| -- |
| -- Copyright 2020 The Android Open Source Project |
| -- |
| -- Licensed under the Apache License, Version 2.0 (the 'License'); |
| -- you may not use this file except in compliance with the License. |
| -- You may obtain a copy of the License at |
| -- |
| -- https://www.apache.org/licenses/LICENSE-2.0 |
| -- |
| -- Unless required by applicable law or agreed to in writing, software |
| -- distributed under the License is distributed on an 'AS IS' BASIS, |
| -- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| -- See the License for the specific language governing permissions and |
| -- limitations under the License. |
| -- |
| |
| -- This is a templated metric that takes 3 parameters: |
| -- input: name of a table/view which must have columns: id, ts, dur and a |
| -- "category" column |
| -- output: name of the view that will be created |
| -- category: name of the category column in the input table, which will be |
| -- preserved in the output |
| |
| SELECT RUN_METRIC('chrome/chrome_processes.sql') ; |
| |
| -- CPU time slices for Chrome threads. |
| DROP VIEW IF EXISTS chrome_cpu_slices; |
| CREATE VIEW chrome_cpu_slices AS |
| SELECT counters.id AS counter_id, |
| track_id, |
| ts, |
| lead(ts) OVER ( |
| PARTITION BY track_id |
| ORDER BY ts |
| ) - ts AS dur, |
| CAST( |
| lead(value) OVER ( |
| PARTITION BY track_id |
| ORDER BY ts |
| ) - value AS "INT64" |
| ) AS cpu_dur |
| FROM counters, |
| ( |
| SELECT thread_counter_track.id |
| FROM chrome_thread |
| JOIN thread_counter_track ON chrome_thread.utid = thread_counter_track.utid |
| ) AS t |
| WHERE t.id = track_id; |
| |
| DROP TABLE IF EXISTS {{input}}_cpu_time; |
| CREATE VIRTUAL TABLE {{input}}_cpu_time USING SPAN_JOIN( |
| {{input}}, |
| chrome_cpu_slices PARTITIONED track_id |
| ); |
| |
| -- View containing the CPU time used (across all cores) for each category slice |
| -- from input. |
| -- This will slightly overestimate the CPU time for some category slices as the |
| -- cpu time slices don't always line up with the category slices. However the |
| -- CPU slices are small enough this makes very little difference. |
| DROP VIEW IF EXISTS {{output}}; |
| CREATE VIEW {{output}} AS |
| SELECT s.id, |
| s.ts, |
| s.dur, |
| s.{{category}}, |
| SUM(cpu_dur) AS cpu_dur |
| FROM {{input}}_cpu_time r |
| JOIN {{input}} s |
| WHERE r.id = s.id |
| GROUP BY r.id; |