mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
![Emilio López](/assets/img/avatar_default.png)
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> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
/*
|
|
* 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"
|
|
|
|
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_map[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;
|
|
}
|