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136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/* Measure strsep functions.
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Copyright (C) 2013-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#define TEST_NAME "strsep"
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#include "bench-string.h"
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typedef char *(*proto_t) (const char **, const char *);
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IMPL (strsep, 1)
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static void
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do_one_test (impl_t * impl, const char *s1, const char *s2)
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{
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size_t i, iters = INNER_LOOP_ITERS;
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timing_t start, stop, cur;
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TIMING_NOW (start);
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for (i = 0; i < iters; ++i)
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{
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const char *s1a = s1;
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CALL (impl, &s1a, s2);
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if (s1a != NULL)
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((char*)s1a)[-1] = '1';
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}
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TIMING_NOW (stop);
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TIMING_DIFF (cur, start, stop);
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TIMING_PRINT_MEAN ((double) cur, (double) iters);
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}
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static void
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do_test (size_t align1, size_t align2, size_t len1, size_t len2, int fail)
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{
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char *s2 = (char *) (buf2 + align2);
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/* Search for a delimiter in a string containing mostly '0', so don't
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use '0' as a delimiter. */
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static const char d[] = "123456789abcdefg";
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#define dl (sizeof (d) - 1)
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char *ss2 = s2;
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for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0)
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{
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size_t t = l > dl ? dl : l;
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ss2 = mempcpy (ss2, d, t);
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}
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s2[len2] = '\0';
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printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:",
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len1, len2, align1, align2, fail ? "fail" : "found");
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FOR_EACH_IMPL (impl, 0)
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{
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char *s1 = (char *) (buf1 + align1);
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memset (s1, '0', len1);
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if (!fail)
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s1[len1 / 2] = '1';
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s1[len1] = '\0';
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do_one_test (impl, s1, s2);
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}
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putchar ('\n');
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}
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static int
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test_main (void)
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{
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test_init ();
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printf ("%23s", "");
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FOR_EACH_IMPL (impl, 0)
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printf ("\t%s", impl->name);
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putchar ('\n');
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for (size_t klen = 2; klen < 32; ++klen)
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for (size_t hlen = 4 * klen; hlen < 8 * klen; hlen += klen)
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{
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do_test (0, 0, hlen, klen, 0);
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do_test (0, 0, hlen, klen, 1);
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do_test (0, 3, hlen, klen, 0);
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do_test (0, 3, hlen, klen, 1);
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do_test (0, 9, hlen, klen, 0);
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do_test (0, 9, hlen, klen, 1);
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do_test (0, 15, hlen, klen, 0);
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do_test (0, 15, hlen, klen, 1);
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do_test (3, 0, hlen, klen, 0);
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do_test (3, 0, hlen, klen, 1);
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do_test (3, 3, hlen, klen, 0);
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do_test (3, 3, hlen, klen, 1);
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do_test (3, 9, hlen, klen, 0);
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do_test (3, 9, hlen, klen, 1);
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do_test (3, 15, hlen, klen, 0);
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do_test (3, 15, hlen, klen, 1);
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do_test (9, 0, hlen, klen, 0);
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do_test (9, 0, hlen, klen, 1);
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do_test (9, 3, hlen, klen, 0);
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do_test (9, 3, hlen, klen, 1);
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do_test (9, 9, hlen, klen, 0);
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do_test (9, 9, hlen, klen, 1);
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do_test (9, 15, hlen, klen, 0);
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do_test (9, 15, hlen, klen, 1);
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do_test (15, 0, hlen, klen, 0);
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do_test (15, 0, hlen, klen, 1);
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do_test (15, 3, hlen, klen, 0);
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do_test (15, 3, hlen, klen, 1);
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do_test (15, 9, hlen, klen, 0);
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do_test (15, 9, hlen, klen, 1);
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do_test (15, 15, hlen, klen, 0);
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do_test (15, 15, hlen, klen, 1);
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}
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do_test (0, 0, page_size - 1, 16, 0);
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do_test (0, 0, page_size - 1, 16, 1);
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return ret;
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}
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#include <support/test-driver.c>
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