1/* Measure pthread_create thread creation with different stack
2 and guard sizes.
3
4 Copyright (C) 2017-2024 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <https://www.gnu.org/licenses/>. */
20
21#include <stdio.h>
22#include <unistd.h>
23#include <support/xthread.h>
24
25static size_t pgsize;
26
27static void
28thread_create_init (void)
29{
30 pgsize = sysconf (_SC_PAGESIZE);
31}
32
33static void *
34thread_dummy (void *arg)
35{
36 return NULL;
37}
38
39static void
40thread_create (int nthreads, size_t stacksize, size_t guardsize)
41{
42 pthread_attr_t attr;
43 xpthread_attr_init (attr: &attr);
44
45 stacksize = stacksize * pgsize;
46 guardsize = guardsize * pgsize;
47
48 xpthread_attr_setstacksize (attr: &attr, stacksize);
49 xpthread_attr_setguardsize (attr: &attr, guardsize);
50
51 pthread_t ts[nthreads];
52
53 for (int i = 0; i < nthreads; i++)
54 ts[i] = xpthread_create (attr: &attr, thread_func: thread_dummy, NULL);
55
56 for (int i = 0; i < nthreads; i++)
57 xpthread_join (thr: ts[i]);
58}
59

source code of glibc/benchtests/thread_create-source.c