1
=== modified file 'tests/acceptance-tests/test_latency.cpp'
2
--- tests/acceptance-tests/test_latency.cpp	2016-12-21 08:59:11 +0000
3
+++ tests/acceptance-tests/test_latency.cpp	2016-12-21 08:59:11 +0000
4
@@ -353,6 +353,72 @@
5
353
        display.group.dump_latency();
353
        display.group.dump_latency();
6
354
}
354
}
7
355
355
8
356
TEST_F(ClientLatency, average_async_swap_latency_is_less_than_nbuffers)
9
357
{
10
358
    auto stream = mir_surface_get_buffer_stream(surface);
11
359
    auto const deadline = steady_clock::now() + 60s;
12
360
13
361
    while (stats.frames_composited() < test_frames &&
14
362
           steady_clock::now() < deadline)
15
363
    {
16
364
        auto submission_id = mir_debug_surface_current_buffer_id(surface);
17
365
        stats.record_submission(submission_id);
18
366
        mir_wait_for(mir_buffer_stream_swap_buffers(stream, NULL, NULL));
19
367
    }
20
368
21
369
    ASSERT_THAT(stats.frames_composited(), Ge(test_frames));
22
370
23
371
    if (server.get_options()->get<bool>(mtd::logging_opt))
24
372
        display.group.dump_latency();
25
373
26
374
    auto average_latency = display.group.average_latency();
27
375
28
376
    EXPECT_THAT(average_latency, Lt(expected_client_buffers));
29
377
}
30
378
31
379
TEST_F(ClientLatency, max_async_swap_latency_is_limited_to_nbuffers)
32
380
{
33
381
    auto stream = mir_surface_get_buffer_stream(surface);
34
382
    auto const deadline = steady_clock::now() + 60s;
35
383
36
384
    while (stats.frames_composited() < test_frames &&
37
385
           steady_clock::now() < deadline)
38
386
    {
39
387
        auto submission_id = mir_debug_surface_current_buffer_id(surface);
40
388
        stats.record_submission(submission_id);
41
389
        mir_wait_for(mir_buffer_stream_swap_buffers(stream, NULL, NULL));
42
390
    }
43
391
44
392
    ASSERT_THAT(stats.frames_composited(), Ge(test_frames));
45
393
46
394
    auto max_latency = display.group.max_latency();
47
395
    EXPECT_THAT(max_latency, Le(expected_client_buffers));
48
396
}
49
397
50
398
TEST_F(ClientLatency, async_swap_dropping_latency_is_closer_to_zero_than_one)
51
399
{
52
400
    auto stream = mir_surface_get_buffer_stream(surface);
53
401
    mir_buffer_stream_set_swapinterval(stream, 0);
54
402
    stats.swap_interval = 0;
55
403
    auto const deadline = steady_clock::now() + 60s;
56
404
57
405
    while (stats.frames_composited() < test_frames &&
58
406
           steady_clock::now() < deadline)
59
407
    {
60
408
        auto submission_id = mir_debug_surface_current_buffer_id(surface);
61
409
        stats.record_submission(submission_id);
62
410
        mir_wait_for(mir_buffer_stream_swap_buffers(stream, NULL, NULL));
63
411
    }
64
412
65
413
    ASSERT_THAT(stats.frames_composited(), Ge(test_frames));
66
414
67
415
    auto average_latency = display.group.average_latency();
68
416
    EXPECT_THAT(average_latency, Lt(0.5f));
69
417
70
418
    if (server.get_options()->get<bool>(mtd::logging_opt))
71
419
        display.group.dump_latency();
72
420
}
73
421
74
356
TEST_F(ClientLatency, throttled_input_rate_yields_lower_latency)
422
TEST_F(ClientLatency, throttled_input_rate_yields_lower_latency)
75
357
{
423
{
76
358
    int const throttled_input_rate = refresh_rate * 3 / 4;
424
    int const throttled_input_rate = refresh_rate * 3 / 4;
Status:	Merged
Approved by:	Daniel van Vugt on 2016-12-23
Approved revision:	no longer in the source branch.
Merged at revision:	3898
Proposed branch:	lp:~vanvugt/mir/enhance-ClientLatency-tests-2
Merge into:	lp:mir
Prerequisite:	lp:~vanvugt/mir/enhance-ClientLatency-tests-1
Diff against target:	76 lines (+66/-0) 1 file modified tests/acceptance-tests/test_latency.cpp (+66/-0)
To merge this branch:	bzr merge lp:~vanvugt/mir/enhance-ClientLatency-tests-2
Related bugs:	Link a bug report
Reviewer	Review Type	Date Requested	Status
Cemil Azizoglu (community)		2016-12-21	Approve on 2016-12-22
Mir CI Bot	continuous-integration		Approve on 2016-12-21
Review via email: mp+313673@code.launchpad.net