| -- |
| -- Copyright 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 |
| -- |
| -- https://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. |
| -- |
| -- This metric takes each flow event in a InputLatency::GestureScrollUpdate and |
| -- and computes the time from the ancestor_end of the current flow to the |
| -- ancestor_ts of the next flow event. This is a reasonable approximation of the |
| -- time we waited for the next step in the critical flow to start. |
| |
| -- Provides the scroll_flow_event table which gives us all the flow events with |
| -- associated GestureScrollUpdate events we care about and labels them janky or |
| -- not. |
| SELECT RUN_METRIC('chrome/gesture_flow_event_queuing_delay.sql', |
| 'prefix', 'scroll', |
| 'id_field', 'gesture_scroll_id'); |
