• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1#!/usr/bin/env python3
2# Copyright (C) 2021 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16# Discarded events that do not get to GPU are invisible for UMA metric and
17# therefore should be excluded in trace-based metric. This tests ensures that's
18# the case.
19
20from os import sys
21
22import synth_common
23
24from synth_common import ms_to_ns
25trace = synth_common.create_trace()
26
27
28class Helper:
29
30  def __init__(self, trace, start_id, start_gesture_id):
31    self.trace = trace
32    self.id = start_id
33    self.gesture_id = start_gesture_id
34
35  def begin(self, from_ms, dur_ms):
36    self.trace.add_input_latency_event_slice(
37        "GestureScrollBegin",
38        ts=ms_to_ns(from_ms),
39        dur=ms_to_ns(dur_ms),
40        track=self.id,
41        trace_id=self.id,
42        gesture_scroll_id=self.gesture_id,
43    )
44    self.id += 1
45
46  def update(self, from_ms, dur_ms, gets_to_gpu=True):
47    self.trace.add_input_latency_event_slice(
48        "GestureScrollUpdate",
49        ts=ms_to_ns(from_ms),
50        dur=ms_to_ns(dur_ms),
51        track=self.id,
52        trace_id=self.id,
53        gesture_scroll_id=self.gesture_id,
54        gets_to_gpu=gets_to_gpu,
55        is_coalesced=False,
56    )
57    self.id += 1
58
59  def end(self, from_ms, dur_ms):
60    self.trace.add_input_latency_event_slice(
61        "GestureScrollEnd",
62        ts=ms_to_ns(from_ms),
63        dur=ms_to_ns(dur_ms),
64        track=self.id,
65        trace_id=self.id,
66        gesture_scroll_id=self.gesture_id)
67    self.id += 1
68    self.gesture_id += 1
69
70
71helper = Helper(trace, start_id=1234, start_gesture_id=5678)
72
73helper.begin(from_ms=0, dur_ms=10)
74helper.update(from_ms=15, dur_ms=10)
75# The next update should be recognized as janky
76helper.update(from_ms=30, dur_ms=30)
77helper.end(from_ms=70, dur_ms=10)
78
79helper.begin(from_ms=100, dur_ms=10)
80helper.update(from_ms=115, dur_ms=10)
81# The next update doesn't get to GPU, therefore would not be a part of jank
82# calculation
83helper.update(from_ms=130, dur_ms=30, gets_to_gpu=False)
84helper.end(from_ms=170, dur_ms=10)
85
86sys.stdout.buffer.write(trace.trace.SerializeToString())
87