This test is based on the libsync test suite from Android. This commit includes a test to stress merge operations.
Signed-off-by: Emilio López emilio.lopez@collabora.co.uk --- tools/testing/selftests/sync/Makefile | 1 + tools/testing/selftests/sync/sync_stress_merge.c | 116 +++++++++++++++++++++++ tools/testing/selftests/sync/sync_test.c | 1 + tools/testing/selftests/sync/synctest.h | 3 + 4 files changed, 121 insertions(+) create mode 100644 tools/testing/selftests/sync/sync_stress_merge.c
diff --git a/tools/testing/selftests/sync/Makefile b/tools/testing/selftests/sync/Makefile index 910e3f9..6e05749 100644 --- a/tools/testing/selftests/sync/Makefile +++ b/tools/testing/selftests/sync/Makefile @@ -20,6 +20,7 @@ TESTS += sync_merge.o TESTS += sync_wait.o TESTS += sync_stress_parallelism.o TESTS += sync_stress_consumer.o +TESTS += sync_stress_merge.o
sync_test: $(SRC) $(TESTS)
diff --git a/tools/testing/selftests/sync/sync_stress_merge.c b/tools/testing/selftests/sync/sync_stress_merge.c new file mode 100644 index 0000000..0e57360 --- /dev/null +++ b/tools/testing/selftests/sync/sync_stress_merge.c @@ -0,0 +1,116 @@ +/* + * sync stress test: merging + * Copyright 2015-2016 Collabora Ltd. + * + * Based on the implementation from the Android Open Source Project, + * + * Copyright 2012 Google, Inc + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include "sync.h" +#include "sw_sync.h" +#include "synctest.h" + +static int fence_map[1024 * 32]; + +int test_merge_stress_random_merge(void) +{ + int i, size, ret; + int timeline_count = 32; + int merge_count = 1024 * 32; + int timelines[timeline_count]; + int fence, tmpfence, merged, valid; + int timeline, timeline_offset, sync_point; + + srand(time(NULL)); + + for (i = 0; i < timeline_count; i++) + timelines[i] = sw_sync_timeline_create(); + + fence = sw_sync_fence_create(timelines[0], "fence", 0); + valid = sw_sync_fence_is_valid(fence); + ASSERT(valid, "Failure creating fence\n"); + + memset(fence_map, -1, sizeof(fence_map)); + fence_map[0] = 0; + + /* + * Randomly create sync_points out of a fixed set of timelines, + * and merge them together + */ + for (i = 0; i < merge_count; i++) { + /* Generate sync_point. */ + timeline_offset = rand() % timeline_count; + timeline = timelines[timeline_offset]; + sync_point = rand(); + + /* Keep track of the latest sync_point in each timeline. */ + if (fence_map[timeline_offset] == -1) + fence_map[timeline_offset] = sync_point; + else if (fence_map[timeline_offset] < sync_point) + fence_map[timeline_offset] = sync_point; + + /* Merge */ + tmpfence = sw_sync_fence_create(timeline, "fence", sync_point); + merged = sync_merge("merge", tmpfence, fence); + sw_sync_fence_destroy(tmpfence); + sw_sync_fence_destroy(fence); + fence = merged; + + valid = sw_sync_fence_is_valid(merged); + ASSERT(valid, "Failure creating fence i\n"); + } + + size = 0; + for (i = 0; i < timeline_count; i++) + if (fence_map[i] != -1) + size++; + + /* Confirm our map matches the fence. */ + ASSERT(sync_fence_size(fence) == size, + "Quantity of elements not matching\n"); + + /* Trigger the merged fence */ + for (i = 0; i < timeline_count; i++) { + if (fence_map[i] != -1) { + ret = sync_wait(fence, 0); + ASSERT(ret == 0, + "Failure waiting on fence until timeout\n"); + /* Increment the timeline to the last sync_point */ + sw_sync_timeline_inc(timelines[i], fence_map[i]); + } + } + + /* Check that the fence is triggered. */ + ret = sync_wait(fence, 0); + ASSERT(ret > 0, "Failure triggering fence\n"); + + sw_sync_fence_destroy(fence); + + for (i = 0; i < timeline_count; i++) + sw_sync_timeline_destroy(timelines[i]); + + return 0; +} diff --git a/tools/testing/selftests/sync/sync_test.c b/tools/testing/selftests/sync/sync_test.c index 32f2534..9ea08d9 100644 --- a/tools/testing/selftests/sync/sync_test.c +++ b/tools/testing/selftests/sync/sync_test.c @@ -68,6 +68,7 @@ int main(void) err += RUN_TEST(test_fence_multi_timeline_wait); err += RUN_TEST(test_stress_two_threads_shared_timeline); err += RUN_TEST(test_consumer_stress_multi_producer_single_consumer); + err += RUN_TEST(test_merge_stress_random_merge);
if (err) printf("[FAIL]\tsync errors: %d\n", err); diff --git a/tools/testing/selftests/sync/synctest.h b/tools/testing/selftests/sync/synctest.h index a94b622..4e0e59f 100644 --- a/tools/testing/selftests/sync/synctest.h +++ b/tools/testing/selftests/sync/synctest.h @@ -60,4 +60,7 @@ int test_stress_two_threads_shared_timeline(void); /* Stress test - consumer */ int test_consumer_stress_multi_producer_single_consumer(void);
+/* Stress test - merging */ +int test_merge_stress_random_merge(void); + #endif