76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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* Copyright (c) 2024 David Vernet <dvernet@meta.com>
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*/
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#include <bpf/bpf.h>
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#include <pthread.h>
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#include <scx/common.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "maximal.bpf.skel.h"
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#include "scx_test.h"
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static struct maximal *skel;
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static pthread_t threads[2];
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bool force_exit = false;
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static enum scx_test_status setup(void **ctx)
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{
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skel = maximal__open_and_load();
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if (!skel) {
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SCX_ERR("Failed to open and load skel");
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return SCX_TEST_FAIL;
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}
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return SCX_TEST_PASS;
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}
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static void *do_reload_loop(void *arg)
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{
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u32 i;
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for (i = 0; i < 1024 && !force_exit; i++) {
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struct bpf_link *link;
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link = bpf_map__attach_struct_ops(skel->maps.maximal_ops);
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if (link)
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bpf_link__destroy(link);
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}
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return NULL;
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}
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static enum scx_test_status run(void *ctx)
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{
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int err;
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void *ret;
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err = pthread_create(&threads[0], NULL, do_reload_loop, NULL);
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SCX_FAIL_IF(err, "Failed to create thread 0");
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err = pthread_create(&threads[1], NULL, do_reload_loop, NULL);
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SCX_FAIL_IF(err, "Failed to create thread 1");
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SCX_FAIL_IF(pthread_join(threads[0], &ret), "thread 0 failed");
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SCX_FAIL_IF(pthread_join(threads[1], &ret), "thread 1 failed");
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return SCX_TEST_PASS;
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}
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static void cleanup(void *ctx)
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{
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force_exit = true;
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maximal__destroy(skel);
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}
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struct scx_test reload_loop = {
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.name = "reload_loop",
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.description = "Stress test loading and unloading schedulers repeatedly in a tight loop",
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.setup = setup,
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.run = run,
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.cleanup = cleanup,
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};
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REGISTER_SCX_TEST(&reload_loop)
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