鸿蒙开发实战：【性能调优组件】-编程知识

简介

性能调优组件包含系统和应用调优框架，旨在为开发者提供一套性能调优平台，可以用来分析内存、性能等问题。

该组件整体分为PC端和设备端两部分，PC端最终作为deveco studio的插件进行发布，内部主要包括分为UI绘制、设备管理、进程管理、插件管理、数据导入、数据存储、数据分析、Session管理、配置管理等模块；设备端主要包括命令行工具、服务进程、插件集合、应用程序组件等模块。设备端提供了插件扩展能力，对外提供了插件接口，基于该扩展能力可以按需定义自己的能力，并集成到框架中来，目前基于插件能力已经完成了实时内存插件,trace插件。下文会重点对设备端提供的插件能力进行介绍。

架构图

说明

下面针对设备端对外提供的插件扩展能力进行接口和使用说明。

接口说明

下面是设备端插件模块对外提供的接口：

PluginModuleCallbacks为插件模块对外提供的回调接口，插件管理模块通过该回调接口列表与每一个插件模块进行交互，每一个新增插件都需要实现该接口列表中的函数。

表 1 PluginModuleCallbacks接口列表

接口名	类型	描述
PluginModuleCallbacks::onPluginSessionStart	int (PluginSessionStartCallback)(const uint8_t configData, uint32_t configSize);	- 功能：

[]()[]()插件会话开始接口，开始插件会话时会被调用，用来下发插件配置

表 2 WriterStruct接口列表

接口名	类型	描述
WriterStruct::write	long (WriteFuncPtr)(WriterStruct writer, const void* data, size_t size);	- 功能：

[]()[]()写接口，将插件中采集的数据通过writer进行写入

表 3 PluginModuleStruct接口列表

接口名	类型	描述
PluginModuleStruct::callbacks	PluginModuleCallbacks*	功能：定义插件回调函数列表
PluginModuleStruct::name	C style string	功能：定义插件名称
PluginModuleStruct::resultBufferSizeHint	uint32_t	功能：用于提示插件管理模块调用数据上报接口时使用的内存缓冲区字节数

使用说明

下面介绍在设备端基于性能调优框架提供的插件能力，新增一个插件涉及到的关键开发步骤：

编写proto数据定义文件_plugin_data.proto_，定义数据源格式，数据源格式决定了插件上报哪些数据：
```
message PluginData {int32 pid = 1;string name = 2;uint64 count1 = 3;uint64 count2 = 4;uint64 count3 = 5;......
}
```
编写数据源配置文件_plugin_config.proto_，采集的行为可以根据配置进行变化，可以设置数据源上报间隔等信息：
```
message PluginConfig {int32 pid = 1;bool report_interval = 2;int report_counter_id_1 = 3;int report_counter_id_2 = 4;......
}
```

定义PluginModuleCallbacks实现插件回调接口；定义PluginModuleStruct类型的g_pluginModule全局变量，注册插件信息。

static PluginModuleCallbacks callbacks = {PluginSessionStart,PluginReportResult,PluginSessionStop,
};
PluginModuleStruct g_pluginModule = {&callbacks, "test-plugin", MAX_BUFFER_SIZE};

通过PluginSessionStart（名字可以自己定义）实现插件回调接口列表的onPluginSessionStart接口，主要处理插件的开始流程。
```
int PluginSessionStart(const uint8_t* configData, uint32_t configSize)
{......return 0;
} 
```
通过PluginReportResult（名字可以自己定义）实现插件回调接口列表的onPluginReportResult接口，将插件内部采集的信息通过该接口进行上报：
```
int PluginReportResult(uint8_t* bufferData, uint32_t bufferSize)
{......return 0;
} 
```
通过PluginSessionStop（名字可以自己定义）实现插件回调接口列表的onPluginSessionStop接口，主要进行插件停止后的操作流程。
```
int PluginSessionStop()
{......return 0;
}
```

