1<!DOCTYPE html>
2<html>
3  <head>
4    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
5    <title>quickstart_Hiperf</title>
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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">Hiperf的抓取和展示说明</h1>
787
788      <p class="fontColor">Hiperf工具是对系统性能数据进行采样记录,并将采样数据保存为文件,进行读取,展示分析。</p>
789      <h2 class="mume-header fontColor">Hiperf的抓取</h2>
790
791      <h3 class="mume-header fontColor" id="header-index-1">Hiperf抓取配置参数</h3>
792
793      <p class="fontColor">
794        <img src="../figures/perf/perfsetting.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 Hiperf Sampling:配置项的总开关。
802</pre
803          >
804        </li>
805        <li>
806          <pre class="smartperf-text fontColor light">
807Process:离线模式下配置的是整个系统的。
808</pre
809          >
810        </li>
811        <li>
812          <pre class="smartperf-text fontColor light">
813Frequency:配置抓取的频率。
814</pre
815          >
816        </li>
817        <li>
818          <pre class="smartperf-text fontColor light">
819Call Stack:配置抓取的堆栈类型。
820</pre
821          >
822        </li>
823        <li>
824          <pre class="smartperf-text fontColor light">
825Advance Options:更多的抓取配置项。
826</pre
827          >
828        </li>
829      </ul>
830      <p class="fontColor">
831        再点击Record setting,在output file path输入文件名hiprofiler_data_perf.htrace,拖动滚动条设置buffer
832        size大小是64MB,抓取时长是50s。
833        <br />
834        <img src="../figures/perf/perfset.jpg" alt="GitHub Logo" />
835        <br />
836        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。
837        <br />
838        <img src="../figures/perf/perfcommand.jpg" alt="GitHub Logo" />
839        <br />
840        输入hdc shell,进入设备,执行命令。
841        <br />
842        <img src="../figures/perf/perfexcutecommand.jpg" alt="GitHub Logo" />
843        <br />
844        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。
845        <br />
846        <img src="../figures/perf/perffile.jpg" alt="GitHub Logo" />
847      </p>
848      <h3 class="mume-header fontColor" id="header-index-2">Hiperf展示说明</h3>
849
850      <p class="fontColor">
851        将抓取的trace文件导入smartperf界面查看。
852        <br />
853        <img src="../figures/perf/summary.jpg" alt="GitHub Logo" />
854      </p>
855      <p class="fontColor">界面布局介绍:Perf整体界面布局分为3个部分:</p>
856      <ul class="fontColor">
857        <li>
858          <pre class="smartperf-text fontColor light">
859红色区域:泳道图。
860</pre
861          >
862        </li>
863        <li>
864          <pre class="smartperf-text fontColor light">
865绿色区域:详细信息(Perf Profile和Sample List)。
866</pre
867          >
868        </li>
869        <li>
870          <pre class="smartperf-text fontColor light">
871黄色区域:辅助信息(Call Stack)。
872</pre
873          >
874        </li>
875      </ul>
876      <h3 class="mume-header fontColor" id="header-index-3">Hiperf泳道图展示</h3>
877
878      <p class="fontColor">
879        Hiperf泳道图展示按照CPU使用量,进程和线程展示,鼠标移动到泳道图上,悬浮框会显示CPU的使用量。
880        <br />
881        <img src="../figures/perf/chart.jpg" alt="GitHub Logo" />
882        <br />
883        按住w键放大界面,泳道图会出现P的标志,鼠标移动到P图标上,悬浮框会显示每个callstack和调用的深度如下图。
884        <br />
885        <img src="../figures/perf/callstack.jpg" alt="GitHub Logo" />
886        <br />
887        Hiperf泳道图上浅色表示无效调用栈的采样点,抓取时由于设备上的对应的so无符号信息,函数跟地址都无法获取到,固该采样点在tab页中不做显示。
888        <br />
889        <img src="../figures/perf/perf_nocallstack.jpg" alt="GitHub Logo" />
