mirror of git://sourceware.org/git/glibc.git
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/* CPU Affinity inheritance test - sched_{gs}etaffinity.
|
|
Copyright The GNU Toolchain Authors.
|
|
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/>. */
|
|
|
|
/* See top level comment in nptl/tst-skeleton-affinity-inheritance.c for a
|
|
description of this test. */
|
|
|
|
#include <sched.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <support/check.h>
|
|
|
|
static void
|
|
set_my_affinity (size_t size, const cpu_set_t *set)
|
|
{
|
|
int ret = sched_setaffinity (0, size, set);
|
|
|
|
if (ret != 0)
|
|
FAIL ("sched_setaffinity returned %d (%s)", ret, strerror (ret));
|
|
}
|
|
|
|
static void
|
|
verify_my_affinity (int nproc, int nproc_configured, size_t size,
|
|
const cpu_set_t *expected_set)
|
|
{
|
|
cpu_set_t *set = CPU_ALLOC (nproc_configured);
|
|
cpu_set_t *xor_set = CPU_ALLOC (nproc_configured);
|
|
|
|
if (set == NULL || xor_set== NULL)
|
|
FAIL_EXIT1 ("verify_my_affinity: Failed to allocate cpuset: %m\n");
|
|
|
|
int ret = sched_getaffinity (0, size, set);
|
|
if (ret != 0)
|
|
FAIL ("sched_getaffinity returned %d (%s)", ret, strerror (ret));
|
|
|
|
CPU_XOR_S (size, xor_set, expected_set, set);
|
|
|
|
int cpucount = CPU_COUNT_S (size, xor_set);
|
|
|
|
if (cpucount > 0)
|
|
{
|
|
FAIL ("Affinity mask not inherited, "
|
|
"following %d CPUs mismatched in the expected and actual sets:\n",
|
|
cpucount);
|
|
for (int cur = 0; cur < nproc && cpucount >= 0; cur++)
|
|
if (CPU_ISSET_S (size, cur, xor_set))
|
|
{
|
|
printf ("%d ", cur);
|
|
cpucount--;
|
|
}
|
|
printf ("\n");
|
|
}
|
|
|
|
CPU_FREE (set);
|
|
CPU_FREE (xor_set);
|
|
}
|
|
|
|
#include <nptl/tst-skeleton-affinity-inheritance.c>
|