<!--
Copyright 2021 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<!--
This file is used to generate a comprehensive list of XR histograms
along with a detailed description for each histogram.
For best practices on writing histogram descriptions, see
https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md
Please follow the instructions in the OWNERS file in this directory to find a
reviewer. If no OWNERS file exists, please consider signing up at
go/reviewing-metrics (Googlers only), as all subdirectories are expected to
have an OWNERS file. As a last resort you can send the CL to
[email protected].
-->
<histogram-configuration>
<histograms>
<histogram name="VRSessionTime.WebVR" units="ms" expires_after="2025-01-05">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
The duration of the VR session. Logged when a new disjoint session has
begun, or when the session has ended in a non-continuable way. Restricted to
the period that the browser is displaying WebVR (XR) content.
</summary>
</histogram>
<histogram name="VRViewerType" enum="VRViewerType" expires_after="2025-01-26">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>The type of headset being used for VR.</summary>
</histogram>
<histogram name="XR.ARCore.DepthBufferSizeInPixels" units="pixels"
expires_after="2025-02-02">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Recorded on every frame for as long as depth data is requested in an XR
session backed by ARCore device. Measures the number of pixels (width *
height) in the depth buffer obtained from ARCore.
</summary>
</histogram>
<histogram name="XR.ARCore.ImageCopyFastPath" enum="Boolean"
expires_after="2024-12-22">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Recorded every time an image is copied out of ArCore. Measures if we take
the "fast" direct copy path or have to copy pixel-by-pixel.
</summary>
</histogram>
<histogram name="XR.RuntimeUsed" enum="XRDeviceId" expires_after="2025-01-07">
<owner>[email protected]</owner>
<owner>[email protected]</owner>
<summary>
Indicates which XR runtime was used for a session. Recorded when the session
was successfully created.
</summary>
</histogram>
</histograms>
</histogram-configuration>
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