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/linux-6.12.1/tools/perf/bench/
Dfutex-requeue.c53 OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
77 params.nthreads, in print_summary()
131 threads_starting = params.nthreads; in block_threads()
138 for (i = 0; i < params.nthreads; i++) { in block_threads()
191 if (!params.nthreads) in bench_futex_requeue()
192 params.nthreads = perf_cpu_map__nr(cpu); in bench_futex_requeue()
194 worker = calloc(params.nthreads, sizeof(*worker)); in bench_futex_requeue()
201 if (params.nrequeue > params.nthreads) in bench_futex_requeue()
202 params.nrequeue = params.nthreads; in bench_futex_requeue()
205 params.nrequeue = params.nthreads; in bench_futex_requeue()
[all …]
Dbreakpoint.c22 unsigned int nthreads; member
26 .nthreads = 1,
33 OPT_UINTEGER('t', "threads", &thread_params.nthreads, "Specify amount of threads"),
91 threads = calloc(thread_params.nthreads, sizeof(threads[0])); in breakpoint_thread()
97 for (i = 0; i < thread_params.nthreads; i++) { in breakpoint_thread()
102 futex_wake(&done, thread_params.nthreads, 0); in breakpoint_thread()
103 for (i = 0; i < thread_params.nthreads; i++) in breakpoint_thread()
161 (double)result_usec / bench_repeat / thread_params.nthreads); in bench_breakpoint_thread()
164 thread_params.nthreads * thread_params.nparallel); in bench_breakpoint_thread()
200 unsigned int i, nthreads, result_usec, done = 0; in bench_breakpoint_enable() local
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Dfutex-wake.c53 OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
93 params.nthreads, in print_summary()
104 threads_starting = params.nthreads; in block_threads()
111 for (i = 0; i < params.nthreads; i++) { in block_threads()
166 if (!params.nthreads) in bench_futex_wake()
167 params.nthreads = perf_cpu_map__nr(cpu); in bench_futex_wake()
169 worker = calloc(params.nthreads, sizeof(*worker)); in bench_futex_wake()
178 getpid(), params.nthreads, params.fshared ? "shared":"private", in bench_futex_wake()
205 while (nwoken != params.nthreads) in bench_futex_wake()
216 j + 1, nwoken, params.nthreads, in bench_futex_wake()
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Dfutex-wake-parallel.c63 OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
155 threads_starting = params.nthreads; in block_threads()
162 for (i = 0; i < params.nthreads; i++) { in block_threads()
203 params.nthreads, waketime_avg / USEC_PER_MSEC, in print_run()
218 params.nthreads, in print_summary()
271 if (!params.nthreads) in bench_futex_wake_parallel()
272 params.nthreads = perf_cpu_map__nr(cpu); in bench_futex_wake_parallel()
275 if (params.nwakes > params.nthreads || in bench_futex_wake_parallel()
277 params.nwakes = params.nthreads; in bench_futex_wake_parallel()
279 if (params.nthreads % params.nwakes) in bench_futex_wake_parallel()
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Dfutex-lock-pi.c48 OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
128 threads_starting = params.nthreads; in create_threads()
134 for (i = 0; i < params.nthreads; i++) { in create_threads()
189 if (!params.nthreads) in bench_futex_lock_pi()
190 params.nthreads = perf_cpu_map__nr(cpu); in bench_futex_lock_pi()
192 worker = calloc(params.nthreads, sizeof(*worker)); in bench_futex_lock_pi()
200 getpid(), params.nthreads, params.runtime); in bench_futex_lock_pi()
207 threads_starting = params.nthreads; in bench_futex_lock_pi()
221 for (i = 0; i < params.nthreads; i++) { in bench_futex_lock_pi()
232 for (i = 0; i < params.nthreads; i++) { in bench_futex_lock_pi()
Dfutex-hash.c56 OPT_UINTEGER('t', "threads", &params.nthreads, "Specify amount of threads"),
155 if (!params.nthreads) /* default to the number of CPUs */ in bench_futex_hash()
156 params.nthreads = perf_cpu_map__nr(cpu); in bench_futex_hash()
158 worker = calloc(params.nthreads, sizeof(*worker)); in bench_futex_hash()
