\n    &quot;backtrace_2&quot;: 2000,\n    ...\n}\n<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"43_%E7%BA%BF%E7%A8%8B%E6%A0%91%E6%9E%84%E5%BB%BA\"><\/span>4.3 \u7ebf\u7a0b\u6811\u6784\u5efa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u6784\u5efa\u8fc7\u7a0b<\/strong>\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6536\u96c6\u7ebf\u7a0b\u7684\u6240\u6709 backtrace<\/strong><br \/>\n   <code>python<br \/>\n   thread_backtraces = thread_to_backtraces[thread_id]<\/code><\/p>\n<\/li>\n<li>\n<p><strong>\u8ba1\u7b97\u7ebf\u7a0b\u603b\u6743\u91cd<\/strong><br \/>\n   <code>python<br \/>\n   thread_total_weight = sum(backtrace_weights[bt_id] for bt_id in thread_backtraces)<\/code><\/p>\n<\/li>\n<li>\n<p><strong>\u6784\u5efa\u8c03\u7528\u6811<\/strong><\/p>\n<\/li>\n<li>\u904d\u5386\u6bcf\u4e2a <code>backtrace<\/code> \u7684 <code>text-address<\/code> \u5e8f\u5217<\/li>\n<li>\u4ece\u9876\u5c42\uff08\u6700\u540e\u4e00\u4e2a\u5730\u5740\uff09\u5230\u5e95\u5c42\uff08\u7b2c\u4e00\u4e2a\u5730\u5740\uff09\u6784\u5efa\u6811\u7ed3\u6784<\/li>\n<li>\u540c\u4e00\u5c42\u7684\u76f8\u540c\u5730\u5740\u8fdb\u884c\u5408\u5e76\uff0c\u6743\u91cd\u7d2f\u52a0<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<p>\u5047\u8bbe\u6709\u4e24\u4e2a backtrace\uff1a<\/p>\n<pre><code>Backtrace 1:\n  A -&gt; B -&gt; C (weight: 100)\n\nBacktrace 2:\n  A -&gt; B -&gt; D (weight: 200)\n<\/code><\/pre>\n<p>\u6784\u5efa\u7684\u8c03\u7528\u6811\uff1a<\/p>\n<pre><code>A (weight: 300)\n\u2514\u2500 B (weight: 300)\n    \u251c\u2500 C (weight: 100)\n    \u2514\u2500 D (weight: 200)\n<\/code><\/pre>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E4%BA%94%E3%80%81%E6%95%B0%E6%8D%AE%E7%BB%9F%E8%AE%A1%E6%96%B9%E6%B3%95\"><\/span>\u4e94\u3001\u6570\u636e\u7edf\u8ba1\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"51_%E5%B9%B3%E5%9D%87%E7%BB%9F%E8%AE%A1_vs_%E5%8A%A0%E6%9D%83%E5%B9%B3%E5%9D%87\"><\/span>5.1 \u5e73\u5747\u7edf\u8ba1 vs \u52a0\u6743\u5e73\u5747<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5728\u6027\u80fd\u6570\u636e\u5206\u6790\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u7edf\u8ba1\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%E5%B9%B3%E5%9D%87%E7%BB%9F%E8%AE%A1\"><\/span>\u5e73\u5747\u7edf\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>\u516c\u5f0f<\/strong>\uff1a<code>\u5e73\u5747\u503c = sum(\u6240\u6709\u503c) \/ \u6570\u91cf<\/code><\/p>\n<p><strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n&#8211; \u7b80\u5355\u76f4\u89c2<br \/>\n&#8211; \u6613\u53d7\u6781\u7aef\u503c\uff08bad case\uff09\u5f71\u54cd<br \/>\n&#8211; \u53ef\u80fd\u63a9\u76d6\u6027\u80fd\u95ee\u9898<\/p>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<p>\u5047\u8bbe 99 \u4e2a\u7528\u6237 CPU \u4f7f\u7528\u7387\u4e3a 1%\uff0c1 \u4e2a\u7528\u6237 CPU \u4f7f\u7528\u7387\u4e3a 99%\uff1a<\/p>\n<pre><code>\u5e73\u5747\u7edf\u8ba1 = (99 \u00d7 1 + 1 \u00d7 99) \/ 100 = 