编写proto gn构建脚本, 生成protobuf源文件，protobuf源文件编译生成目标文件:

action("plugin_cpp_gen") {script = "${OHOS_PROFILER_DIR}/build/protoc.sh"  //依赖的编译工具链sources = [   //定义的插件相关的proto文件，比如插件配置文件、插件数据对应的proto文件"plugin_data.proto","plugin_config.proto",]outputs = [    //通过protoc编译生成的结果文件"plugin_data.pb.h","plugin_data.pb.cc","plugin_config.pb.h","plugin_config.pb.cc",]args = ["--cpp_out","$proto_rel_out_dir","--proto_path",rebase_path(".", root_build_dir),]deps = ["${OHOS_PROFILER_3RDPARTY_PROTOBUF_DIR}:protoc(${host_toolchain})",]
}
ohos_source_set("plug_cpp") {   //将定义的proto文件生成cpp文件deps = [":plugin_cpp_gen",]public_deps = ["${OHOS_PROFILER_3RDPARTY_PROTOBUF_DIR}:protobuf","${OHOS_PROFILER_3RDPARTY_PROTOBUF_DIR}:protobuf_lite",]include_dirs = [ "$proto_out_dir" ]sources = [   //目标plug_cpp中包括的源文件"plugin_data.pb.h","plugin_data.pb.cc","plugin_config.pb.h","plugin_config.pb.cc",]
}

编写插件GN构建脚本:

ohos_shared_library("***plugin") {output_name = "***plugin"sources = ["src/***plugin.cpp",  //插件中的源文件]include_dirs = ["../api/include","${OHOS_PROFILER_DIR}/device/base/include",]deps = ["${OHOS_PROFILER_3RDPARTY_PROTOBUF_DIR}:protobuf_lite","${OHOS_PROFILER_3RDPARTY_PROTOBUF_DIR}:protoc_lib","${OHOS_PROFILER_DIR}/protos/types/plugins/**:plug_cpp",  //上面ohos_source_set中生成的plug_cpp]install_enable = truesubsystem_name = "${OHOS_PROFILER_SUBSYS_NAME}"
}

调测验证：

插件动态库生成后，可以自己编写测试代码，通过dlopen加载动态库，并调用上面代码中实现的插件模块回调函数进行验证。

int main(int argc, char** argv)
{void* handle;PluginModuleStruct* memplugin;handle = dlopen("./libplugin.z.so", RTLD_LAZY);   //动态打开上面生成的插件动态库if (handle == nullptr) {HILOGD("dlopen err:%s.", dlerror());return 0;}memplugin = (PluginModuleStruct*)dlsym(handle, "g_pluginModule");  //获取开发步骤3中定义的g_pluginModule全局变量//check memplugin->callbacks   // 通过该指针调用上面开发步骤3中定义的回调函数return 0;

hiprofiler_cmd 使用说明

参数说明

执行hiprofiler_cmd 为调优业务的离线命令行抓取工具，具体使用方法及命令行参数介绍如下。

可以使用-h或者--help参数查看命令的使用描述信息：

hiprofiler_cmd -h
help :--getport        -q     : get grpc address--time           -t     : trace time--out            -o     : output file name--help           -h     : make some help--list           -l     : plugin list--start          -s     : start dependent process--kill           -k     : kill dependent process--config         -c     : start trace by config file

其余参数使用说明如下：

-q或者--getport选项，用于查询服务的端口信息；
-t或者--time选项，用于指定抓取时间，单位是秒；
-o或者--out选项，用于指定输出的离线数据文件名；
-h或者--help选项，用于输出帮助信息；
-l或者--list选项，用于查询插件列表；
-s或者--start选项，用于启动依赖的进程；
-k或者--kill选项，用于关闭依赖的进程；
-c或者--config选项，用于指定配置文件；