166 … getpid(), params.nthreads, params.nfutexes, params.fshared ? "shared":"private", params.runtime); in bench_futex_hash()
173 threads_starting = params.nthreads; in bench_futex_hash()
182 for (i = 0; i < params.nthreads; i++) { in bench_futex_hash()
216 for (i = 0; i < params.nthreads; i++) { in bench_futex_hash()
227 for (i = 0; i < params.nthreads; i++) { in bench_futex_hash()
Depoll-wait.c91 static unsigned int nthreads = 0; variable
128 OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
317 for (i = 0; i < nthreads; i++) { in do_threads()
394 shuffle((void *)worker, nthreads, sizeof(*worker)); in writerfn()
397 for (i = 0; i < nthreads; i++) { in writerfn()
468 if (!nthreads) in bench_epoll_wait()
469 nthreads = perf_cpu_map__nr(cpu) - 1; in bench_epoll_wait()
471 worker = calloc(nthreads, sizeof(*worker)); in bench_epoll_wait()
478 rl.rlim_cur = rl.rlim_max = nfds * nthreads * 2 + 50; in bench_epoll_wait()
486 getpid(), nthreads, oneshot ? " (EPOLLONESHOT semantics)": "", nfds, nsecs); in bench_epoll_wait()
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Depoll-ctl.c36 static unsigned int nthreads = 0; variable
75 OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
240 for (i = 0; i < nthreads; i++) { in do_threads()
349 if (!nthreads) in bench_epoll_ctl()
350 nthreads = perf_cpu_map__nr(cpu); in bench_epoll_ctl()
352 worker = calloc(nthreads, sizeof(*worker)); in bench_epoll_ctl()
358 rl.rlim_cur = rl.rlim_max = nfds * nthreads * 2 + 50; in bench_epoll_ctl()
366 getpid(), nthreads, nfds, nsecs); in bench_epoll_ctl()
375 threads_starting = nthreads; in bench_epoll_ctl()
391 for (i = 0; i < nthreads; i++) { in bench_epoll_ctl()
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/linux-6.12.1/tools/testing/selftests/mm/
Dmigration.c27 int nthreads; in FIXTURE() local
37 self->nthreads = numa_num_task_cpus() - 1; in FIXTURE_SETUP()
51 self->threads = malloc(self->nthreads * sizeof(*self->threads)); in FIXTURE_SETUP()
53 self->pids = malloc(self->nthreads * sizeof(*self->pids)); in FIXTURE_SETUP()
128 if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
136 for (i = 0; i < self->nthreads - 1; i++)
141 for (i = 0; i < self->nthreads - 1; i++)
154 if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
162 for (i = 0; i < self->nthreads - 1; i++) {
176 for (i = 0; i < self->nthreads - 1; i++)
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Dgup_test.c95 int filed, i, opt, nr_pages = 1, thp = -1, write = 1, nthreads = 1, ret; in main() local
132 nthreads = atoi(optarg); in main()
205 ksft_set_plan(nthreads); in main()
258 tid = malloc(sizeof(pthread_t) * nthreads); in main()
260 for (i = 0; i < nthreads; i++) { in main()
264 for (i = 0; i < nthreads; i++) { in main()
Dpagemap_ioctl.c1304 static const unsigned int nthreads = 6, pages_per_thread = 32, access_per_thread = 8; variable
1391 if (pthread_barrier_init(&start_barrier, NULL, nthreads + 1)) in transact_test()
1394 if (pthread_barrier_init(&end_barrier, NULL, nthreads + 1)) in transact_test()
1397 mem = mmap(NULL, 0x1000 * nthreads * pages_per_thread, PROT_READ | PROT_WRITE, in transact_test()
1402 wp_init(mem, 0x1000 * nthreads * pages_per_thread); in transact_test()
1403 wp_addr_range(mem, 0x1000 * nthreads * pages_per_thread); in transact_test()
1405 memset(mem, 0, 0x1000 * nthreads * pages_per_thread); in transact_test()
1407 count = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1, page_size); in transact_test()
1409 count = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1, page_size); in transact_test()
1413 for (i = 0; i < nthreads; ++i) in transact_test()
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/linux-6.12.1/tools/perf/util/
Dcounts.c10 struct perf_counts *perf_counts__new(int ncpus, int nthreads) in perf_counts__new() argument
17 values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values)); in perf_counts__new()
25 values = xyarray__new(ncpus, nthreads, sizeof(bool)); in perf_counts__new()