1.98%\n<\/code><\/pre>\n<p>\u7ed3\u679c\u770b\u8d77\u6765\u6b63\u5e38\uff0c\u4f46\u5b9e\u9645\u4e0a\u6709\u4e00\u4e2a\u7528\u6237\u51fa\u73b0\u4e86\u4e25\u91cd\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%E5%8A%A0%E6%9D%83%E5%B9%B3%E5%9D%87\"><\/span>\u52a0\u6743\u5e73\u5747<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>\u516c\u5f0f<\/strong>\uff1a<code>\u52a0\u6743\u5e73\u5747 = sum(\u503c \u00d7 \u6743\u91cd) \/ sum(\u6743\u91cd)<\/code><\/p>\n<p><strong>\u7279\u70b9<\/strong>\uff1a<br \/>\n&#8211; \u53ef\u4ee5\u6839\u636e\u91cd\u8981\u6027\u5206\u914d\u6743\u91cd<br \/>\n&#8211; \u4ecd\u7136\u53ef\u80fd\u53d7\u6781\u7aef\u503c\u5f71\u54cd<br \/>\n&#8211; \u9700\u8981\u5408\u7406\u8bbe\u7f6e\u6743\u91cd<\/p>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code>\u52a0\u6743\u5e73\u5747 = (1 \u00d7 0.99 + 99 \u00d7 0.01) = 1.98%\n<\/code><\/pre>\n<p>\u5982\u679c\u6743\u91cd\u8bbe\u7f6e\u4e0d\u5408\u7406\uff0c\u4ecd\u7136\u53ef\u80fd\u63a9\u76d6\u95ee\u9898\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"52_%E5%88%86%E4%BD%8D%E6%95%B0%E7%BB%9F%E8%AE%A1\"><\/span>5.2 \u5206\u4f4d\u6570\u7edf\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5206\u4f4d\u6570\u7edf\u8ba1\u662f\u6027\u80fd\u76d1\u63a7\u4e2d\u66f4\u53ef\u9760\u7684\u65b9\u6cd5\u3002<\/p>\n<h4><span class=\"ez-toc-section\" id=\"%E5%B8%B8%E7%94%A8%E5%88%86%E4%BD%8D%E6%95%B0\"><\/span>\u5e38\u7528\u5206\u4f4d\u6570<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>P50\uff08\u4e2d\u4f4d\u6570\uff09<\/strong>\uff1a50% \u7684\u6570\u636e\u5c0f\u4e8e\u7b49\u4e8e\u8be5\u503c<\/li>\n<li><strong>P95<\/strong>\uff1a95% \u7684\u6570\u636e\u5c0f\u4e8e\u7b49\u4e8e\u8be5\u503c<\/li>\n<li><strong>P99<\/strong>\uff1a99% \u7684\u6570\u636e\u5c0f\u4e8e\u7b49\u4e8e\u8be5\u503c<\/li>\n<li><strong>P99.9<\/strong>\uff1a99.9% \u7684\u6570\u636e\u5c0f\u4e8e\u7b49\u4e8e\u8be5\u503c<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"%E4%BC%98%E5%8A%BF\"><\/span>\u4f18\u52bf<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>\u4e0d\u53d7\u6781\u7aef\u503c\u5f71\u54cd<\/strong>\uff1aP95\u3001P99 \u7b49\u5206\u4f4d\u6570\u53ef\u4ee5\u8fc7\u6ee4\u6389\u6781\u7aef\u60c5\u51b5<\/li>\n<li><strong>\u53cd\u6620\u771f\u5b9e\u7528\u6237\u4f53\u9a8c<\/strong>\uff1a\u5173\u6ce8\u5927\u591a\u6570\u7528\u6237\u7684\u6027\u80fd\u8868\u73b0<\/li>\n<li><strong>\u4fbf\u4e8e\u8bbe\u7f6e\u544a\u8b66\u9608\u503c<\/strong>\uff1a\u53ef\u4ee5\u57fa\u4e8e\u5206\u4f4d\u6570\u8bbe\u7f6e\u5408\u7406\u7684\u544a\u8b66<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong>\uff1a<\/p>\n<pre><code>CPU \u4f7f\u7528\u7387\u5206\u5e03\uff1a\nP50: 1%\nP95: 5%\nP99: 50%\nP99.9: 99%\nMax: 99%\n<\/code><\/pre>\n<p>\u901a\u8fc7\u5206\u4f4d\u6570\u53ef\u4ee5\u770b\u51fa\uff1a<br \/>\n&#8211; \u5927\u591a\u6570\u7528\u6237\uff08P95\uff09CPU \u4f7f\u7528\u7387\u6b63\u5e38<br \/>\n&#8211; \u4f46\u4ecd\u6709\u5c11\u91cf\u7528\u6237\uff08P99\uff09\u51fa\u73b0\u6027\u80fd\u95ee\u9898<br \/>\n&#8211; \u6781\u5c11\u6570\u7528\u6237\uff08P99.9\uff09\u51fa\u73b0\u4e25\u91cd\u95ee\u9898<\/p>\n<h3><span class=\"ez-toc-section\" id=\"53_%E7%BB%9F%E8%AE%A1%E6%96%B9%E6%B3%95%E9%80%89%E6%8B%A9%E5%BB%BA%E8%AE%AE\"><\/span>5.3 \u7edf\u8ba1\u65b9\u6cd5\u9009\u62e9\u5efa\u8bae<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>\u5173\u952e\u70b9<\/strong>\uff1a\u5e73\u5747\u7edf\u8ba1\u6cd5\uff0c\u6613\u53d7 