/* Measure pthread_create thread creation with different stack and guard sizes. Copyright (C) 2017-2023 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <stdio.h> #include <unistd.h> #include <support/xthread.h> static size_t pgsize; static void thread_create_init (void) { pgsize = sysconf (_SC_PAGESIZE); } static void * thread_dummy (void *arg) { return NULL; } static void thread_create (int nthreads, size_t stacksize, size_t guardsize) { pthread_attr_t attr; xpthread_attr_init (&attr); stacksize = stacksize * pgsize; guardsize = guardsize * pgsize; xpthread_attr_setstacksize (&attr, stacksize); xpthread_attr_setguardsize (&attr, guardsize); pthread_t ts[nthreads]; for (int i = 0; i < nthreads; i++) ts[i] = xpthread_create (&attr, thread_dummy, NULL); for (int i = 0; i < nthreads; i++) xpthread_join (ts[i]); }