opendev/gerrit
Code Issues Proposed changes

Revert "Report low FPS to analytics"

Browse Source 
This reverts commit f0f3b29142.

Reason for revert: We don't use this metric and it has high impact on CPU

Change-Id: Ic125966c765ff4625d6e1d34315f4e0d0b442be3
This commit is contained in:
Milutin Kristofic
2019-09-24 10:03:49 +00:00
parent 8e8c9d114d
commit 452f2cb569
6 changed files with 0 additions and 162 deletions
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61
polygerrit-ui/app/elements/core/gr-reporting/gr-jank-detector.js
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@@ -1,61 +0,0 @@
/**
* @license
* Copyright (C) 2016 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.
*/
(function() {
'use strict';
const JANK_SLEEP_TIME_MS = 1000;
const GrJankDetector = {
// Slowdowns counter.
jank: 0,
fps: 0,
_lastFrameTime: 0,
start() {
this._requestAnimationFrame(this._detect.bind(this));
},
_requestAnimationFrame(callback) {
window.requestAnimationFrame(callback);
},
_detect(now) {
if (this._lastFrameTime === 0) {
this._lastFrameTime = now;
this.fps = 0;
this._requestAnimationFrame(this._detect.bind(this));
return;
}
const fpsNow = 1000/(now - this._lastFrameTime);
this._lastFrameTime = now;
// Calculate moving average within last 3 measurements.
this.fps = this.fps === 0 ? fpsNow : ((this.fps * 2 + fpsNow) / 3);
if (this.fps > 10) {
this._requestAnimationFrame(this._detect.bind(this));
} else {
this.jank++;
console.warn('JANK', this.jank);
this._lastFrameTime = 0;
window.setTimeout(
() => this._requestAnimationFrame(this._detect.bind(this)),
JANK_SLEEP_TIME_MS);
}
},
};
window.GrJankDetector = GrJankDetector;
})();

80
polygerrit-ui/app/elements/core/gr-reporting/gr-jank-detector_test.html
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@@ -1,80 +0,0 @@
<!DOCTYPE html>
<!--
@license
Copyright (C) 2018 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.
-->
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-jank-detector</title>
<script src="/test/common-test-setup.js"></script>
<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>
<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="gr-jank-detector.js"></script>
<script>
suite('gr-jank-detector tests', () => {
let sandbox;
let clock;
let instance;
const NOW_TIME = 100;
setup(() => {
sandbox = sinon.sandbox.create();
clock = sinon.useFakeTimers(NOW_TIME);
instance = GrJankDetector;
instance._lastFrameTime = 0;
sandbox.stub(instance, '_requestAnimationFrame');
});
teardown(() => {
sandbox.restore();
});
test('start() installs frame callback', () => {
sandbox.stub(instance, '_detect');
instance._requestAnimationFrame.callsArg(0);
instance.start();
assert.isTrue(instance._detect.calledOnce);
});
test('measures fps', () => {
instance._detect(10);
instance._detect(30);
assert.equal(instance.fps, 50);
});
test('detects jank', () => {
let now = 10;
instance._detect(now);
const fastFrame = () => instance._detect(now += 20);
const slowFrame = () => instance._detect(now += 300);
fastFrame();
assert.equal(instance.jank, 0);
_.times(4, slowFrame);
assert.equal(instance.jank, 0);
instance._requestAnimationFrame.reset();
slowFrame();
assert.equal(instance.jank, 1);
assert.isFalse(instance._requestAnimationFrame.called);
clock.tick(1000);
assert.isTrue(instance._requestAnimationFrame.called);
});
});
</script>

1
polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.html
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@@ -18,6 +18,5 @@ limitations under the License.
<link rel="import" href="/bower_components/polymer/polymer.html">
<dom-module id="gr-reporting">
<script src="gr-jank-detector.js"></script>
<script src="gr-reporting.js"></script>
</dom-module>

15
polygerrit-ui/app/elements/core/gr-reporting/gr-reporting.js
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@@ -49,14 +49,6 @@
STARTED_HIDDEN: 'hidden',
};
// Frame rate related constants.
const JANK = {
TYPE: 'lifecycle',
CATEGORY: 'UI Latency',
// Reported events - alphabetize below.
COUNT: 'Jank count',
};
// Navigation reporting constants.
const NAVIGATION = {
TYPE: 'nav-report',
@@ -150,8 +142,6 @@
};
catchErrors();
GrJankDetector.start();
// The Polymer pass of JSCompiler requires this to be reassignable
// eslint-disable-next-line prefer-const
let GrReporting = Polymer({
@@ -291,11 +281,6 @@
},
beforeLocationChanged() {
if (GrJankDetector.jank > 0) {
this.reporter(
JANK.TYPE, JANK.CATEGORY, JANK.COUNT, GrJankDetector.jank);
GrJankDetector.jank = 0;
}
for (const prop of Object.keys(this._baselines)) {
delete this._baselines[prop];
}

4
polygerrit-ui/app/elements/core/gr-reporting/gr-reporting_test.html
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@@ -95,11 +95,7 @@ limitations under the License.
test('beforeLocationChanged', () => {
element._baselines['garbage'] = 'monster';
sandbox.stub(element, 'time');
GrJankDetector.jank = 42;
element.beforeLocationChanged();
assert.equal(GrJankDetector.jank, 0);
assert.isTrue(element.reporter.calledWithExactly(
'lifecycle', 'UI Latency', 'Jank count', 42));
assert.isTrue(element.time.calledWithExactly('DashboardDisplayed'));
assert.isTrue(element.time.calledWithExactly('ChangeDisplayed'));
assert.isTrue(element.time.calledWithExactly('ChangeFullyLoaded'));

1
polygerrit-ui/app/test/index.html
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@@ -100,7 +100,6 @@ limitations under the License.
'core/gr-keyboard-shortcuts-dialog/gr-keyboard-shortcuts-dialog_test.html',
'core/gr-main-header/gr-main-header_test.html',
'core/gr-navigation/gr-navigation_test.html',
'core/gr-reporting/gr-jank-detector_test.html',
'core/gr-reporting/gr-reporting_test.html',
'core/gr-router/gr-router_test.html',
'core/gr-search-bar/gr-search-bar_test.html',