mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
61c982910d
The test run is unnecessary and interferes with the benchmark. The tests are done during make check, so they're unnecessary here. * benchtests/bench-memccpy.c (do_one_test): Remove checks. * benchtests/bench-memchr.c (do_one_test): Likewise. * benchtests/bench-memcpy-large.c (do_one_test): Likewise. * benchtests/bench-memcpy.c (do_one_test): Likewise. * benchtests/bench-memmove-large.c (do_one_test): Likewise. * benchtests/bench-memmove.c (do_one_test): Likewise. * benchtests/bench-memset-large.c (do_one_test): Likewise. * benchtests/bench-memset.c (do_one_test): Likewise. * benchtests/bench-string.h (test_init): Remove memsets.
116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/* Measure memset functions with large data sizes.
|
|
Copyright (C) 2016-2017 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/>. */
|
|
|
|
#define TEST_MAIN
|
|
#ifndef WIDE
|
|
# define TEST_NAME "memset"
|
|
#else
|
|
# define TEST_NAME "wmemset"
|
|
#endif /* WIDE */
|
|
#define START_SIZE (128 * 1024)
|
|
#define MIN_PAGE_SIZE (getpagesize () + 64 * 1024 * 1024)
|
|
#define TIMEOUT (20 * 60)
|
|
#include "bench-string.h"
|
|
|
|
#ifndef WIDE
|
|
# define MEMSET memset
|
|
# define CHAR char
|
|
# define SIMPLE_MEMSET simple_memset
|
|
# define MEMCMP memcmp
|
|
#else
|
|
# include <wchar.h>
|
|
# define MEMSET wmemset
|
|
# define CHAR wchar_t
|
|
# define SIMPLE_MEMSET simple_wmemset
|
|
# define MEMCMP wmemcmp
|
|
#endif /* WIDE */
|
|
|
|
#include <assert.h>
|
|
|
|
IMPL (MEMSET, 1)
|
|
|
|
typedef CHAR *(*proto_t) (CHAR *, int, size_t);
|
|
|
|
CHAR *
|
|
inhibit_loop_to_libcall
|
|
SIMPLE_MEMSET (CHAR *s, int c, size_t n)
|
|
{
|
|
CHAR *r = s, *end = s + n;
|
|
while (r < end)
|
|
*r++ = c;
|
|
return s;
|
|
}
|
|
|
|
static void
|
|
do_one_test (impl_t *impl, CHAR *s, int c __attribute ((unused)), size_t n)
|
|
{
|
|
size_t i, iters = 16;
|
|
timing_t start, stop, cur;
|
|
|
|
TIMING_NOW (start);
|
|
for (i = 0; i < iters; ++i)
|
|
{
|
|
CALL (impl, s, c, n);
|
|
}
|
|
TIMING_NOW (stop);
|
|
|
|
TIMING_DIFF (cur, start, stop);
|
|
|
|
TIMING_PRINT_MEAN ((double) cur, (double) iters);
|
|
}
|
|
|
|
static void
|
|
do_test (size_t align, int c, size_t len)
|
|
{
|
|
align &= 63;
|
|
if ((align + len) * sizeof (CHAR) > page_size)
|
|
return;
|
|
|
|
printf ("Length %4zd, alignment %2zd, c %2d:", len, align, c);
|
|
|
|
FOR_EACH_IMPL (impl, 0)
|
|
do_one_test (impl, (CHAR *) (buf1) + align, c, len);
|
|
|
|
putchar ('\n');
|
|
}
|
|
|
|
int
|
|
test_main (void)
|
|
{
|
|
size_t i;
|
|
int c;
|
|
|
|
test_init ();
|
|
|
|
printf ("%24s", "");
|
|
FOR_EACH_IMPL (impl, 0)
|
|
printf ("\t%s", impl->name);
|
|
putchar ('\n');
|
|
|
|
c = 65;
|
|
for (i = START_SIZE; i <= MIN_PAGE_SIZE; i <<= 1)
|
|
{
|
|
do_test (0, c, i);
|
|
do_test (3, c, i);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|