# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Adding a new metric? We have docs for that!
# https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/new_definitions_file.html

---
$schema: moz://mozilla.org/schemas/glean/metrics/2-0-0
$tags:
  - 'Core :: Layout'

performance.pageload:
  req_anim_frame_callback:
    type: timing_distribution
    time_unit: millisecond
    telemetry_mirror: PERF_REQUEST_ANIMATION_CALLBACK_PAGELOAD_MS
    description: >
      Time spent in milliseconds calling all request animation frame callbacks
      for a document before it has reached readystate complete.
      (Migrated from the geckoview metric of the same name.)
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7
    notification_emails:
      - dpalmeiro@mozilla.com
      - perf-telemetry-alerts@mozilla.com
    expires: never

  async_sheet_load:
    type: timing_distribution
    time_unit: millisecond
    description: >
      Time spent in milliseconds since a style sheet started loading async
      until it finished.
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1892660
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1892660
    data_sensitivity:
      - technical
    notification_emails:
      - emilio@mozilla.com
      - perf-telemetry-alerts@mozilla.com
    expires: 132

performance.responsiveness:
  req_anim_frame_callback:
    type: timing_distribution
    time_unit: millisecond
    telemetry_mirror: PERF_REQUEST_ANIMATION_CALLBACK_NON_PAGELOAD_MS
    description: >
      Time spent in milliseconds calling all request animation frame callbacks
      for a document after it has reached readystate complete.
      (Migrated from the geckoview metric of the same name.)
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7
    notification_emails:
      - dpalmeiro@mozilla.com
      - perf-telemetry-alerts@mozilla.com
    expires: never
