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body[for='html-export']:not([dpm])[hsst] .smartperf-preview { 772 padding: 1.9em; 773 } 774 } 775 776 @media screen and (max-width: 450px) { 777 html body[for='html-export']:not([dpm])[hsst] .smartperf-preview { 778 width: 99%; 779 } 780 } 781 782 html body[for='html-export']:not([dpm]):not([hsst]) .smartperf-preview { 783 left: 50%; 784 transform: translateX(-50%); 785 } 786 787 html body[for='html-export']:not([dpm]):not([hsst]) .md-sidebar-toc { 788 display: none; 789 } 790 </style> 791 </head> 792 <body for="html-export" id="body"> 793 <div class="smartperf smartperf-preview"> 794 <h1 class="mume-header fontColor">FileSystem的抓取和展示说明</h1> 795 796 <p class="fontColor">FileSystem分析文件系统的信息和活动,比如读和写操作等。</p> 797 <h2 class="mume-header fontColor">FileSystem的抓取</h2> 798 799 <h3 class="mume-header fontColor">FileSystem抓取配置参数</h3> 800 801 <p class="fontColor"> 802 <img src="../figures/FileSystem/filesystemsetting.jpg" alt="GitHub Logo" /><br /> 803 配置项说明: 804 </p> 805 <ul class="fontColor"> 806 <li> 807 <pre class="smartperf-text fontColor light"> 808Start FileSystem Record:配置项的总开关。 809</pre 810 > 811 </li> 812 <li> 813 <pre class="smartperf-text fontColor light"> 814Process:默认配置的是整个系统的,也可选择单进程抓取。 815</pre 816 > 817 </li> 818 <li> 819 <pre class="smartperf-text fontColor light"> 820Max Unwind Level:配置抓取调用栈的最大深度。 821</pre 822 > 823 </li> 824 </ul> 825 <p class="fontColor"> 826 再点击Record setting,在output file path输入文件名hiprofiler_data_filesystem.htrace,拖动滚动条设置buffer 827 size大小是64M,抓取时长是50s。<br /> 828 <img src="../figures/FileSystem/filesystemrecord.jpg" alt="GitHub Logo" /><br /> 829 点击Trace command,就会根据上面的配置生成抓取命令,点击复制按钮,会将命令行复制。<br /> 830 <img src="../figures/FileSystem/FileSystemcommand.jpg" alt="GitHub Logo" /><br /> 831 输入hdc_std shell,进入设备,执行命令。<br /> 832 <img src="../figures/FileSystem/FileSystemexcutecommand.jpg" alt="GitHub Logo" /><br /> 833 执行完成后,进入指定目录查看,在/data/local/tmp下就会生成trace文件。<br /> 834 <img src="../figures/FileSystem/FileSystemfile.jpg" alt="GitHub Logo" /> 835 </p> 836 <h3 class="mume-header fontColor">FileSystem展示说明</h3> 837 838 <p class="fontColor"> 839 将抓取的trace文件导入smartperf界面查看。<br /> 840 <img src="../figures/FileSystem/FileSystemsummary.jpg" alt="GitHub Logo" /> 841 </p> 842 <p class="fontColor">界面布局介绍:FileSystem整体界面布局分为3个部分:</p> 843 <ul class="fontColor"> 844 <li> 845 <pre class="smartperf-text fontColor light"> 846红色区域:泳道图。 847</pre 848 > 849 </li> 850 <li> 851 <pre class="smartperf-text fontColor light"> 852绿色区域:详细信息。 853</pre 854 > 855 </li> 856 <li> 857 <pre class="smartperf-text fontColor light"> 858黄色区域:辅助信息(Callstack)。 859</pre 860 > 861 </li> 862 </ul> 863 <h3 class="mume-header fontColor">FileSystem泳道图展示</h3> 864 865 <p class="fontColor"> 866 FileSystem泳道图按照读操作和写操作展示,鼠标移动都泳道图上,悬浮框会以10ms为周期展示读,写类型系统调用的次数。<br /> 867 <img src="../figures/FileSystem/FileSystemchart.jpg" alt="GitHub Logo" /><br /> 868 按住w键放大界面,悬浮框会显示当前时刻的文件读写次数。<br /> 869 <img src="../figures/FileSystem/FileSystemcount.jpg" alt="GitHub Logo" /> 870 </p> 871 <h3 class="mume-header fontColor">FileSystem泳道图的框选功能</h3> 872 873 <p class="fontColor"> 874 可以对读写操作泳道图进行框选,框选后在最下方的弹出层中会展示框选数据的统计表格,总共有五个tab页。<br /> 875 FileSystem statistics的Tab页如图:<br /> 876 <img src="../figures/FileSystem/FileSystemstatistics.jpg" alt="GitHub Logo" /> 877 </p> 878 <ul class="fontColor"> 879 <li> 880 <pre class="smartperf-text fontColor light"> 881Syscall/Process: 按照数据类型,进程分类显示。 882</pre 883 > 884 </li> 885 <li> 886 <pre class="smartperf-text fontColor light"> 887Count: 系统调用的数量。 888</pre 889 > 890 </li> 891 <li> 892 <pre class="smartperf-text fontColor light"> 893Logical Writes:写数据统计。 