命令展示

基础配置参数

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}
CONFIG

命令参数说明：

request_id:本次请求的id
pages:存储trace数据的buffer大小（4 * pages kb）
result_file:结果输出的文件路径，与-o参数对应
sample_duration:抓取时长（ms），与-t参数对应

ftrace抓取场景示例

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}plugin_configs {plugin_name: "ftrace-plugin"sample_interval: 1000config_data {ftrace_events: "sched/sched_switch"ftrace_events: "power/suspend_resume"ftrace_events: "sched/sched_wakeup"ftrace_events: "sched/sched_wakeup_new"ftrace_events: "sched/sched_waking"ftrace_events: "sched/sched_process_exit"ftrace_events: "sched/sched_process_free"ftrace_events: "task/task_newtask"ftrace_events: "task/task_rename"buffer_size_kb: 2048flush_interval_ms: 1000flush_threshold_kb: 4096parse_ksyms: trueclock: "mono"trace_period_ms: 200debug_on: falsehitrace_time: 50}}
CONFIG

命令参数说明：

sample_interval:轮循模式下,插件上报数据的间隔时间（ms）
trace_period_ms:ftrace插件读取内核缓冲区数据的间隔时间（ms）
hitrace_time:hitrace命令行抓取时间，与hiprofiler_cmd下发的-t配置联动

内存信息抓取场景示例

内核内存信息

使用如下命令：

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}plugin_configs {plugin_name: "memory-plugin"sample_interval: 5000config_data {report_process_tree: truereport_sysmem_mem_info: truesys_meminfo_counters: PMEM_ACTIVEsys_meminfo_counters: PMEM_ACTIVE_ANONsys_meminfo_counters: PMEM_ACTIVE_FILEsys_meminfo_counters: PMEM_ANON_PAGESsys_meminfo_counters: PMEM_BUFFERSsys_meminfo_counters: PMEM_CACHEDsys_meminfo_counters: PMEM_CMA_FREEsys_meminfo_counters: PMEM_CMA_TOTALsys_meminfo_counters: PMEM_COMMIT_LIMITsys_meminfo_counters: PMEM_COMMITED_ASsys_meminfo_counters: PMEM_DIRTYsys_meminfo_counters: PMEM_INACTIVEsys_meminfo_counters: PMEM_INACTIVE_ANONsys_meminfo_counters: PMEM_INACTIVE_FILEsys_meminfo_counters: PMEM_KERNEL_STACKsys_meminfo_counters: PMEM_MAPPEDsys_meminfo_counters: PMEM_MEM_AVAILABLEsys_meminfo_counters: PMEM_MEM_FREEsys_meminfo_counters: PMEM_MEM_TOTALsys_meminfo_counters: PMEM_MLOCKEDsys_meminfo_counters: PMEM_PAGE_TABLESsys_meminfo_counters: PMEM_SHMEMsys_meminfo_counters: PMEM_SLABsys_meminfo_counters: PMEM_SLAB_RECLAIMABLEsys_meminfo_counters: PMEM_SLAB_UNRECLAIMABLEsys_meminfo_counters: PMEM_SWAP_CACHEDsys_meminfo_counters: PMEM_SWAP_FREEsys_meminfo_counters: PMEM_SWAP_TOTALsys_meminfo_counters: PMEM_UNEVICTABLEsys_meminfo_counters: PMEM_VMALLOC_CHUNKsys_meminfo_counters: PMEM_VMALLOC_TOTALsys_meminfo_counters: PMEM_VMALLOC_USEDsys_meminfo_counters: PMEM_WRITEBACKsys_meminfo_counters: PMEM_KERNEL_RECLAIMABLEreport_sysmem_vmem_info: truereport_process_mem_info: truereport_app_mem_info: falsereport_app_mem_by_memory_service: false}}
CONFIG

