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glibc/benchtests/bench-strcoll.c

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/* Measure strcoll execution time in different locales.
Copyright (C) 2015-2024 Free Software Foundation, Inc.
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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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 13:40:42 +08:00
<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
#include <fcntl.h>
#include <assert.h>
#include <stdlib.h>
#include <locale.h>
#include <unistd.h>
#include <sys/stat.h>
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#include "json-lib.h"
#include "bench-timing.h"
#include <string.h>
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/* Many thanks to http://generator.lorem-ipsum.info/ */
#define INPUT_PREFIX "strcoll-inputs/"
static const char *const input_files[] = {
"filelist#C",
"filelist#en_US.UTF-8",
"lorem_ipsum#vi_VN.UTF-8",
"lorem_ipsum#ar_SA.UTF-8",
"lorem_ipsum#en_US.UTF-8",
"lorem_ipsum#zh_CN.UTF-8",
"lorem_ipsum#cs_CZ.UTF-8",
"lorem_ipsum#en_GB.UTF-8",
"lorem_ipsum#da_DK.UTF-8",
"lorem_ipsum#pl_PL.UTF-8",
"lorem_ipsum#fr_FR.UTF-8",
"lorem_ipsum#pt_PT.UTF-8",
"lorem_ipsum#el_GR.UTF-8",
"lorem_ipsum#ru_RU.UTF-8",
"lorem_ipsum#he_IL.UTF-8",
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"lorem_ipsum#es_ES.UTF-8",
"lorem_ipsum#hi_IN.UTF-8",
"lorem_ipsum#sv_SE.UTF-8",
"lorem_ipsum#hu_HU.UTF-8",
"lorem_ipsum#tr_TR.UTF-8",
"lorem_ipsum#is_IS.UTF-8",
"lorem_ipsum#it_IT.UTF-8",
"lorem_ipsum#sr_RS.UTF-8",
"lorem_ipsum#ja_JP.UTF-8"
};
#define TEXTFILE_DELIMITER " \n\r\t.,?!"
static char *
read_file (const char *filename)
{
struct stat stats;
char *buffer = NULL;
int fd = open (filename, O_CLOEXEC);
if (fd >= 0)
{
if (fstat (fd, &stats) == 0)
{
buffer = malloc (stats.st_size + 1);
if (buffer)
{
if (read (fd, buffer, stats.st_size) == stats.st_size)
buffer[stats.st_size] = '\0';
else
{
free (buffer);
buffer = NULL;
}
}
}
close (fd);
}
return buffer;
}
static size_t
count_words (const char *text, const char *delim)
{
size_t wordcount = 0;
char *tmp = strdup (text);
char *token = strtok (tmp, delim);
while (token != NULL)
{
if (*token != '\0')
wordcount++;
token = strtok (NULL, delim);
}
free (tmp);
return wordcount;
}
typedef struct
{
size_t size;
char **words;
} word_list;
static word_list *
new_word_list (size_t size)
{
word_list *list = malloc (sizeof (word_list));
assert (list != NULL);
list->size = size;
list->words = malloc (size * sizeof (char *));
assert (list->words != NULL);
return list;
}
static word_list *
str_word_list (const char *str, const char *delim)
{
size_t n = 0;
word_list *list = new_word_list (count_words (str, delim));
char *toks = strdup (str);
char *word = strtok (toks, delim);
while (word != NULL && n < list->size)
{
if (*word != '\0')
list->words[n++] = strdup (word);
word = strtok (NULL, delim);
}
free (toks);
return list;
}
static word_list *
copy_word_list (const word_list *list)
{
size_t i;
word_list *copy = new_word_list (list->size);
for (i = 0; i < list->size; i++)
copy->words[i] = strdup (list->words[i]);
return copy;
}
static void
free_word_list (word_list *list)
{
size_t i;
for (i = 0; i < list->size; i++)
free (list->words[i]);
free (list->words);
free (list);
}
static int
compare_words (const void *a, const void *b)
{
const char *s1 = *(char **) a;
const char *s2 = *(char **) b;
return strcoll (s1, s2);
}
#undef INNER_LOOP_ITERS
#define INNER_LOOP_ITERS 16
static void
bench_list (json_ctx_t *json_ctx, word_list *list)
{
size_t i;
timing_t start, stop, cur;
word_list **tests = malloc (INNER_LOOP_ITERS * sizeof (word_list *));
assert (tests != NULL);
for (i = 0; i < INNER_LOOP_ITERS; i++)
tests[i] = copy_word_list (list);
TIMING_NOW (start);
for (i = 0; i < INNER_LOOP_ITERS; i++)
qsort (tests[i]->words, tests[i]->size, sizeof (char *), compare_words);
TIMING_NOW (stop);
TIMING_DIFF (cur, start, stop);
setlocale (LC_ALL, "en_US.UTF-8");
json_attr_double (json_ctx, "duration", cur);
json_attr_double (json_ctx, "iterations", i);
json_attr_double (json_ctx, "mean", (double) cur / i);
for (i = 0; i < INNER_LOOP_ITERS; i++)
free_word_list (tests[i]);
free (tests);
}
typedef enum
{
OK,
ERROR_FILENAME,
ERROR_LOCALE,
ERROR_IO
} result_t;
static result_t
bench_file (json_ctx_t *json_ctx, const char *testname, const char *filename,
const char *locale)
{
if (setlocale (LC_ALL, locale) == NULL)
return ERROR_LOCALE;
char *text = read_file (filename);
if (text == NULL)
return ERROR_IO;
word_list *list = str_word_list (text, TEXTFILE_DELIMITER);
json_attr_object_begin (json_ctx, testname);
bench_list (json_ctx, list);
json_attr_object_end (json_ctx);
free_word_list (list);
free (text);
return OK;
}
int
main (void)
{
json_ctx_t *json_ctx = malloc (sizeof (json_ctx_t));
assert (json_ctx != NULL);
json_init (json_ctx, 2, stdout);
json_attr_object_begin (json_ctx, "strcoll");
size_t i;
result_t result = OK;
for (i = 0; i < (sizeof (input_files) / sizeof (input_files[0])); i++)
{
char *locale = strchr (input_files[i], '#');
if (locale == NULL)
{
printf ("Failed to get locale from filename %s, aborting!\n",
input_files[i]);
return ERROR_FILENAME;
}
char *filename;
if (asprintf (&filename, INPUT_PREFIX "%s", input_files[i]) < 0)
{
printf ("asprintf failed, aborting!\n");
return ERROR_FILENAME;
}
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result = bench_file (json_ctx, input_files[i], filename, locale + 1);
if (result != OK)
{
if (result == ERROR_LOCALE)
printf ("Failed to set locale %s, aborting!\n", locale);
else if (result == ERROR_IO)
printf ("Failed to read file %s, aborting!\n", filename);
free (filename);
goto out;
}
free (filename);
}
out:
json_attr_object_end (json_ctx);
free (json_ctx);
return result;
}