blob: 7bd9845dee3dffd0a2631dbe5c70f005704dad1d [file] [log] [blame]
/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.CPUTimelineRecord = class CPUTimelineRecord extends WI.TimelineRecord
{
constructor({timestamp, usage, threads})
{
super(WI.TimelineRecord.Type.CPU, timestamp - CPUTimelineRecord.samplingRatePerSecond, timestamp);
console.assert(typeof timestamp === "number");
console.assert(typeof usage === "number");
console.assert(usage >= 0);
console.assert(threads === undefined || Array.isArray(threads));
this._timestamp = timestamp;
this._usage = usage;
this._threads = threads || [];
this._mainThreadUsage = 0;
this._webkitThreadUsage = 0;
this._workerThreadUsage = 0;
this._unknownThreadUsage = 0;
this._workersData = null;
for (let thread of this._threads) {
if (thread.type === InspectorBackend.Enum.CPUProfiler.ThreadInfoType.Main) {
console.assert(!this._mainThreadUsage, "There should only be one main thread.");
this._mainThreadUsage += thread.usage;
continue;
}
if (thread.type === InspectorBackend.Enum.CPUProfiler.ThreadInfoType.WebKit) {
if (thread.targetId) {
if (!this._workersData)
this._workersData = [];
this._workersData.push(thread);
this._workerThreadUsage += thread.usage;
continue;
}
this._webkitThreadUsage += thread.usage;
continue;
}
this._unknownThreadUsage += thread.usage;
}
}
// Static
static get samplingRatePerSecond()
{
// 500ms. This matches the ResourceUsageThread sampling frequency in the backend.
return 0.5;
}
// Import / Export
static async fromJSON(json)
{
return new WI.CPUTimelineRecord(json);
}
toJSON()
{
return {
type: this.type,
timestamp: this._timestamp,
usage: this._usage,
threads: this._threads,
};
}
// Public
get timestamp() { return this._timestamp; }
get usage() { return this._usage; }
get unadjustedStartTime() { return this._timestamp; }
get mainThreadUsage() { return this._mainThreadUsage; }
get webkitThreadUsage() { return this._webkitThreadUsage; }
get workerThreadUsage() { return this._workerThreadUsage; }
get unknownThreadUsage() { return this._unknownThreadUsage; }
get workersData() { return this._workersData; }
adjustStartTime(startTime)
{
console.assert(startTime < this._endTime);
this._startTime = startTime;
}
};