1<!DOCTYPE html> 2<html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 5 <title>quickstart_page_fault</title> 6 7 <meta name="viewport" content="width=device-width, initial-scale=1.0" /> 8 9 <style> 10 code[class*='smartperf-'], 11 pre[class*='smartperf-'] { 12 color: #333333; 13 background: none; 14 font-family: Helvetica; 15 line-height: 1.6; 16 text-align: left; 17 white-space: pre; 18 -moz-tab-size: 9; 19 -o-tab-size: 9; 20 tab-size: 8; 21 -webkit-hyphens: none; 22 -moz-hyphens: none; 23 -ms-hyphens: none; 24 hyphens: none; 25 } 26 27 /* Code blocks */ 28 pre[class*='smartperf-'] { 29 padding: 0.9em; 30 overflow: auto; 31 border-radius: 2px; 32 background: #f5f5f4; 33 } 34 35 /* Inline code */ 36 :not(pre) > code[class*='smartperf-'] { 37 white-space: normal; 38 background: #fcf8f8; 39 padding: 1px 0.2em; 40 border-radius: 1px 0.3em; 41 } 42 43 .tk.comment, 44 .tk.blockquote { 45 color: #8c918c; 46 } 47 48 .tk.cdata { 49 color: #183898; 50 } 51 52 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and (max-width: 450px) { 774 html body[for='html-export']:not([dpm])[hsst] .smartperf-preview { 775 width: 99%; 776 } 777 } 778 779 html body[for='html-export']:not([dpm]):not([hsst]) .md-sidebar-toc { 780 display: none; 781 } 782 </style> 783 </head> 784 <body for="html-export" id="body" style="margin:0"> 785 <div class="smartperf smartperf-preview" style="min-height: 99vh;"> 786 <h1 class="mume-header fontColor">页内存的抓取和展示说明</h1> 787 788 <p class="fontColor">页内存从page层面更深层次剖析应用程序的虚拟内存操作。</p> 789 <h2 class="mume-header fontColor">页内存的抓取</h2> 790 791 <h3 class="mume-header fontColor" id="header-index-1">页内存抓取配置参数</h3> 792 793 <p class="fontColor"> 794 <img src="../figures/EBPF/ebpfsetting.jpg" alt="GitHub Logo" /> 795 <br /> 796 配置项说明: 797 </p> 798 <ul class="fontColor"> 799 <li> 800 <pre class="smartperf-text fontColor light"> 801Start Page Fault Record:配置项的总开关。 802</pre 803 > 804 </li> 805 <li> 806 <pre class="smartperf-text fontColor light"> 807Process:默认配置的是整个系统的,也可选择单进程抓取。 808</pre 809 > 810 </li> 811 <li> 812 <pre class="smartperf-text fontColor light"> 813Max Unwind Level:配置抓取调用栈的最大深度。 814</pre 815 > 816 </li> 817 </ul> 818 <p class="fontColor"> 819 再点击Record setting,在output file path输入文件名hiprofiler_data_ebpf.htrace,拖动滚动条设置buffer 820 size大小是64MB,抓取时长是50s。 821 <br /> 822 <img src="../figures/EBPF/ebpfrecord.jpg" alt="GitHub Logo" /> 823 <br /> 824 点击Trace command,就会根据上面的配置生成抓取命令,点击Record抓取,抓取过程中会显示抓取时长。 825 <br /> 826 <img src="../figures/EBPF/ebpfexcuting.jpg" alt="GitHub Logo" /> 827 </p> 828 <h3 class="mume-header fontColor" id="header-index-2">页内存展示说明</h3> 829 830 <p class="fontColor"> 831 抓取结束后页内存的trace会自动加载展示。 832 <br /> 833 <img src="../figures/EBPF/ebpfsummary.jpg" alt="GitHub Logo" /> 834 </p> 835 <p class="fontColor">界面布局介绍:页内存整体界面布局分为3个部分:</p> 836 <ul class="fontColor"> 837 <li> 838 <pre class="smartperf-text fontColor light"> 839红色区域:泳道图。 840</pre 841 > 842 </li> 843 <li> 844 <pre class="smartperf-text fontColor light"> 845绿色区域:详细信息。 846</pre 847 > 848 </li> 849 <li> 850 <pre class="smartperf-text fontColor light"> 851黄色区域:辅助信息(Call Stack)。 852</pre 853 > 854 </li> 855 </ul> 856 <h3 class="mume-header fontColor" id="header-index-3">页内存泳道图展示</h3> 857 858 <p class="fontColor"> 859 页内存泳道图展示事件(Operation)发生的次数,每个事件都有持续时间,鼠标悬浮以10ms为区间进行次数统计。 