虚拟内存统计

使用如下命令：

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}plugin_configs {plugin_name: "memory-plugin"sample_interval: 5000config_data {report_process_tree: truereport_sysmem_mem_info: truereport_sysmem_vmem_info: truesys_vmeminfo_counters: VMEMINFO_UNSPECIFIEDsys_vmeminfo_counters: VMEMINFO_NR_FREE_PAGESsys_vmeminfo_counters: VMEMINFO_NR_ALLOC_BATCHsys_vmeminfo_counters: VMEMINFO_NR_INACTIVE_ANONsys_vmeminfo_counters: VMEMINFO_NR_ACTIVE_ANONsys_vmeminfo_counters: VMEMINFO_NR_INACTIVE_FILEsys_vmeminfo_counters: VMEMINFO_NR_ACTIVE_FILEsys_vmeminfo_counters: VMEMINFO_NR_UNEVICTABLEsys_vmeminfo_counters: VMEMINFO_NR_MLOCKsys_vmeminfo_counters: VMEMINFO_NR_ANON_PAGESsys_vmeminfo_counters: VMEMINFO_NR_MAPPEDsys_vmeminfo_counters: VMEMINFO_NR_FILE_PAGESsys_vmeminfo_counters: VMEMINFO_NR_DIRTYsys_vmeminfo_counters: VMEMINFO_NR_WRITEBACKsys_vmeminfo_counters: VMEMINFO_NR_SLAB_RECLAIMABLEsys_vmeminfo_counters: VMEMINFO_NR_SLAB_UNRECLAIMABLEsys_vmeminfo_counters: VMEMINFO_NR_PAGE_TABLE_PAGESsys_vmeminfo_counters: VMEMINFO_NR_KERNEL_STACKsys_vmeminfo_counters: VMEMINFO_NR_OVERHEADsys_vmeminfo_counters: VMEMINFO_NR_UNSTABLEsys_vmeminfo_counters: VMEMINFO_NR_BOUNCEsys_vmeminfo_counters: VMEMINFO_NR_VMSCAN_WRITEsys_vmeminfo_counters: VMEMINFO_NR_VMSCAN_IMMEDIATE_RECLAIMsys_vmeminfo_counters: VMEMINFO_NR_WRITEBACK_TEMPsys_vmeminfo_counters: VMEMINFO_NR_ISOLATED_ANONsys_vmeminfo_counters: VMEMINFO_NR_ISOLATED_FILEsys_vmeminfo_counters: VMEMINFO_NR_SHMEMsys_vmeminfo_counters: VMEMINFO_NR_DIRTIEDsys_vmeminfo_counters: VMEMINFO_NR_WRITTENsys_vmeminfo_counters: VMEMINFO_NR_PAGES_SCANNEDsys_vmeminfo_counters: VMEMINFO_WORKINGSET_REFAULTsys_vmeminfo_counters: VMEMINFO_WORKINGSET_ACTIVATEsys_vmeminfo_counters: VMEMINFO_WORKINGSET_NODERECLAIMsys_vmeminfo_counters: VMEMINFO_NR_ANON_TRANSPARENT_HUGEPAGESsys_vmeminfo_counters: VMEMINFO_NR_FREE_CMAsys_vmeminfo_counters: VMEMINFO_NR_SWAPCACHEsys_vmeminfo_counters: VMEMINFO_NR_DIRTY_THRESHOLDsys_vmeminfo_counters: VMEMINFO_NR_DIRTY_BACKGROUND_THRESHOLDsys_vmeminfo_counters: VMEMINFO_PGPGINsys_vmeminfo_counters: VMEMINFO_PGPGOUTsys_vmeminfo_counters: VMEMINFO_PGPGOUTCLEANsys_vmeminfo_counters: VMEMINFO_PSWPINsys_vmeminfo_counters: VMEMINFO_PSWPOUTsys_vmeminfo_counters: VMEMINFO_PGALLOC_DMAsys_vmeminfo_counters: VMEMINFO_PGALLOC_NORMALsys_vmeminfo_counters: VMEMINFO_PGALLOC_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGFREEsys_vmeminfo_counters: VMEMINFO_PGACTIVATEsys_vmeminfo_counters: VMEMINFO_PGDEACTIVATEsys_vmeminfo_counters: VMEMINFO_PGFAULTsys_vmeminfo_counters: VMEMINFO_PGMAJFAULTsys_vmeminfo_counters: VMEMINFO_PGREFILL_DMAsys_vmeminfo_counters: VMEMINFO_PGREFILL_NORMALsys_vmeminfo_counters: VMEMINFO_PGREFILL_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSTEAL_KSWAPD_DMAsys_vmeminfo_counters: VMEMINFO_PGSTEAL_KSWAPD_NORMALsys_vmeminfo_counters: VMEMINFO_PGSTEAL_KSWAPD_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSTEAL_DIRECT_DMAsys_vmeminfo_counters: VMEMINFO_PGSTEAL_DIRECT_NORMALsys_vmeminfo_counters: VMEMINFO_PGSTEAL_DIRECT_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSCAN_KSWAPD_DMAsys_vmeminfo_counters: VMEMINFO_PGSCAN_KSWAPD_NORMALsys_vmeminfo_counters: VMEMINFO_PGSCAN_KSWAPD_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSCAN_DIRECT_DMAsys_vmeminfo_counters: