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// Copyright (C) 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
//
// http://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.
import {ColumnDef, ThreadStateExtra} from '../../common/aggregation_data';
import {Engine} from '../../common/engine';
import {NUM, NUM_NULL, STR_NULL} from '../../common/query_result';
import {Area, Sorting} from '../../common/state';
import {translateState} from '../../common/thread_state';
import {toNs} from '../../common/time';
import {globals} from '../../frontend/globals';
import {
Config,
THREAD_STATE_TRACK_KIND,
} from '../../tracks/thread_state';
import {AggregationController} from './aggregation_controller';
export class ThreadAggregationController extends AggregationController {
private utids?: number[];
setThreadStateUtids(tracks: string[]) {
this.utids = [];
for (const trackId of tracks) {
const track = globals.state.tracks[trackId];
// Track will be undefined for track groups.
if (track !== undefined && track.kind === THREAD_STATE_TRACK_KIND) {
this.utids.push((track.config as Config).utid);
}
}
}
async createAggregateView(engine: Engine, area: Area) {
await engine.query(`drop view if exists ${this.kind};`);
this.setThreadStateUtids(area.tracks);
if (this.utids === undefined || this.utids.length === 0) return false;
const query = `
create view ${this.kind} as
SELECT
process.name as process_name,
pid,
thread.name as thread_name,
tid,
state || ',' || IFNULL(io_wait, 'NULL') as concat_state,
sum(dur) AS total_dur,
sum(dur)/count(1) as avg_dur,
count(1) as occurrences
FROM process
JOIN thread USING(upid)
JOIN thread_state USING(utid)
WHERE utid IN (${this.utids}) AND
thread_state.ts + thread_state.dur > ${toNs(area.startSec)} AND
thread_state.ts < ${toNs(area.endSec)}
GROUP BY utid, concat_state
`;
await engine.query(query);
return true;
}
async getExtra(engine: Engine, area: Area): Promise<ThreadStateExtra|void> {
this.setThreadStateUtids(area.tracks);
if (this.utids === undefined || this.utids.length === 0) return;
const query =
`select state, io_wait as ioWait, sum(dur) as totalDur from process
JOIN thread USING(upid)
JOIN thread_state USING(utid)
WHERE utid IN (${this.utids}) AND thread_state.ts + thread_state.dur > ${
toNs(area.startSec)} AND
thread_state.ts < ${toNs(area.endSec)}
GROUP BY state, io_wait`;
const result = await engine.query(query);
const it = result.iter({
state: STR_NULL,
ioWait: NUM_NULL,
totalDur: NUM,
});
const summary: ThreadStateExtra = {
kind: 'THREAD_STATE',
states: [],
values: new Float64Array(result.numRows()),
totalMs: 0,
};
summary.totalMs = 0;
for (let i = 0; it.valid(); ++i, it.next()) {
const state = it.state == null ? undefined : it.state;
const ioWait = it.ioWait === null ? undefined : it.ioWait > 0;
summary.states.push(translateState(state, ioWait));
const ms = it.totalDur / 1000000;
summary.values[i] = ms;
summary.totalMs += ms;
}
return summary;
}
getColumnDefinitions(): ColumnDef[] {
return [
{
title: 'Process',
kind: 'STRING',
columnConstructor: Uint16Array,
columnId: 'process_name',
},
{
title: 'PID',
kind: 'NUMBER',
columnConstructor: Uint16Array,
columnId: 'pid',
},
{
title: 'Thread',
kind: 'STRING',
columnConstructor: Uint16Array,
columnId: 'thread_name',
},
{
title: 'TID',
kind: 'NUMBER',
columnConstructor: Uint16Array,
columnId: 'tid',
},
{
title: 'State',
kind: 'STATE',
columnConstructor: Uint16Array,
columnId: 'concat_state',
},
{
title: 'Wall duration (ms)',
kind: 'TIMESTAMP_NS',
columnConstructor: Float64Array,
columnId: 'total_dur',
sum: true,
},
{
title: 'Avg Wall duration (ms)',
kind: 'TIMESTAMP_NS',
columnConstructor: Float64Array,
columnId: 'avg_dur',
},
{
title: 'Occurrences',
kind: 'NUMBER',
columnConstructor: Uint16Array,
columnId: 'occurrences',
sum: true,
},
];
}
getTabName() {
return 'Thread States';
}
getDefaultSorting(): Sorting {
return {column: 'total_dur', direction: 'DESC'};
}
}
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