860 <br /> 861 <img src="../figures/EBPF/EBPFchart.jpg" alt="GitHub Logo" /> 862 <br /> 863 按住w键放大界面,悬浮框会显示当前时刻的事件发生次数。 864 <br /> 865 <img src="../figures/EBPF/EBPFcount.jpg" alt="GitHub Logo" /> 866 </p> 867 <h3 class="mume-header fontColor" id="header-index-4">页内存泳道图的框选功能</h3> 868 869 <p class="fontColor"> 870 可以对泳道图进行框选,框选后在最下方的弹出层中会展示框选数据的统计表格,总共有三个tab页。 871 <br /> 872 Page Fault Statistics的Tab页如图: 873 <br /> 874 <img src="../figures/EBPF/vmstatistics.jpg" alt="GitHub Logo" /> 875 </p> 876 <ul class="fontColor"> 877 <li> 878 <pre class="smartperf-text fontColor light"> 879Operation/Process/Thread: 按照Operation为基点显示。 880</pre 881 > 882 </li> 883 <li> 884 <pre class="smartperf-text fontColor light"> 885Count: 事件数量。 886</pre 887 > 888 </li> 889 <li> 890 <pre class="smartperf-text fontColor light"> 891Duration:总时长。 892</pre 893 > 894 </li> 895 <li> 896 <pre class="smartperf-text fontColor light"> 897Min Duration:最小时长。 898</pre 899 > 900 </li> 901 <li> 902 <pre class="smartperf-text fontColor light"> 903Avg Duration: 平均时长。 904</pre 905 > 906 </li> 907 <li> 908 <pre class="smartperf-text fontColor light"> 909Max Duration:最大时长。 910</pre 911 > 912 </li> 913 </ul> 914 <p class="fontColor"> 915 点击下方的Statistics by Thread,可以切换到按照Thread为基点显示数据。 916 <br /> 917 <img src="../figures/EBPF/ebpf_bythread.jpg" alt="GitHub Logo" /> 918 <br /> 919 Analysis的Tab页如图: 920 <br /> 921 <img src="../figures/EBPF/Analysis.jpg" alt="GitHub Logo" /> 922 <br /> 923 Page Fault Calltree的Tab页如图: 924 <br /> 925 <img src="../figures/EBPF/VMCalltree.jpg" alt="GitHub Logo" /> 926 </p> 927 <ul class="fontColor"> 928 <li> 929 <pre class="smartperf-text fontColor light"> 930Call Stack:为经过符号解析后的Callstack,并且给出动态链接库或者进程名的信息。 931</pre 932 > 933 </li> 934 <li> 935 <pre class="smartperf-text fontColor light"> 936Local:为该调用方法自身占用的CPU时间。 937</pre 938 > 939 </li> 940 <li> 941 <pre class="smartperf-text fontColor light"> 942Weight:为该调用方法占用的CPU时间。 943</pre 944 > 945 </li> 946 <li> 947 <pre class="smartperf-text fontColor light"> 948%:为该调用方法占用的CPU时间占比。 949</pre 950 > 951 </li> 952 </ul> 953 <p class="fontColor"> 954 Page Fault Events的Tab页如图: 955 <br /> 956 <img src="../figures/EBPF/VMEvents.jpg" alt="GitHub Logo" /> 957 </p> 958 <ul class="fontColor"> 959 <li> 960 <pre class="smartperf-text fontColor light"> 961Start Time:起始时间。 962</pre 963 > 964 </li> 965 <li> 966 <pre class="smartperf-text fontColor light"> 967Duration:时长。 968</pre 969 > 970 </li> 971 <li> 972 <pre class="smartperf-text fontColor light"> 973Thread:线程名。 974</pre 975 > 976 </li> 977 <li> 978 <pre class="smartperf-text fontColor light"> 979Operation:事件类型。 980</pre 981 > 982 </li> 983 <li> 984 <pre class="smartperf-text fontColor light"> 985Address:内存地址。 986</pre 987 > 988 </li> 989 <li> 990 <pre class="smartperf-text fontColor light"> 991Size:内存大小。 992</pre 993 > 994 </li> 995 </ul> 996 <h3 class="mume-header fontColor" id="header-index-5">页内存支持多种Options展示风格</h3> 997 998 <p class="fontColor"> 999 点击Page Fault Calltree的Tab页底部的Options,会有四个CheckBox复选框。 1000 <br /> 1001 <img src="../figures/EBPF/vmOptions.jpg" alt="GitHub Logo" /> 1002 </p> 1003 <ul class="fontColor"> 1004 <li> 1005 <pre class="smartperf-text fontColor light"> 1006Invert:反向输出调用树。 1007</pre 1008 > 1009 </li> 1010 <li> 1011 <pre class="smartperf-text fontColor light"> 1012Hide System so:隐藏系统库文件。 