summaryrefslogtreecommitdiff
path: root/benchtests/thread_create-source.c
diff options
context:
space:
mode:
Diffstat (limited to 'benchtests/thread_create-source.c')
-rw-r--r--benchtests/thread_create-source.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/benchtests/thread_create-source.c b/benchtests/thread_create-source.c
new file mode 100644
index 0000000000..2e32c84b3a
--- /dev/null
+++ b/benchtests/thread_create-source.c
@@ -0,0 +1,58 @@
+/* Measure pthread_create thread creation with different stack
+ and guard sizes.
+
+ Copyright (C) 2017-2018 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
+ <http://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]);
+}