bad case \u7684\u5f71\u54cd<\/p>\n<p><strong>\u5efa\u8bae<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u5bf9\u4e8e\u6027\u80fd\u76d1\u63a7\uff0c\u5e94\u8be5\u5173\u6ce8 P95\u3001P99 \u7b49\u5206\u4f4d\u6570\u6307\u6807<\/strong><\/li>\n<li>\u4e86\u89e3\u5927\u591a\u6570\u7528\u6237\u7684\u6027\u80fd\u8868\u73b0<\/li>\n<li>\n<p>\u53ca\u65f6\u53d1\u73b0\u6027\u80fd\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p><strong>\u907f\u514d\u5355\u4e00\u5e73\u5747\u503c\u63a9\u76d6\u95ee\u9898<\/strong><\/p>\n<\/li>\n<li>\u5e73\u5747\u503c\u53ef\u80fd\u770b\u8d77\u6765\u6b63\u5e38\uff0c\u4f46\u5b9e\u9645\u5b58\u5728\u6027\u80fd\u95ee\u9898<\/li>\n<li>\n<p>\u7ed3\u5408\u5206\u4f4d\u6570\u548c\u5206\u5e03\u56fe\u5206\u6790<\/p>\n<\/li>\n<li>\n<p><strong>\u7ed3\u5408\u5206\u5e03\u56fe\u5206\u6790\u6027\u80fd\u6570\u636e<\/strong><\/p>\n<\/li>\n<li>\u76f4\u65b9\u56fe\uff1a\u4e86\u89e3\u6570\u636e\u5206\u5e03\u60c5\u51b5<\/li>\n<li>\u7bb1\u7ebf\u56fe\uff1a\u67e5\u770b\u6570\u636e\u7684\u5206\u6563\u7a0b\u5ea6\u548c\u5f02\u5e38\u503c<\/li>\n<li>\n<p>\u65f6\u95f4\u5e8f\u5217\u56fe\uff1a\u89c2\u5bdf\u6027\u80fd\u8d8b\u52bf<\/p>\n<\/li>\n<li>\n<p><strong>\u8bbe\u7f6e\u5408\u7406\u7684\u544a\u8b66\u9608\u503c<\/strong><\/p>\n<\/li>\n<li>\u57fa\u4e8e P95 \u6216 P99 \u8bbe\u7f6e\u544a\u8b66<\/li>\n<li>\n<p>\u907f\u514d\u57fa\u4e8e\u5e73\u5747\u503c\u8bbe\u7f6e\u544a\u8b66\uff08\u5bb9\u6613\u88ab\u6781\u7aef\u503c\u89e6\u53d1\uff09<\/p>\n<\/li>\n<li>\n<p><strong>\u5173\u6ce8\u5f02\u5e38\u503c<\/strong><\/p>\n<\/li>\n<li>\u867d\u7136\u5206\u4f4d\u6570\u53ef\u4ee5\u8fc7\u6ee4\u5f02\u5e38\u503c\uff0c\u4f46\u4ecd\u9700\u8981\u5173\u6ce8<\/li>\n<li>\u5206\u6790\u5f02\u5e38\u503c\u7684\u539f\u56e0\uff0c\u53ef\u80fd\u662f bug \u6216\u6027\u80fd\u95ee\u9898<\/li>\n<\/ol>\n<p><strong>\u7edf\u8ba1\u65b9\u6cd5\u5bf9\u6bd4<\/strong>\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7edf\u8ba1\u65b9\u6cd5<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<th>\u9002\u7528\u573a\u666f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u5e73\u5747\u503c<\/strong><\/td>\n<td>\u7b80\u5355\u76f4\u89c2<\/td>\n<td>\u6613\u53d7\u6781\u7aef\u503c\u5f71\u54cd<\/td>\n<td>\u6570\u636e\u5206\u5e03\u5747\u5300\u65f6<\/td>\n<\/tr>\n<tr>\n<td><strong>\u52a0\u6743\u5e73\u5747<\/strong><\/td>\n<td>\u53ef\u8bbe\u7f6e\u6743\u91cd<\/td>\n<td>\u6743\u91cd\u8bbe\u7f6e\u56f0\u96be<\/td>\n<td>\u6709\u660e\u786e\u6743\u91cd\u9700\u6c42\u65f6<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e2d\u4f4d\u6570\uff08P50\uff09<\/strong><\/td>\n<td>\u4e0d\u53d7\u6781\u7aef\u503c\u5f71\u54cd<\/td>\n<td>\u53ef\u80fd\u5ffd\u7565\u95ee\u9898<\/td>\n<td>\u4e86\u89e3\u5178\u578b\u60c5\u51b5<\/td>\n<\/tr>\n<tr>\n<td><strong>P95\/P99<\/strong><\/td>\n<td>\u53cd\u6620\u771f\u5b9e\u4f53\u9a8c<\/td>\n<td>\u8ba1\u7b97\u7a0d\u590d\u6742<\/td>\n<td><strong>\u6027\u80fd\u76d1\u63a7\u63a8\u8350<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u6700\u5927\u503c<\/strong><\/td>\n<td>\u53d1\u73b0\u6700\u574f\u60c5\u51b5<\/td>\n<td>\u53ef\u80fd\u8fc7\u4e8e\u654f\u611f<\/td>\n<td>\u5173\u6ce8\u6781\u7aef\u60c5\u51b5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"%E6%80%BB%E7%BB%93\"><\/span>\u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u89e3\u6790 