1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* Measure hash functions runtime.
Copyright (C) 2022-2024 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
#ifndef TEST_FUNC
# error "No TEST_FUNC provided!"
#endif
#ifndef SIMPLE_TEST_FUNC
# error "No SIMPLE_TEST_FUNC provided!"
#endif
#ifndef TEST_NAME
# define STRINGIFY_PRIMITIVE(x) # x
# define STRINGIFY(x) STRINGIFY_PRIMITIVE (x)
# define TEST_NAME STRINGIFY (TEST_FUNC)
#endif
#include "json-lib.h"
#include "bench-timing.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
enum
{
NFIXED_ITERS = 1048576,
NRAND_BUFS = 16384,
NRAND_ITERS = 256,
RAND_BENCH_MAX_LEN = 128
};
#include "bench-hash-funcs-kernel.h"
#define SIMPLE
#include "bench-hash-funcs-kernel.h"
static void
do_one_test (json_ctx_t *json_ctx, size_t len)
{
char buf[len + 1];
memset (buf, -1, len);
buf[len] = '\0';
json_element_object_begin (json_ctx);
json_attr_string (json_ctx, "type", "fixed");
json_attr_uint (json_ctx, "length", len);
json_attr_double (json_ctx, "time_simple", do_one_test_kernel_simple (buf, len));
json_attr_double (json_ctx, "time_optimized", do_one_test_kernel_optimized (buf, len));
json_element_object_end (json_ctx);
}
static void __attribute__ ((noinline, noclone))
do_rand_test (json_ctx_t *json_ctx)
{
size_t i, sz, offset;
char *bufs;
unsigned int *sizes;
bufs = (char *) calloc (NRAND_BUFS, RAND_BENCH_MAX_LEN);
sizes = (unsigned int *) calloc (NRAND_BUFS, sizeof (unsigned int));
if (bufs == NULL || sizes == NULL)
{
fprintf (stderr, "Failed to allocate bufs for random test\n");
goto done;
}
for (sz = 2; sz <= RAND_BENCH_MAX_LEN; sz += sz)
{
json_element_object_begin (json_ctx);
json_attr_string (json_ctx, "type", "random");
json_attr_uint (json_ctx, "length", sz);
for (i = 0, offset = 0; i < NRAND_BUFS;
++i, offset += RAND_BENCH_MAX_LEN)
{
sizes[i] = random () % sz;
memset (bufs + offset, -1, sizes[i]);
bufs[offset + sizes[i]] = '\0';
}
json_attr_double (json_ctx, "time_simple",
do_rand_test_kernel_simple (bufs, sizes));
json_attr_double (json_ctx, "time_optimized",
do_rand_test_kernel_optimized (bufs, sizes));
json_element_object_end (json_ctx);
}
done:
if (bufs)
free (bufs);
if (sizes)
free (sizes);
}
static int
do_test (void)
{
int i;
json_ctx_t json_ctx;
json_init (&json_ctx, 0, stdout);
json_document_begin (&json_ctx);
json_attr_string (&json_ctx, "timing_type", TIMING_TYPE);
json_attr_object_begin (&json_ctx, "functions");
json_attr_object_begin (&json_ctx, TEST_NAME);
json_array_begin (&json_ctx, "results");
for (i = 0; i < 16; ++i)
do_one_test (&json_ctx, i);
for (i = 16; i <= 256; i += i)
do_one_test (&json_ctx, i);
do_rand_test (&json_ctx);
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return 0;
}
#include <support/test-driver.c>
|