VMEMINFO_PGSCAN_DIRECT_NORMALsys_vmeminfo_counters: VMEMINFO_PGSCAN_DIRECT_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSCAN_DIRECT_THROTTLEsys_vmeminfo_counters: VMEMINFO_PGINODESTEALsys_vmeminfo_counters: VMEMINFO_SLABS_SCANNEDsys_vmeminfo_counters: VMEMINFO_KSWAPD_INODESTEALsys_vmeminfo_counters: VMEMINFO_KSWAPD_LOW_WMARK_HIT_QUICKLYsys_vmeminfo_counters: VMEMINFO_KSWAPD_HIGH_WMARK_HIT_QUICKLYsys_vmeminfo_counters: VMEMINFO_PAGEOUTRUNsys_vmeminfo_counters: VMEMINFO_ALLOCSTALLsys_vmeminfo_counters: VMEMINFO_PGROTATEDsys_vmeminfo_counters: VMEMINFO_DROP_PAGECACHEsys_vmeminfo_counters: VMEMINFO_DROP_SLABsys_vmeminfo_counters: VMEMINFO_PGMIGRATE_SUCCESSsys_vmeminfo_counters: VMEMINFO_PGMIGRATE_FAILsys_vmeminfo_counters: VMEMINFO_COMPACT_MIGRATE_SCANNEDsys_vmeminfo_counters: VMEMINFO_COMPACT_FREE_SCANNEDsys_vmeminfo_counters: VMEMINFO_COMPACT_ISOLATEDsys_vmeminfo_counters: VMEMINFO_COMPACT_STALLsys_vmeminfo_counters: VMEMINFO_COMPACT_FAILsys_vmeminfo_counters: VMEMINFO_COMPACT_SUCCESSsys_vmeminfo_counters: VMEMINFO_COMPACT_DAEMON_WAKEsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_CULLEDsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_SCANNED sys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_RESCUEDsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_MLOCKEDsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_MUNLOCKEDsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_CLEAREDsys_vmeminfo_counters: VMEMINFO_UNEVICTABLE_PGS_STRANDEDsys_vmeminfo_counters: VMEMINFO_NR_ZSPAGESsys_vmeminfo_counters: VMEMINFO_NR_ION_HEAPsys_vmeminfo_counters: VMEMINFO_NR_GPU_HEAPsys_vmeminfo_counters: VMEMINFO_ALLOCSTALL_DMAsys_vmeminfo_counters: VMEMINFO_ALLOCSTALL_MOVABLEsys_vmeminfo_counters: VMEMINFO_ALLOCSTALL_NORMALsys_vmeminfo_counters: VMEMINFO_COMPACT_DAEMON_FREE_SCANNEDsys_vmeminfo_counters: VMEMINFO_COMPACT_DAEMON_MIGRATE_SCANNEDsys_vmeminfo_counters: VMEMINFO_NR_FASTRPCsys_vmeminfo_counters: VMEMINFO_NR_INDIRECTLY_RECLAIMABLEsys_vmeminfo_counters: VMEMINFO_NR_ION_HEAP_POOLsys_vmeminfo_counters: VMEMINFO_NR_KERNEL_MISC_RECLAIMABLEsys_vmeminfo_counters: VMEMINFO_NR_SHADOW_CALL_STACK_BYTESsys_vmeminfo_counters: VMEMINFO_NR_SHMEM_HUGEPAGESsys_vmeminfo_counters: VMEMINFO_NR_SHMEM_PMDMAPPEDsys_vmeminfo_counters: VMEMINFO_NR_UNRECLAIMABLE_PAGESsys_vmeminfo_counters: VMEMINFO_NR_ZONE_ACTIVE_ANONsys_vmeminfo_counters: VMEMINFO_NR_ZONE_ACTIVE_FILEsys_vmeminfo_counters: VMEMINFO_NR_ZONE_INACTIVE_ANONsys_vmeminfo_counters: VMEMINFO_NR_ZONE_INACTIVE_FILEsys_vmeminfo_counters: VMEMINFO_NR_ZONE_UNEVICTABLEsys_vmeminfo_counters: VMEMINFO_NR_ZONE_WRITE_PENDINGsys_vmeminfo_counters: VMEMINFO_OOM_KILL sys_vmeminfo_counters: VMEMINFO_PGLAZYFREEsys_vmeminfo_counters: VMEMINFO_PGLAZYFREEDsys_vmeminfo_counters: VMEMINFO_PGREFILLsys_vmeminfo_counters: VMEMINFO_PGSCAN_DIRECTsys_vmeminfo_counters: VMEMINFO_PGSCAN_KSWAPDsys_vmeminfo_counters: VMEMINFO_PGSKIP_DMAsys_vmeminfo_counters: VMEMINFO_PGSKIP_MOVABLEsys_vmeminfo_counters: VMEMINFO_PGSKIP_NORMALsys_vmeminfo_counters: VMEMINFO_PGSTEAL_DIRECTsys_vmeminfo_counters: VMEMINFO_PGSTEAL_KSWAPDsys_vmeminfo_counters: VMEMINFO_SWAP_RAsys_vmeminfo_counters: VMEMINFO_SWAP_RA_HITsys_vmeminfo_counters: VMEMINFO_WORKINGSET_RESTOREreport_process_mem_info: truereport_app_mem_info: falsereport_app_mem_by_memory_service: false}}
CONFIG

