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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file
Unit tests for lock-free algorithms of mysys
*/
#include "thr_template.c"
#include <lf.h>
int32 inserts= 0, N;
LF_ALLOCATOR lf_allocator;
LF_HASH lf_hash;
int with_my_thread_init=0;
/*
pin allocator - alloc and release an element in a loop
*/
pthread_handler_t test_lf_pinbox(void *arg)
{
int m= *(int *)arg;
LF_PINS *pins;
if (with_my_thread_init)
my_thread_init();
pins= lf_pinbox_get_pins(&lf_allocator.pinbox);
for (; m ; m--)
{
lf_pinbox_put_pins(pins);
pins= lf_pinbox_get_pins(&lf_allocator.pinbox);
}
lf_pinbox_put_pins(pins);
if (with_my_thread_init)
my_thread_end();
return 0;
}
/*
thread local data area, allocated using lf_alloc.
union is required to enforce the minimum required element size (sizeof(ptr))
*/
typedef union {
int32 data;
void *not_used;
} TLA;
pthread_handler_t test_lf_alloc(void *arg)
{
int m= (*(int *)arg)/2;
int32 x,y= 0;
LF_PINS *pins;
if (with_my_thread_init)
my_thread_init();
pins= lf_alloc_get_pins(&lf_allocator);
for (x= ((int)(intptr)(&m)); m ; m--)
{
TLA *node1, *node2;
x= (x*m+0x87654321) & INT_MAX32;
node1= (TLA *)lf_alloc_new(pins);
node1->data= x;
y+= node1->data;
node1->data= 0;
node2= (TLA *)lf_alloc_new(pins);
node2->data= x;
y-= node2->data;
node2->data= 0;
lf_alloc_free(pins, node1);
lf_alloc_free(pins, node2);
}
lf_alloc_put_pins(pins);
pthread_mutex_lock(&mutex);
bad+= y;
if (--N == 0)
{
diag("%d mallocs, %d pins in stack",
lf_allocator.mallocs, lf_allocator.pinbox.pins_in_array);
#ifdef MY_LF_EXTRA_DEBUG
bad|= lf_allocator.mallocs - lf_alloc_pool_count(&lf_allocator);
#endif
}
pthread_mutex_unlock(&mutex);
if (with_my_thread_init)
my_thread_end();
return 0;
}
my_bool do_sum(void *num, void *acc)
{
*(int *)acc += *(int *)num;
return 0;
}
#define N_TLH 1000
pthread_handler_t test_lf_hash(void *arg)
{
int m= (*(int *)arg)/(2*N_TLH);
int32 x,y,z,sum= 0, ins= 0, scans= 0;
LF_PINS *pins;
if (with_my_thread_init)
my_thread_init();
pins= lf_hash_get_pins(&lf_hash);
for (x= ((int)(intptr)(&m)); m ; m--)
{
int i;
y= x;
for (i= 0; i < N_TLH; i++)
{
x= (x*(m+i)+0x87654321) & INT_MAX32;
z= (x<0) ? -x : x;
if (lf_hash_insert(&lf_hash, pins, &z))
{
sum+= z;
ins++;
}
else
{
int unused= 0;
lf_hash_iterate(&lf_hash, pins, do_sum, &unused);
scans++;
}
}
for (i= 0; i < N_TLH; i++)
{
y= (y*(m+i)+0x87654321) & INT_MAX32;
z= (y<0) ? -y : y;
if (lf_hash_delete(&lf_hash, pins, (uchar *)&z, sizeof(z)))
sum-= z;
}
}
lf_hash_put_pins(pins);
pthread_mutex_lock(&mutex);
bad+= sum;
inserts+= ins;
if (--N == 0)
{
diag("%d mallocs, %d pins in stack, %d hash size, %d inserts, %d scans",
lf_hash.alloc.mallocs, lf_hash.alloc.pinbox.pins_in_array,
lf_hash.size, inserts, scans);
bad|= lf_hash.count;
}
pthread_mutex_unlock(&mutex);
if (with_my_thread_init)
my_thread_end();
return 0;
}
void do_tests()
{
plan(6);
lf_alloc_init(&lf_allocator, sizeof(TLA), offsetof(TLA, not_used));
lf_hash_init(&lf_hash, sizeof(int), LF_HASH_UNIQUE, 0, sizeof(int), 0,
&my_charset_bin);
with_my_thread_init= 1;
test_concurrently("lf_pinbox (with my_thread_init)", test_lf_pinbox, N= THREADS, CYCLES);
test_concurrently("lf_alloc (with my_thread_init)", test_lf_alloc, N= THREADS, CYCLES);
test_concurrently("lf_hash (with my_thread_init)", test_lf_hash, N= THREADS, CYCLES);
with_my_thread_init= 0;
test_concurrently("lf_pinbox (without my_thread_init)", test_lf_pinbox, N= THREADS, CYCLES);
test_concurrently("lf_alloc (without my_thread_init)", test_lf_alloc, N= THREADS, CYCLES);
test_concurrently("lf_hash (without my_thread_init)", test_lf_hash, N= THREADS, CYCLES);
lf_hash_destroy(&lf_hash);
lf_alloc_destroy(&lf_allocator);
}
|