61 int nthreads = perf_thread_map__nr(evsel->core.threads); in evsel__alloc_counts() local
63 evsel->counts = perf_counts__new(perf_cpu_map__nr(cpus), nthreads); in evsel__alloc_counts()
/linux-6.12.1/arch/powerpc/platforms/pseries/
Dhotplug-cpu.c153 static int find_cpu_id_range(unsigned int nthreads, int assigned_node, in find_cpu_id_range() argument
164 for (cpu = 0; cpu < nthreads; cpu++) in find_cpu_id_range()
193 cpumask_shift_left(*cpu_mask, *cpu_mask, nthreads); in find_cpu_id_range()
213 int len, nthreads, node, cpu, assigned_node; in pseries_add_processor() local
222 nthreads = len / sizeof(u32); in pseries_add_processor()
240 rc = find_cpu_id_range(nthreads, node, &cpu_mask); in pseries_add_processor()
246 rc = find_cpu_id_range(nthreads, NUMA_NO_NODE, &cpu_mask); in pseries_add_processor()
272 cpu, cpu + nthreads - 1); in pseries_add_processor()
296 int len, nthreads, i; in pseries_remove_processor() local
304 nthreads = len / sizeof(u32); in pseries_remove_processor()
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/linux-6.12.1/kernel/
Dscftorture.c54 torture_param(int, nthreads, -1, "# threads, defaults to -1 for all CPUs.");
162 for (i = 0; i < nthreads; i++) { in scf_torture_stats_print()
506 …verbose, holdoff, longwait, nthreads, onoff_holdoff, onoff_interval, shutdown, stat_interval, stut… in scftorture_print_module_parms()
521 if (nthreads && scf_stats_p) in scf_torture_cleanup()
522 for (i = 0; i < nthreads; i++) in scf_torture_cleanup()
628 if (nthreads < 0) in scf_torture_init()
629 nthreads = num_online_cpus(); in scf_torture_init()
630 scf_stats_p = kcalloc(nthreads, sizeof(scf_stats_p[0]), GFP_KERNEL); in scf_torture_init()
637 VERBOSE_SCFTORTOUT("Starting %d smp_call_function() threads", nthreads); in scf_torture_init()
639 atomic_set(&n_started, nthreads); in scf_torture_init()
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/linux-6.12.1/kernel/locking/
Dtest-ww_mutex.c315 static int __test_cycle(unsigned int nthreads) in __test_cycle() argument
318 unsigned int n, last = nthreads - 1; in __test_cycle()
321 cycles = kmalloc_array(nthreads, sizeof(*cycles), GFP_KERNEL); in __test_cycle()
325 for (n = 0; n < nthreads; n++) { in __test_cycle()
344 for (n = 0; n < nthreads; n++) in __test_cycle()
350 for (n = 0; n < nthreads; n++) { in __test_cycle()
357 n, nthreads, cycle->result); in __test_cycle()
362 for (n = 0; n < nthreads; n++) in __test_cycle()
574 static int stress(int nlocks, int nthreads, unsigned int flags) in stress() argument
584 stress_array = kmalloc_array(nthreads, sizeof(*stress_array), in stress()
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/linux-6.12.1/fs/nfsd/
Dnfssvc.c703 int nfsd_get_nrthreads(int n, int *nthreads, struct net *net) in nfsd_get_nrthreads() argument
711 nthreads[i] = serv->sv_pools[i].sp_nrthreads; in nfsd_get_nrthreads()
728 int nfsd_set_nrthreads(int n, int *nthreads, struct net *net) in nfsd_set_nrthreads() argument
745 return svc_set_num_threads(nn->nfsd_serv, NULL, nthreads[0]); in nfsd_set_nrthreads()
753 nthreads[i] = min(nthreads[i], NFSD_MAXSERVS); in nfsd_set_nrthreads()
754 tot += nthreads[i]; in nfsd_set_nrthreads()
759 int new = nthreads[i] * NFSD_MAXSERVS / tot; in nfsd_set_nrthreads()
760 tot -= (nthreads[i] - new); in nfsd_set_nrthreads()
761 nthreads[i] = new; in nfsd_set_nrthreads()
764 nthreads[i]--; in nfsd_set_nrthreads()
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Dnfsctl.c459 int *nthreads; in write_pool_threads() local
475 nthreads = kcalloc(npools, sizeof(int), GFP_KERNEL); in write_pool_threads()
477 if (nthreads == NULL) in write_pool_threads()
482 rv = get_int(&mesg, &nthreads[i]); in write_pool_threads()
488 if (nthreads[i] < 0) in write_pool_threads()
490 trace_nfsd_ctl_pool_threads(net, i, nthreads[i]); in write_pool_threads()
497 if (nthreads[0] == 0) in write_pool_threads()
498 nthreads[0] = 1; in write_pool_threads()
