2 * sync stress test: merging
3 * Copyright 2015-2016 Collabora Ltd.
5 * Based on the implementation from the Android Open Source Project,
7 * Copyright 2012 Google, Inc
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36 int test_merge_stress_random_merge(void)
39 int timeline_count = 32;
40 int merge_count = 1024 * 32;
41 int timelines[timeline_count];
42 int fence_map[timeline_count];
43 int fence, tmpfence, merged, valid;
44 int timeline, timeline_offset, sync_point;
48 for (i = 0; i < timeline_count; i++)
49 timelines[i] = sw_sync_timeline_create();
51 fence = sw_sync_fence_create(timelines[0], "fence", 0);
52 valid = sw_sync_fence_is_valid(fence);
53 ASSERT(valid, "Failure creating fence\n");
55 memset(fence_map, -1, sizeof(fence_map));
59 * Randomly create sync_points out of a fixed set of timelines,
60 * and merge them together
62 for (i = 0; i < merge_count; i++) {
63 /* Generate sync_point. */
64 timeline_offset = rand() % timeline_count;
65 timeline = timelines[timeline_offset];
68 /* Keep track of the latest sync_point in each timeline. */
69 if (fence_map[timeline_offset] == -1)
70 fence_map[timeline_offset] = sync_point;
71 else if (fence_map[timeline_offset] < sync_point)
72 fence_map[timeline_offset] = sync_point;
75 tmpfence = sw_sync_fence_create(timeline, "fence", sync_point);
76 merged = sync_merge("merge", tmpfence, fence);
77 sw_sync_fence_destroy(tmpfence);
78 sw_sync_fence_destroy(fence);
81 valid = sw_sync_fence_is_valid(merged);
82 ASSERT(valid, "Failure creating fence i\n");
86 for (i = 0; i < timeline_count; i++)
87 if (fence_map[i] != -1)
90 /* Confirm our map matches the fence. */
91 ASSERT(sync_fence_size(fence) == size,
92 "Quantity of elements not matching\n");
94 /* Trigger the merged fence */
95 for (i = 0; i < timeline_count; i++) {
96 if (fence_map[i] != -1) {
97 ret = sync_wait(fence, 0);
99 "Failure waiting on fence until timeout\n");
100 /* Increment the timeline to the last sync_point */
101 sw_sync_timeline_inc(timelines[i], fence_map[i]);
105 /* Check that the fence is triggered. */
106 ret = sync_wait(fence, 0);
107 ASSERT(ret > 0, "Failure triggering fence\n");
109 sw_sync_fence_destroy(fence);
111 for (i = 0; i < timeline_count; i++)
112 sw_sync_timeline_destroy(timelines[i]);