نمایه‌های پُرسمان با PerfettoSQL

-- You only need to call this once in the session to create or update the function
CREATE OR REPLACE PERFETTO FUNCTION find_duplicates(pattern STRING) RETURNS
TABLE(name STRING, count_slice LONG) AS SELECT name, COUNT(dur) as count_slice FROM slice WHERE name GLOB $pattern GROUP BY name HAVING COUNT(name) >= 2 ORDER BY count_slice DESC;

-- Subsequent calls can just use the function to find dupes
SELECT * FROM find_duplicates('*Text*')

INCLUDE PERFETTO module android.frames.timeline;
SELECT * FROM android_frames WHERE dur > 16660000;

INCLUDE PERFETTO module android.frames.timeline;
SELECT * FROM actual_frame_timeline_slice WHERE jank_type GLOB '*App Deadline Missed*';

INCLUDE PERFETTO MODULE android.memory.heap_graph.heap_graph_class_aggregation;

SELECT * FROM android_heap_graph_class_aggregation WHERE obj_count >= 2
ORDER BY obj_count DESC LIMIT 100

-- This function finds slices that match the given GLOB $pattern
CREATE OR REPLACE PERFETTO FUNCTION find_slices(pattern STRING) RETURNS
TABLE (name STRING, ts LONG, dur LONG) AS
SELECT name,ts,dur FROM slice WHERE name GLOB $pattern;

-- This function generates a slice that starts at $startSlicePattern and finishes at the slice matched by $endSlicePattern. If $inclusive is true, then the end slice dur will be added, otherwise, the end slice start time will be used.
CREATE OR REPLACE PERFETTO FUNCTION generate_start_to_end_slices(startSlicePattern STRING, endSlicePattern STRING, inclusive BOOL) RETURNS
TABLE(name STRING, ts LONG, dur LONG) AS
SELECT name, ts, MIN(startToEndDur) as dur
FROM
  (SELECT S.name as name, S.ts as ts, E.ts + IIF($inclusive, E.dur, 0) - S.ts as startToEndDur
  FROM find_slices($startSlicePattern) as S CROSS JOIN find_slices($endSlicePattern) as E
  WHERE startToEndDur > 0)
GROUP BY name, ts;

-- Using these functions we can estimate cold startup time by generating a slice between bindApplication and first frame.
SELECT * from generate_start_to_end_slices('bindApplication','*Choreographer#doFrame [0-9]*', true)