进程内存使用跟踪

如配置抓取的进程名是com.ohos.mms

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}plugin_configs {plugin_name: "nativehook"sample_interval: 5000config_data {save_file: falsefilter_size: 4096smb_pages: 16384max_stack_depth: 10process_name: "com.ohos.mms"malloc_free_matching_interval: 1000malloc_free_matching_cnt: 1000string_compressed: truefp_unwind: true}}
CONFIG

配置参数说明：

pid/process_name:设置抓取的进程ID或者进程名
max_stack_depth:抓取的栈的深度
smb_pages:native_daemon和native_hook进程之间存储数据的共享内存大小（4KB的倍数）
filter_size:只抓取大于该size的malloc数据（free不受影响）

bytrace/hitrace场景示例

运行如下命令：

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 30 \-s \
<<CONFIGrequest_id: 1session_config {buffers {pages: 1000}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 30000}plugin_configs {plugin_name: "ftrace-plugin"sample_interval: 1000config_data {hitrace_time: 10hitrace_categories: "ability"hitrace_categories: "ace"hitrace_categories: "binder"hitrace_categories: "dsoftbus"hitrace_categories: "freq"hitrace_categories: "graphic"hitrace_categories: "idle"hitrace_categories: "memory"hitrace_categories: "dcamera"hitrace_categories: "ohos"hitrace_categories: "rpc"hitrace_categories: "sched"hitrace_categories: "sync"hitrace_categories: "window"buffer_size_kb: 51200flush_interval_ms: 1000flush_threshold_kb: 4096parse_ksyms: trueclock: "mono"trace_period_ms: 200debug_on: false}}
CONFIG

hiperf场景示例

运行如下命令：

hiprofiler_cmd \-c - \-o /data/local/tmp/hiprofiler_data.htrace \-t 50 \-s \-k \
<<CONFIGrequest_id: 1session_config {buffers {pages: 16384}result_file: "/data/local/tmp/hiprofiler_data.htrace"sample_duration: 50000}plugin_configs {plugin_name: "hiperf-plugin"sample_interval: 5000config_data {is_root: falseoutfile_name: "/data/local/tmp/perf.data"record_args: "-f 1000 -a  --cpu-limit 100 -e hw-cpu-cycles,sched:sched_waking --call-stack dwarf --clockid monotonic --offcpu -m 256"}}
CONFIG