894</pre 895 > 896 </li> 897 <li> 898 <pre class="smartperf-text fontColor light"> 899Logical Reads:读数据统计。 900</pre 901 > 902 </li> 903 <li> 904 <pre class="smartperf-text fontColor light"> 905Other Filesystem Bytes:其他数据量。 906</pre 907 > 908 </li> 909 <li> 910 <pre class="smartperf-text fontColor light"> 911Duration:总时长。 912</pre 913 > 914 </li> 915 <li> 916 <pre class="smartperf-text fontColor light"> 917Min Duration:最小时长。 918</pre 919 > 920 </li> 921 <li> 922 <pre class="smartperf-text fontColor light"> 923Avg Duration: 平均时长。 924</pre 925 > 926 </li> 927 <li> 928 <pre class="smartperf-text fontColor light"> 929Max Duration:最大时长。 930</pre 931 > 932 </li> 933 </ul> 934 <p class="fontColor"> 935 FileSystem Calltree的Tab页如图:<br /> 936 <img src="../figures/FileSystem/FileSystemCalltree.jpg" alt="GitHub Logo" /> 937 </p> 938 <ul class="fontColor"> 939 <li> 940 <pre class="smartperf-text fontColor light"> 941Call 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。 942</pre 943 > 944 </li> 945 <li> 946 <pre class="smartperf-text fontColor light"> 947Local:为该调用方法自身占用的CPU时间。 948</pre 949 > 950 </li> 951 <li> 952 <pre class="smartperf-text fontColor light"> 953Weight:调用方法的执行占比。 954</pre 955 > 956 </li> 957 </ul> 958 <p class="fontColor"> 959 FileSystem Events的Tab页如图:<br /> 960 <img src="../figures/FileSystem/FileSystemevents.jpg" alt="GitHub Logo" /> 961 </p> 962 <ul class="fontColor"> 963 <li> 964 <pre class="smartperf-text fontColor light"> 965Start: 起始时间。 966</pre 967 > 968 </li> 969 <li> 970 <pre class="smartperf-text fontColor light"> 971Duration:时长。 972</pre 973 > 974 </li> 975 <li> 976 <pre class="smartperf-text fontColor light"> 977Process:进程名。 978</pre 979 > 980 </li> 981 <li> 982 <pre class="smartperf-text fontColor light"> 983Thread:线程名。 984</pre 985 > 986 </li> 987 <li> 988 <pre class="smartperf-text fontColor light"> 989Firsr Argument:系统调用的第一个参数。 990</pre 991 > 992 </li> 993 <li> 994 <pre class="smartperf-text fontColor light"> 995Second Argument:系统调用的第二个参数。 996</pre 997 > 998 </li> 999 <li> 1000 <pre class="smartperf-text fontColor light"> 1001Third Argument:系统调用的第三个参数。 1002</pre 1003 > 1004 </li> 1005 <li> 1006 <pre class="smartperf-text fontColor light"> 1007Fourth Argument:系统调用的第四个参数。 1008</pre 1009 > 1010 </li> 1011 <li> 1012 <pre class="smartperf-text fontColor light"> 1013Retrun:系统调用的返回值。 1014</pre 1015 > 1016 </li> 1017 <li> 1018 <pre class="smartperf-text fontColor light"> 1019Error:错误码。 1020</pre 1021 > 1022 </li> 1023 <li> 1024 <pre class="smartperf-text fontColor light"> 1025Backtrace:调用栈顶部函数,并显示调用栈深度。 1026</pre 1027 > 1028 </li> 1029 </ul> 1030 <p class="fontColor"> 1031 File Descriptor History的Tab页如图:<br /> 1032 <img src="../figures/FileSystem/FileSystemhistory.jpg" alt="GitHub Logo" /> 1033 </p> 1034 <ul class="fontColor"> 1035 <li> 1036 <pre class="smartperf-text fontColor light"> 1037Start: 起始时间。 1038</pre 1039 > 1040 </li> 1041 <li> 1042 <pre class="smartperf-text fontColor light"> 1043Duration:时长。 1044</pre 1045 > 1046 </li> 1047 <li> 1048 <pre class="smartperf-text fontColor light"> 1049Process:进程名。 1050</pre 1051 > 1052 </li> 1053 <li> 1054 <pre class="smartperf-text fontColor light"> 1055Type:操作类型。 1056</pre 1057 > 1058 </li> 1059 <li> 1060 <pre class="smartperf-text fontColor light"> 1061File Descriptor:fd。 1062</pre 1063 > 1064 </li> 1065 <li> 1066 <pre class="smartperf-text fontColor light"> 1067Backtrace:调用栈顶部函数,并显示调用栈深度。 1068</pre 1069 > 1070 </li> 1071 </ul> 1072 <p class="fontColor"> 1073 File Descriptor Time Slice的Tab页如图:<br /> 1074 <img src="../figures/FileSystem/FileSystemtimeslice.jpg" alt="GitHub Logo" /> 1075 </p> 1076 <ul class="fontColor"> 1077 <li> 1078 <pre class="smartperf-text fontColor light"> 1079Open Time: 打开的起始时间。 