Perfetto分析Android系统

1. 创建config.pbtx配置文件,内容如下

duration_ms: 15000
write_into_file: true

buffers: {
    size_kb: 63488
    fill_policy: RING_BUFFER
}
buffers: {
    size_kb: 2048
    fill_policy: RING_BUFFER
}
file_write_period_ms: 2500
max_file_size_bytes: 100000000
flush_period_ms: 30000
incremental_state_config {
    clear_period_ms: 5000
}

data_sources: {
    config {
        name: "android.gpu.memory"
    }
}

data_sources: {
    config {
        name: "linux.ftrace"
        ftrace_config {
            ftrace_events: "sched/sched_switch"
            ftrace_events: "sched/sched_waking"
            ftrace_events: "power/suspend_resume"
            ftrace_events: "power/cpu_frequency"
            ftrace_events: "power/cpu_idle"
            ftrace_events: "power/gpu_frequency"
            ftrace_events: "gpu_mem/gpu_mem_total"
            ftrace_events: "sched/sched_process_exit"
            ftrace_events: "sched/sched_process_free"
            ftrace_events: "task/task_newtask"
            ftrace_events: "task/task_rename"
            ftrace_events: "ftrace/print"
            ftrace_events: "sched/sched_blocked_reason"
            atrace_categories: "view"
            atrace_categories: "webview"
            atrace_categories: "wm"
            atrace_categories: "am"
            atrace_categories: "sm"
            atrace_categories: "audio"
            atrace_categories: "video"
            atrace_categories: "camera"
            atrace_categories: "hal"
            atrace_categories: "res"
            atrace_categories: "dalvik"
            atrace_categories: "rs"
            atrace_categories: "bionic"
            atrace_categories: "power"
            atrace_categories: "pm"
            atrace_categories: "ss"
            atrace_categories: "database"
            atrace_categories: "network"
            atrace_categories: "adb"
            atrace_categories: "vibrator"
            atrace_categories: "aidl"
            atrace_categories: "nnapi"
            atrace_categories: "rro"
            atrace_categories: "binder_driver"
            atrace_categories: "binder_lock"
            atrace_categories: "gfx"
            atrace_apps: "*"
        }
    }
}
data_sources: {
    config {
        name: "linux.process_stats"
        target_buffer: 1
        process_stats_config {
            scan_all_processes_on_start: true
        }
    }
}
data_sources: {
    config {
        name: "linux.sys_stats"
        sys_stats_config {
            vmstat_period_ms: 1000
            stat_period_ms: 1000
            stat_counters: STAT_CPU_TIMES
            stat_counters: STAT_FORK_COUNT
        }
    }
}
data_sources: {
    config: {
        name: "track_event"
        target_buffer: 0
    }
}

2. 创建perfetto.bat批处理文件,内容如下

adb root
adb shell setenforce 0
adb shell setprop persist.traced.enable 1
adb push config.pbtx /data/local/tmp/config.pbtx
adb shell "cat /data/local/tmp/config.pbtx | perfetto --txt -c - -o /data/misc/perfetto-traces/trace.perfetto-trace"
adb pull /data/misc/perfetto-traces/trace.perfetto-trace trace
echo "perfetto trace finished"

3. 执行批处理, 得到trace文件

4. 打开Perfetto UI, 将trace文件拖入