1-- 2-- Copyright 2019 The Android Open Source Project 3-- 4-- Licensed under the Apache License, Version 2.0 (the "License"); 5-- you may not use this file except in compliance with the License. 6-- You may obtain a copy of the License at 7-- 8-- https://www.apache.org/licenses/LICENSE-2.0 9-- 10-- Unless required by applicable law or agreed to in writing, software 11-- distributed under the License is distributed on an "AS IS" BASIS, 12-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13-- See the License for the specific language governing permissions and 14-- limitations under the License. 15-- 16 17SELECT RUN_METRIC('android/process_oom_score.sql'); 18 19-- All LMK events ordered by timestamp 20DROP TABLE IF EXISTS lmk_events; 21CREATE TABLE lmk_events AS 22WITH raw_events AS ( 23 SELECT ref AS upid, MIN(ts) AS ts 24 FROM instants 25 WHERE name = 'mem.lmk' AND ref_type = 'upid' 26 GROUP BY 1 27) 28SELECT 29 raw_events.ts, 30 raw_events.upid, 31 oom_scores.oom_score_val AS score 32FROM raw_events 33LEFT JOIN oom_score_span oom_scores 34 ON (raw_events.upid = oom_scores.upid AND 35 raw_events.ts >= oom_scores.ts AND 36 raw_events.ts < oom_scores.ts + oom_scores.dur) 37ORDER BY 1; 38 39DROP VIEW IF EXISTS android_lmk_event; 40CREATE VIEW android_lmk_event AS 41WITH raw_events AS ( 42 SELECT 43 ts, 44 LEAD(ts) OVER (ORDER BY ts) - ts AS dur, 45 CAST(value AS INTEGER) AS pid 46 FROM counter c 47 JOIN counter_track t ON t.id = c.track_id 48 WHERE t.name = 'kill_one_process' 49 UNION ALL 50 SELECT 51 slice.ts, 52 slice.dur, 53 CAST(STR_SPLIT(slice.name, ",", 1) AS INTEGER) AS pid 54 FROM slice 55 WHERE slice.name GLOB 'lmk,*' 56), 57lmks_with_proc_name AS ( 58 SELECT 59 *, 60 process.name as process_name 61 FROM raw_events 62 LEFT JOIN process ON 63 process.pid = raw_events.pid 64 AND (raw_events.ts >= process.start_ts OR process.start_ts IS NULL) 65 AND (raw_events.ts < process.end_ts OR process.end_ts IS NULL) 66 WHERE raw_events.pid != 0 67) 68SELECT 69 'slice' as track_type, 70 'Low Memory Kills (LMKs)' as track_name, 71 ts, 72 dur, 73 CASE 74 WHEN process_name IS NULL THEN printf('Process %d', lmk.pid) 75 ELSE printf('%s (pid: %d)', process_name, lmk.pid) 76 END AS slice_name 77FROM lmks_with_proc_name as lmk; 78 79DROP VIEW IF EXISTS android_lmk_output; 80CREATE VIEW android_lmk_output AS 81WITH lmk_counts AS ( 82 SELECT score, COUNT(1) AS count 83 FROM lmk_events 84 GROUP BY score 85) 86SELECT AndroidLmkMetric( 87 'total_count', (SELECT COUNT(1) FROM lmk_events), 88 'by_oom_score', ( 89 SELECT 90 RepeatedField(AndroidLmkMetric_ByOomScore( 91 'oom_score_adj', score, 92 'count', count 93 )) 94 FROM lmk_counts 95 WHERE score IS NOT NULL 96 ), 97 'oom_victim_count', ( 98 SELECT COUNT(1) FROM instants WHERE name = 'mem.oom_kill' 99 ) 100); 101