third_party/perfetto/protos/perfetto/metrics/chrome/scroll_jank.proto

/*
 * Copyright (C) 2021 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.
 */

syntax = "proto2";

package perfetto.protos;

import "protos/perfetto/metrics/custom_options.proto";

message ScrollJank {
  // The percentage of time we consider janky of the total time spent scrolling
  // during the trace. I.E. approximately equal to |scroll_jank_ms|/|scroll_ms|.
  optional double scroll_jank_percentage = 1 [(unit) = "n%_smallerIsBetter"];
  optional double scroll_ms = 2 [(unit) = "ms_biggerIsBetter"];
  optional double scroll_processing_ms = 3 [(unit) = "ms_biggerIsBetter"];
  optional double scroll_jank_processing_ms = 4 [(unit) = "ms_smallerIsBetter"];
  optional int64 num_scroll_update_count = 5 [(unit) = "count_biggerIsBetter"];
  optional int64 num_scroll_update_jank_count = 6
      [(unit) = "count_smallerIsBetter"];
  optional double scroll_jank_budget_ms = 7 [(unit) = "ms_smallerIsBetter"];
}