500 rv = nfsd_set_nrthreads(i, nthreads, net); in write_pool_threads()
505 rv = nfsd_get_nrthreads(npools, nthreads, net); in write_pool_threads()
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/linux-6.12.1/kernel/kcsan/
Dkcsan_test.c1388 long nthreads = (long)prev; in nthreads_gen_params() local
1390 if (nthreads < 0 || nthreads >= 32) in nthreads_gen_params()
1391 nthreads = 0; /* stop */ in nthreads_gen_params()
1392 else if (!nthreads) in nthreads_gen_params()
1393 nthreads = 2; /* initial value */ in nthreads_gen_params()
1394 else if (nthreads < 5) in nthreads_gen_params()
1395 nthreads++; in nthreads_gen_params()
1396 else if (nthreads == 5) in nthreads_gen_params()
1397 nthreads = 8; in nthreads_gen_params()
1399 nthreads *= 2; in nthreads_gen_params()
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/linux-6.12.1/arch/powerpc/kernel/
Dsetup-common.c415 static int assign_threads(unsigned int cpu, unsigned int nthreads, bool present, in assign_threads() argument
418 for (int i = 0; i < nthreads && cpu < nr_cpu_ids; i++) { in assign_threads()
456 int nthreads = 1; in smp_setup_cpu_maps() local
489 nthreads = len / sizeof(int); in smp_setup_cpu_maps()
499 cpu = nthreads; in smp_setup_cpu_maps()
505 assign_threads(0, nthreads, avail, intserv); in smp_setup_cpu_maps()
515 cpu = assign_threads(cpu, nthreads, avail, intserv); in smp_setup_cpu_maps()
521 nthreads = 1; in smp_setup_cpu_maps()
546 maxcpus *= nthreads; in smp_setup_cpu_maps()
572 cpu_init_thread_core_maps(nthreads); in smp_setup_cpu_maps()
/linux-6.12.1/tools/lib/perf/
Devsel.c52 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads) in perf_evsel__alloc_fd() argument
54 evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int)); in perf_evsel__alloc_fd()
60 for (thread = 0; thread < nthreads; thread++) { in perf_evsel__alloc_fd()
72 static int perf_evsel__alloc_mmap(struct perf_evsel *evsel, int ncpus, int nthreads) in perf_evsel__alloc_mmap() argument
74 evsel->mmap = xyarray__new(ncpus, nthreads, sizeof(struct perf_mmap)); in perf_evsel__alloc_mmap()
513 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads) in perf_evsel__alloc_id() argument
515 if (ncpus == 0 || nthreads == 0) in perf_evsel__alloc_id()
518 evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id)); in perf_evsel__alloc_id()
522 evsel->id = zalloc(ncpus * nthreads * sizeof(u64)); in perf_evsel__alloc_id()
/linux-6.12.1/lib/
Dtest_objpool.c39 atomic_t nthreads ____cacheline_aligned_in_smp;
142 atomic_set(&data->nthreads, 1); in ot_init_data()
223 atomic_inc(&test->data.nthreads); in ot_thread_worker()
236 if (atomic_dec_and_test(&test->data.nthreads)) in ot_thread_worker()
245 int cpu, nthreads = 0; in ot_perf_report() local
266 nthreads++; in ot_perf_report()
272 pr_info("ALL: \tnthreads: %d duration: %lluus\n", nthreads, duration); in ot_perf_report()
388 if (atomic_dec_and_test(&test->data.nthreads)) in ot_start_sync()
579 if (atomic_dec_and_test(&test->data.nthreads)) in ot_start_async()
/linux-6.12.1/arch/x86/kernel/cpu/
Ddebugfs.c61 unsigned int dom, nthreads = 1; in dom_debug_show() local
64 nthreads *= x86_topo_system.dom_size[dom]; in dom_debug_show()
67 x86_topo_system.dom_size[dom], nthreads); in dom_debug_show()
Dtopology_amd.c94 unsigned int nthreads = leaf.core_nthreads + 1; in parse_8000_001e() local
96 topology_update_dom(tscan, TOPO_SMT_DOMAIN, get_count_order(nthreads), nthreads); in parse_8000_001e()
/linux-6.12.1/tools/lib/perf/include/internal/
Devsel.h82 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
88 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
/linux-6.12.1/tools/testing/selftests/filesystems/binderfs/
Dbinderfs_test.c404 int i, j, k, nthreads; in TEST() local
454 nthreads = get_nprocs_conf(); in TEST()
455 if (nthreads > DEFAULT_THREADS) in TEST()
456 nthreads = DEFAULT_THREADS; in TEST()
461 for (i = 0; i < nthreads; i++) { in TEST()

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