Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
|
|
* Copyright (c) 2024 David Vernet <dvernet@meta.com>
|
|
*/
|
|
#include <bpf/bpf.h>
|
|
#include <pthread.h>
|
|
#include <scx/common.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
#include "maximal.bpf.skel.h"
|
|
#include "scx_test.h"
|
|
|
|
static struct maximal *skel;
|
|
static pthread_t threads[2];
|
|
|
|
bool force_exit = false;
|
|
|
|
static enum scx_test_status setup(void **ctx)
|
|
{
|
|
skel = maximal__open();
|
|
SCX_FAIL_IF(!skel, "Failed to open");
|
|
SCX_ENUM_INIT(skel);
|
|
SCX_FAIL_IF(maximal__load(skel), "Failed to load skel");
|
|
|
|
return SCX_TEST_PASS;
|
|
}
|
|
|
|
static void *do_reload_loop(void *arg)
|
|
{
|
|
u32 i;
|
|
|
|
for (i = 0; i < 1024 && !force_exit; i++) {
|
|
struct bpf_link *link;
|
|
|
|
link = bpf_map__attach_struct_ops(skel->maps.maximal_ops);
|
|
if (link)
|
|
bpf_link__destroy(link);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static enum scx_test_status run(void *ctx)
|
|
{
|
|
int err;
|
|
void *ret;
|
|
|
|
err = pthread_create(&threads[0], NULL, do_reload_loop, NULL);
|
|
SCX_FAIL_IF(err, "Failed to create thread 0");
|
|
|
|
err = pthread_create(&threads[1], NULL, do_reload_loop, NULL);
|
|
SCX_FAIL_IF(err, "Failed to create thread 1");
|
|
|
|
SCX_FAIL_IF(pthread_join(threads[0], &ret), "thread 0 failed");
|
|
SCX_FAIL_IF(pthread_join(threads[1], &ret), "thread 1 failed");
|
|
|
|
return SCX_TEST_PASS;
|
|
}
|
|
|
|
static void cleanup(void *ctx)
|
|
{
|
|
force_exit = true;
|
|
maximal__destroy(skel);
|
|
}
|
|
|
|
struct scx_test reload_loop = {
|
|
.name = "reload_loop",
|
|
.description = "Stress test loading and unloading schedulers repeatedly in a tight loop",
|
|
.setup = setup,
|
|
.run = run,
|
|
.cleanup = cleanup,
|
|
};
|
|
REGISTER_SCX_TEST(&reload_loop)
|