890      </p>
891      <h3 class="mume-header fontColor" id="header-index-4">Hiperf泳道图的框选功能</h3>
892
893      <p class="fontColor">
894        可以对CPU使用量区,进程和线程区数据进行框选,框选后在最下方的弹出层中会展示框选数据的统计表格,总共有四个tab页。
895        <br />
896        Perf Profile的Tab页如图:
897        <br />
898        <img src="../figures/perf/PerfProfile.jpg" alt="GitHub Logo" />
899      </p>
900      <ul class="fontColor">
901        <li>
902          <pre class="smartperf-text fontColor light">
903Call 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。
904</pre
905          >
906        </li>
907        <li>
908          <pre class="smartperf-text fontColor light">
909Local:为该调用方法自身占用的CPU时间。
910</pre
911          >
912        </li>
913        <li>
914          <pre class="smartperf-text fontColor light">
915Sample Count:采样次数。
916</pre
917          >
918        </li>
919        <li>
920          <pre class="smartperf-text fontColor light">
921Event Count:事件次数。
922</pre
923          >
924        </li>
925      </ul>
926      <p class="fontColor">
927        Sample List的Tab页如图:
928        <br />
929        <img src="../figures/perf/Samplelist.jpg" alt="GitHub Logo" />
930      </p>
931      <ul class="fontColor">
932        <li>
933          <pre class="smartperf-text fontColor light">
934Sample Time:采样的时间戳信息。
935</pre
936          >
937        </li>
938        <li>
939          <pre class="smartperf-text fontColor light">
940Core:当前的CPU核信息。
941</pre
942          >
943        </li>
944        <li>
945          <pre class="smartperf-text fontColor light">
946Process:进程名。
947</pre
948          >
949        </li>
950        <li>
951          <pre class="smartperf-text fontColor light">
952Thread:线程名。
953</pre
954          >
955        </li>
956        <li>
957          <pre class="smartperf-text fontColor light">
958State:运行状态。
959</pre
960          >
961        </li>
962        <li>
963          <pre class="smartperf-text fontColor light">
964Backtrace:栈顶的调用栈名称。
965</pre
966          >
967        </li>
968      </ul>
969      <h3 class="mume-header fontColor" id="header-index-5">Hiperf支持多种Options展示风格</h3>
970
971      <p class="fontColor">
972        点击Perf Profile的Tab页底部的Options,会有四个CheckBox复选框。
973        <br />
974        <img src="../figures/perf/Options.jpg" alt="GitHub Logo" />
975      </p>
976      <ul class="fontColor">
977        <li>
978          <pre class="smartperf-text fontColor light">
979Invert:反向输出调用树。
980</pre
981          >
982        </li>
983        <li>
984          <pre class="smartperf-text fontColor light">
985Hide System so:隐藏系统库文件。
986</pre
987          >
988        </li>
989        <li>
990          <pre class="smartperf-text fontColor light">
991Hide Thread:隐藏线程。
992</pre
993          >
994        </li>
995        <li>
996          <pre class="smartperf-text fontColor light">
997Hide Thread State:隐藏线程状态。
998</pre
999          >
1000        </li>
1001      </ul>
1002      <h3 class="mume-header fontColor" id="header-index-6">Hiperf支持过滤调用栈调用次数的展示风格</h3>
1003
1004      <p class="fontColor">
1005        点击Perf Profile的Tab页底部的Sample Count 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。
1006        <br />
1007        <img src="../figures/perf/samplecounter.jpg" alt="GitHub Logo" />
1008      </p>
1009      <h3 class="mume-header fontColor" id="header-index-7">Hiperf功能的调用栈Group展示-数据分析支持剪裁功能</h3>
1010
1011      <p class="fontColor"><img src="../figures/perf/datamining.jpg" alt="GitHub Logo" /></p>
