1/*
2 * Copyright (C) 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 *      http://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
17-- use the 'launching: $process_name' async slice to figure out launch duration.
18DROP VIEW IF EXISTS launch_durations_named;
19
20CREATE VIEW launch_durations_named AS
21WITH
22    launch_traces_raw AS (
23        SELECT *
24        FROM tracing_mark_write_split AS tmw,
25             raw_ftrace_entries AS rfe
26        WHERE atrace_message LIKE 'launching: %' AND rfe.id = tmw.raw_ftrace_entry_id
27    ),
28    launch_traces_joined AS (
29        SELECT started.timestamp AS started_timestamp,
30               finished.timestamp AS finished_timestamp,
31               started.id AS started_id,
32               finished.id AS finished_id,
33               SUBSTR(started.atrace_message, 12) AS proc_name   -- crop out "launching: " from the string.
34        FROM launch_traces_raw AS started,
35             launch_traces_raw AS finished
36        -- async slices ('S' -> 'F') have matching counters given the same PID.
37        WHERE started.atrace_type == 'S'
38              AND finished.atrace_type == 'F'
39              AND started.atrace_count == finished.atrace_count
40              AND started.atrace_pid == finished.atrace_pid
41    )
42SELECT * from launch_traces_joined;
43
44SELECT * FROM launch_durations_named;
45