1080</pre 1081 > 1082 </li> 1083 <li> 1084 <pre class="smartperf-text fontColor light"> 1085Open Duration:打开的时长。 1086</pre 1087 > 1088 </li> 1089 <li> 1090 <pre class="smartperf-text fontColor light"> 1091Process:进程名。 1092</pre 1093 > 1094 </li> 1095 <li> 1096 <pre class="smartperf-text fontColor light"> 1097File Descriptor:fd。 1098</pre 1099 > 1100 </li> 1101 <li> 1102 <pre class="smartperf-text fontColor light"> 1103Backtrace:调用栈顶部函数,并显示调用栈深度。 1104</pre 1105 > 1106 </li> 1107 </ul> 1108 <h3 class="mume-header fontColor">FileSystem支持多种Options展示风格</h3> 1109 1110 <p class="fontColor"> 1111 点击FileSystem Calltree的Tab页底部的Options,会有两个CheckBox复选框。<br /> 1112 <img src="../figures/FileSystem/FileSystemOptions.jpg" alt="GitHub Logo" /> 1113 </p> 1114 <ul class="fontColor"> 1115 <li> 1116 <pre class="smartperf-text fontColor light"> 1117Invert:反向输出调用树。 1118</pre 1119 > 1120 </li> 1121 <li> 1122 <pre class="smartperf-text fontColor light"> 1123Hide System so:隐藏系统库文件。 1124</pre 1125 > 1126 </li> 1127 </ul> 1128 <h3 class="mume-header fontColor">FileSystem支持过滤调用栈调用次数的展示风格</h3> 1129 1130 <p class="fontColor"> 1131 点击FileSystem Calltree的Tab页底部的Sample Counter 1132 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。<br /> 1133 <img src="../figures/FileSystem/FileSystemsamplecounter.jpg" alt="GitHub Logo" /> 1134 </p> 1135 <h3 class="mume-header fontColor">FileSystem功能的调用栈Group展示-数据分析支持剪裁功能</h3> 1136 1137 <p class="fontColor"><img src="../figures/FileSystem/FileSystemdatamining.jpg" alt="GitHub Logo" /></p> 1138 <ul class="fontColor"> 1139 <li> 1140 <p class="fontColor"> 1141 裁剪Callstack,点击Callstack上一个节点符号,再点击底部Symbol 1142 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。 1143 </p> 1144 </li> 1145 <li> 1146 <p class="fontColor">裁剪Library,点击Library Filter按钮,则该库文件符号下所有的子节点也被裁剪。</p> 1147 </li> 1148 <li> 1149 <p class="fontColor">点击Reset按钮,将恢复选中的裁剪内容。</p> 1150 </li> 1151 </ul> 1152 <h3 class="mume-header fontColor">FileSystem功能的调用栈Group展示支持按条件过滤</h3> 1153 1154 <p class="fontColor"> 1155 在Input Filter输入关键字,会显示出带有该关键字的展示信息。<br /> 1156 <img src="../figures/FileSystem/FileSysteminputfilter.jpg" alt="GitHub Logo" /> 1157 </p> 1158 <h3 class="mume-header fontColor">FileSystem辅助信息区展示调用栈</h3> 1159 1160 <p class="fontColor"> 1161 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:<br /> 1162 <img src="../figures/FileSystem/FileSystemheaviesttrace.jpg" alt="GitHub Logo" /> 1163 </p> 1164 <h3 class="mume-header fontColor">FileSystem的事件类型的过滤</h3> 1165 1166 <p class="fontColor"> 1167 通过选择可以过滤是Open类型,还是Close类型事件。<br /> 1168 <img src="../figures/FileSystem/filesystemfilter.jpg" alt="GitHub Logo" /> 1169 </p> 1170 <h3 class="mume-header fontColor">FileSystem的火焰图功能</h3> 1171 1172 <p class="fontColor"> 1173 点击FileSystem Calltre左下角的柱状图的图标,会切换到火焰图页面。<br /> 1174 <img src="../figures/FileSystem/FileSystemflame.jpg" alt="GitHub Logo" /><br /> 1175 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和Duration时长。<br /> 1176 <img src="../figures/FileSystem/FileSystemflameshow.jpg" alt="GitHub Logo" /><br /> 1177 鼠标左键火焰图,会进入下一级界面,右键回到上一级。<br /> 1178 <img src="../figures/FileSystem/FileSystemflamelevel.jpg" alt="GitHub Logo" /> 1179 </p> 1180 </div> 1181 1182 <script> 1183 window.onload = () => { 1184 let isDark = window.location.search; 1185 if (isDark.indexOf('?') != -1) { 1186 isDark = isDark.substr(1, isDark.length - 1); 1187 } 1188 if (isDark == 'true') { 1189 document.getElementById('body').setAttribute('style', 'background-color:#272C34;'); 1190 let header = document.getElementsByClassName('fontColor'); 1191 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