1013</pre 1014 > 1015 </li> 1016 <li> 1017 <pre class="smartperf-text fontColor light"> 1018Hide Event:隐藏事件。 1019</pre> 1020 </li> 1021 <li> 1022 <pre class="smartperf-text fontColor light"> 1023Hide Thread:隐藏线程。 1024</pre> 1025 </li> 1026 </ul> 1027 <h3 class="mume-header fontColor" id="header-index-6">页内存支持过滤调用栈调用次数的展示风格</h3> 1028 1029 <p class="fontColor"> 1030 点击Page Fault Calltree的Tab页底部的Sample Count 1031 Filter,可以填上区间值。过滤出符合该区间值调用次数的调用栈信息。 1032 <br /> 1033 <img src="../figures/EBPF/vmcounter.jpg" alt="GitHub Logo" /> 1034 </p> 1035 <h3 class="mume-header fontColor" id="header-index-7">页内存功能的调用栈Group展示-数据分析支持剪裁功能</h3> 1036 1037 <p class="fontColor"><img src="../figures/EBPF/vmdatamining.jpg" alt="GitHub Logo" /></p> 1038 <ul class="fontColor"> 1039 <li> 1040 裁剪Callstack,点击Callstack上一个节点符号,再点击底部Symbol 1041 Filter按钮,则该符号自动被裁剪掉,同时将该节点往下所有的Callstack内容裁剪掉。 1042 </li> 1043 <li>裁剪Library,点击Library上一个节点符号,再点击底部Library Filter按钮,则该符号自动被裁剪掉,同时将该节点往下所有的Callstack内容裁剪掉。</li> 1044 <li>先选中要恢复的内容,再点击Reset按钮,将恢复选中的裁剪内容。</li> 1045 </ul> 1046 <h3 class="mume-header fontColor" id="header-index-8">页内存功能的调用栈Group展示支持按条件过滤</h3> 1047 1048 <p class="fontColor"> 1049 在Input Filter输入关键字,会显示出带有该关键字的展示信息。 1050 <br /> 1051 <img src="../figures/EBPF/vminputfilter.jpg" alt="GitHub Logo" /> 1052 </p> 1053 <h3 class="mume-header fontColor" id="header-index-9">页内存辅助信息区展示调用栈</h3> 1054 1055 <p class="fontColor"> 1056 当在详细信息区选择一个符号时,将展示与该符号相关的完整的调用栈。如下图的Heaviest Stack Trace: 1057 <br /> 1058 <img src="../figures/EBPF/vmheaviesttrace.jpg" alt="GitHub Logo" /> 1059 </p> 1060 <h3 class="mume-header fontColor" id="header-index-10">页内存的事件类型的过滤</h3> 1061 1062 <p class="fontColor"> 1063 通过选择类型事件进行过滤。 1064 <br /> 1065 <img src="../figures/EBPF/VMfilter.jpg" alt="GitHub Logo" /> 1066 </p> 1067 <h3 class="mume-header fontColor" id="header-index-11">页内存的火焰图功能</h3> 1068 1069 <p class="fontColor"> 1070 点击Page Fault Calltree左下角的柱状图的图标,会切换到火焰图页面。 1071 <br /> 1072 <img src="../figures/EBPF/vmflame.jpg" alt="GitHub Logo" /> 1073 <br /> 1074 进入到火焰图页面,火焰图的展示跟Callinfo的tab页的调用栈显示一致,鼠标放到色块上,悬浮框可以显示调用栈名称、所属Lib库、函数地址、耗时及其占比。 1075 <br /> 1076 <img src="../figures/EBPF/vmflameshow.jpg" alt="GitHub Logo" /> 1077 <br /> 1078 鼠标左键火焰图,会进入下一级界面,左键上级则返回上一级界面。 1079 <br /> 1080 <img src="../figures/EBPF/vmflamelevel.jpg" alt="GitHub Logo" /> 1081 </p> 1082 </div> 1083 1084 <script> 1085 window.onload = () => { 1086 let isDark = getURLParameter('dark'); 1087 let targetId = getURLParameter('targetId'); 1088 let isBack = getURLParameter('isBack'); 1089 if (isDark === 'true') { 1090 document.getElementById('body').setAttribute('style', 'background-color:#272C34;'); 1091 let header = document.getElementsByClassName('fontColor'); 1092 for (let i = 0; i < header.length; i++) { 1093 header[i].style.color = '#fff'; 1094 } 1095 let lightBackGround = document.getElementsByClassName('light'); 1096 for (let i = 0; i < lightBackGround.length; i++) { 1097 lightBackGround[i].style.backgroundColor = '#32373F'; 1098 } 1099 } 1100 function getURLParameter(name) { 1101 return (new URL(document.location)).searchParams.get(name); 1102 } 1103 1104 if ( targetId !== null ) { 1105 let targetElement = document.getElementById(targetId); 1106 targetElement.scrollIntoView({ behavior: 'smooth' 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