1012      <ul class="fontColor">
1013        <li>
1014          <p class="fontColor">
1015            裁剪Callstack,点击Callstack上一个节点符号,再点击底部Symbol
1016            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。
1017          </p>
1018        </li>
1019        <li>
1020          <p class="fontColor">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。</p>
1021        </li>
1022        <li>
1023          <p class="fontColor">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。</p>
1024        </li>
1025      </ul>
1026      <h3 class="mume-header fontColor" id="header-index-8">Hiperf功能的调用栈Group展示支持按条件过滤</h3>
1027
1028      <p class="fontColor">
1029        在Input Filter输入关键字,会显示出带有该关键字的展示信息。
1030        <br />
1031        <img src="../figures/perf/inputfilter.jpg" alt="GitHub Logo" />
1032      </p>
1033      <h3 class="mume-header fontColor" id="header-index-9">Hiperf辅助信息区展示调用栈</h3>
1034
1035      <p class="fontColor">
1036        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。对上展示到根节点,对下则展示CPU占用率最大的调用栈。调用栈右侧有Sliding
1037        bar可以滚动。
1038        <br />
1039        如下图的Heaviest Stack Trace:
1040        <br />
1041        <img src="../figures/perf/heaviesttrace1.jpg" alt="GitHub Logo" />
1042      </p>
1043      <h3 class="mume-header fontColor" id="header-index-10">Hiperf的火焰图功能</h3>
1044
1045      <p class="fontColor">
1046        点击Perf Profile左下角的柱状图的图标,会切换到火焰图页面。
1047        <br />
1048        <img src="../figures/perf/flame.jpg" alt="GitHub Logo" />
1049        <br />
1050        进入到火焰图页面,火焰图的展示跟 Perf Profile
1051        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,Lib,Addr,Count,% in current Thread,% in
1052        current Process,% in all Process。
1053        <br />
1054        <img src="../figures/perf/flameshow.jpg" alt="GitHub Logo" />
1055      </p>
1056      <h3 class="mume-header fontColor" id="header-index-11">Hiperf的show event count功能</h3>
1057
1058      <p class="fontColor">
1059        在Hiperf的父级泳道图上增加筛选功能,可在Cpu Usage 和各种event
1060        type之间选择,切换选择之后即可将Hiperf下级各个泳道图数据更新,悬浮框可以根据选择的事件名显示对应的event count。
1061        <br />
1062        <img src="../figures/perf/showevent.jpg" alt="GitHub Logo" />
1063      </p>
1064      <h3 class="mume-header fontColor" id="header-index-12">
1065        Hiperf的CPU/进程级/线程级泳道支持时序火焰图, 按照每个时间点的调用栈显示功能
1066      </h3>
1067
1068      <p class="fontColor">
1069        根据Hiperf父级泳道图所筛选的类型,来显示各个CPU或者线程的时序火焰图,用户可根据自己的需要,点击泳道图旁边的齿轮标志筛选出某个cpu
1070        或者线程的时序火焰图数据。
1071        <br />
1072        <img src="../figures/perf/cpuandthreadrow.jpg" alt="GitHub Logo" />
1073      </p>
1074      <h3 class="mume-header fontColor" id="header-index-13">
1075        Hiperf的调用栈分析饼图/火焰图支持按进程、线程粒度可选, 饼图可以跳转到火焰图功能
1076      </h3>
1077
1078      <p class="fontColor">
1079        Hiperf分为process、thread、library、function四层,调用栈均可在每层的表格上鼠标点击右键跳转到对应的火焰图Tab页。火焰图上方标题显示是由哪一层跳转而来,点击关闭图标火焰图重置为当前框选范围的所有数据
1080        <br />
1081        <img src="../figures/perf/perf_analysisjump.jpg" alt="GitHub Logo" />
1082        <br />
1083        如上图,右键点击hiprofiler_plugins可以跳转到下图
1084        <br />
1085        <img src="../figures/perf/perf_jumpframe.jpg" alt="GitHub Logo" />
1086        <br />
1087        筛选面板新增Hide Thread、Hide Thread State筛选选项,Hiperf可隐藏线程和线程状态。
1088        <br />
1089        <img src="../figures/perf/perf_hide.jpg" alt="GitHub Logo" />
1090      </p>
1091    </div>
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