Instruments Trace \u6587\u4ef6\u662f iOS \u6027\u80fd\u5206\u6790\u7684\u91cd\u8981\u6280\u80fd\u3002\u901a\u8fc7\u7406\u89e3 Trace \u6587\u4ef6\u7684\u7ed3\u6784\u3001\u638c\u63e1\u7b26\u53f7\u5316\u65b9\u6cd5\u3001\u6b63\u786e\u89e3\u6790\u6570\u636e\u5e76\u4f7f\u7528\u5408\u9002\u7684\u7edf\u8ba1\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6df1\u5165\u5206\u6790\u5e94\u7528\u6027\u80fd\uff0c\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\u3002<\/p>\n<p><strong>\u5173\u952e\u8981\u70b9<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u7406\u89e3\u57fa\u672c\u6982\u5ff5<\/strong>\uff1a<code>all_weight<\/code> \u548c <code>self_weight<\/code> \u7684\u533a\u522b\u548c\u7528\u9014<\/li>\n<li><strong>\u638c\u63e1\u7b26\u53f7\u5316\u6d41\u7a0b<\/strong>\uff1a\u4ece UUID \u83b7\u53d6\u5230\u5730\u5740\u8f6c\u6362\u7684\u5b8c\u6574\u6d41\u7a0b<\/li>\n<li><strong>\u4e86\u89e3\u6587\u4ef6\u683c\u5f0f<\/strong>\uff1aTrace \u6587\u4ef6\u548c XML \u683c\u5f0f\u7684\u7ed3\u6784<\/li>\n<li><strong>\u6b63\u786e\u89e3\u6790\u6570\u636e<\/strong>\uff1a\u6309\u7167\u6b65\u9aa4\u89e3\u6790\u5e76\u6784\u5efa\u8c03\u7528\u6811<\/li>\n<li><strong>\u9009\u62e9\u5408\u9002\u7684\u7edf\u8ba1\u65b9\u6cd5<\/strong>\uff1a\u4f7f\u7528\u5206\u4f4d\u6570\u800c\u975e\u5e73\u5747\u503c\u8fdb\u884c\u6027\u80fd\u76d1\u63a7<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>iOS Trace \u6570\u636e\u89e3\u6790 \u76ee\u5f55 iOS Trace \u6570\u636e\u89e3\u6790 \u76ee\u5f55 \u6982\u89c8 \u4e00\u3001\u57fa\u672c\u6982\u5ff5 1.1 all_w [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"blocksy_meta":[],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":""},"post_excerpt_stackable":"<p>\u76ee\u5f55 Toggle iOS Trace \u6570\u636e\u89e3\u6790\u76ee\u5f55\u6982\u89c8\u4e00\u3001\u57fa\u672c\u6982\u5ff51.1 all_weight \u548c self_weight1.2 Trace \u6587\u4ef6\u7ed3\u6784\u4e8c\u3001\u7b26\u53f7\u53162.1 \u7b26\u53f7\u5316\u6d41\u7a0b2.2 \u67e5\u770b\u6a21\u5757 U&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/p.ixriver.com\/?cat=36\" rel=\"category\">\u6027\u80fd\u4f18\u5316<\/a>","author_info":{"name":"admin","url":"https:\/\/p.ixriver.com\/?author=1"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/p.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/906"}],"collection":[{"href":"https:\/\/p.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/p.ixriver.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/p.ixriver.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/p.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=906"}],"version-history":[{"count":0,"href":"https:\/\/p.ixriver.com\/index.php?rest_route=\/wp\/v2\/posts\/906\/revisions"}],"wp:attachment":[{"href":"https:\/\/p.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/p.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/p.ixriver.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}