mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/* Measure strsep functions.
|
|
Copyright (C) 2013-2024 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/>. */
|
|
|
|
#define TEST_MAIN
|
|
#define TEST_NAME "strsep"
|
|
#include "bench-string.h"
|
|
|
|
typedef char *(*proto_t) (const char **, const char *);
|
|
|
|
IMPL (strsep, 1)
|
|
|
|
static void
|
|
do_one_test (impl_t * impl, const char *s1, const char *s2)
|
|
{
|
|
size_t i, iters = INNER_LOOP_ITERS;
|
|
timing_t start, stop, cur;
|
|
|
|
TIMING_NOW (start);
|
|
for (i = 0; i < iters; ++i)
|
|
{
|
|
const char *s1a = s1;
|
|
CALL (impl, &s1a, s2);
|
|
if (s1a != NULL)
|
|
((char*)s1a)[-1] = '1';
|
|
}
|
|
TIMING_NOW (stop);
|
|
|
|
TIMING_DIFF (cur, start, stop);
|
|
|
|
TIMING_PRINT_MEAN ((double) cur, (double) iters);
|
|
}
|
|
|
|
static void
|
|
do_test (size_t align1, size_t align2, size_t len1, size_t len2, int fail)
|
|
{
|
|
char *s2 = (char *) (buf2 + align2);
|
|
|
|
/* Search for a delimiter in a string containing mostly '0', so don't
|
|
use '0' as a delimiter. */
|
|
static const char d[] = "123456789abcdefg";
|
|
#define dl (sizeof (d) - 1)
|
|
char *ss2 = s2;
|
|
for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0)
|
|
{
|
|
size_t t = l > dl ? dl : l;
|
|
ss2 = mempcpy (ss2, d, t);
|
|
}
|
|
s2[len2] = '\0';
|
|
|
|
printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:",
|
|
len1, len2, align1, align2, fail ? "fail" : "found");
|
|
|
|
FOR_EACH_IMPL (impl, 0)
|
|
{
|
|
char *s1 = (char *) (buf1 + align1);
|
|
memset (s1, '0', len1);
|
|
if (!fail)
|
|
s1[len1 / 2] = '1';
|
|
s1[len1] = '\0';
|
|
do_one_test (impl, s1, s2);
|
|
}
|
|
putchar ('\n');
|
|
}
|
|
|
|
static int
|
|
test_main (void)
|
|
{
|
|
test_init ();
|
|
|
|
printf ("%23s", "");
|
|
FOR_EACH_IMPL (impl, 0)
|
|
printf ("\t%s", impl->name);
|
|
putchar ('\n');
|
|
|
|
for (size_t klen = 2; klen < 32; ++klen)
|
|
for (size_t hlen = 4 * klen; hlen < 8 * klen; hlen += klen)
|
|
{
|
|
do_test (0, 0, hlen, klen, 0);
|
|
do_test (0, 0, hlen, klen, 1);
|
|
do_test (0, 3, hlen, klen, 0);
|
|
do_test (0, 3, hlen, klen, 1);
|
|
do_test (0, 9, hlen, klen, 0);
|
|
do_test (0, 9, hlen, klen, 1);
|
|
do_test (0, 15, hlen, klen, 0);
|
|
do_test (0, 15, hlen, klen, 1);
|
|
|
|
do_test (3, 0, hlen, klen, 0);
|
|
do_test (3, 0, hlen, klen, 1);
|
|
do_test (3, 3, hlen, klen, 0);
|
|
do_test (3, 3, hlen, klen, 1);
|
|
do_test (3, 9, hlen, klen, 0);
|
|
do_test (3, 9, hlen, klen, 1);
|
|
do_test (3, 15, hlen, klen, 0);
|
|
do_test (3, 15, hlen, klen, 1);
|
|
|
|
do_test (9, 0, hlen, klen, 0);
|
|
do_test (9, 0, hlen, klen, 1);
|
|
do_test (9, 3, hlen, klen, 0);
|
|
do_test (9, 3, hlen, klen, 1);
|
|
do_test (9, 9, hlen, klen, 0);
|
|
do_test (9, 9, hlen, klen, 1);
|
|
do_test (9, 15, hlen, klen, 0);
|
|
do_test (9, 15, hlen, klen, 1);
|
|
|
|
do_test (15, 0, hlen, klen, 0);
|
|
do_test (15, 0, hlen, klen, 1);
|
|
do_test (15, 3, hlen, klen, 0);
|
|
do_test (15, 3, hlen, klen, 1);
|
|
do_test (15, 9, hlen, klen, 0);
|
|
do_test (15, 9, hlen, klen, 1);
|
|
do_test (15, 15, hlen, klen, 0);
|
|
do_test (15, 15, hlen, klen, 1);
|
|
}
|
|
do_test (0, 0, page_size - 1, 16, 0);
|
|
do_test (0, 0, page_size - 1, 16, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|