Android Perfetto 系列 15：Boot Trace、长Time现场 Trace 与偶发问题抓取

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SELECT 'expected' AS table_name, COUNT(*) AS rows
FROM expected_frame_timeline_slice
UNION ALL
SELECT 'actual' AS table_name, COUNT(*) AS rows
FROM actual_frame_timeline_slice;

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WITH target_window AS (
  SELECT trace_start() AS ts, trace_dur() AS dur
),
frame_process AS (
  SELECT
    p.name AS process_name,
    COUNT(*) AS frame_count,
    MIN(a.ts) / 1e9 AS first_frame_s,
    MAX(a.ts) / 1e9 AS last_frame_s
  FROM actual_frame_timeline_slice a
  JOIN process p USING (upid)
  JOIN target_window tw
  WHERE a.ts BETWEEN tw.ts AND tw.ts + tw.dur
    AND (
      p.name = 'com.example.app'
      OR p.name = 'surfaceflinger'
      OR p.name = '/system/bin/surfaceflinger'
      OR p.cmdline LIKE '%surfaceflinger%'
    )
  GROUP BY p.name
)
SELECT
  process_name,
  frame_count,
  first_frame_s,
  last_frame_s
FROM frame_process
ORDER BY frame_count DESC;

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data_sources {
  config {
    name: "linux.ftrace"
    ftrace_config {
      ftrace_events: "irq/irq_handler_entry"
      ftrace_events: "irq/irq_handler_exit"
      ftrace_events: "irq/softirq_entry"
      ftrace_events: "irq/softirq_exit"
      ftrace_events: "irq/softirq_raise"
      ftrace_events: "workqueue/workqueue_queue_work"
      ftrace_events: "workqueue/workqueue_execute_start"
      ftrace_events: "workqueue/workqueue_execute_end"
    }
  }
}

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duration_ms: 3600000
prefer_suspend_clock_for_duration: true
write_into_file: true
file_write_period_ms: 10000
max_file_size_bytes: 2147483648
flush_period_ms: 30000

buffers {
  size_kb: 32768
  fill_policy: RING_BUFFER
}