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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
diff -ruN a/innobase/include/srv0srv.h b/innobase/include/srv0srv.h
--- a/innobase/include/srv0srv.h 2009-07-06 15:59:52.000000000 +0900
+++ b/innobase/include/srv0srv.h 2009-07-06 16:06:51.000000000 +0900
@@ -90,6 +90,7 @@
extern ulint srv_mem_pool_size;
extern ulint srv_lock_table_size;
+extern ibool srv_use_sys_malloc;
extern ibool srv_thread_concurrency_timer_based;
extern ulint srv_n_file_io_threads;
diff -ruN a/innobase/mem/mem0dbg.c b/innobase/mem/mem0dbg.c
--- a/innobase/mem/mem0dbg.c 2009-05-08 06:12:10.000000000 +0900
+++ b/innobase/mem/mem0dbg.c 2009-07-06 16:48:17.000000000 +0900
@@ -134,6 +134,14 @@
mem_hash_initialized = TRUE;
#endif
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ /* When innodb_use_sys_malloc is set, the
+ mem_comm_pool won't be used for any allocations. We
+ create a dummy mem_comm_pool, because some statistics
+ and debugging code relies on it being initialized. */
+ size = 1;
+ }
+
mem_comm_pool = mem_pool_create(size);
}
diff -ruN a/innobase/mem/mem0pool.c b/innobase/mem/mem0pool.c
--- a/innobase/mem/mem0pool.c 2009-05-08 06:12:10.000000000 +0900
+++ b/innobase/mem/mem0pool.c 2009-07-06 17:22:09.000000000 +0900
@@ -11,6 +11,7 @@
#include "mem0pool.ic"
#endif
+#include "srv0srv.h"
#include "sync0sync.h"
#include "ut0mem.h"
#include "ut0lst.h"
@@ -191,8 +192,6 @@
ulint i;
ulint used;
- ut_a(size > 10000);
-
pool = ut_malloc(sizeof(mem_pool_t));
/* We do not set the memory to zero (FALSE) in the pool,
@@ -330,6 +329,10 @@
ulint n;
ibool ret;
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ return(malloc(size));
+ }
+
n = ut_2_log(ut_max(size + MEM_AREA_EXTRA_SIZE, MEM_AREA_MIN_SIZE));
mutex_enter(&(pool->mutex));
@@ -457,6 +460,11 @@
ulint size;
ulint n;
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ free(ptr);
+ return;
+ }
+
/* It may be that the area was really allocated from the OS with
regular malloc: check if ptr points within our memory pool */
diff -ruN a/innobase/srv/srv0srv.c b/innobase/srv/srv0srv.c
--- a/innobase/srv/srv0srv.c 2009-07-06 15:59:52.000000000 +0900
+++ b/innobase/srv/srv0srv.c 2009-07-06 16:08:06.000000000 +0900
@@ -273,6 +273,7 @@
computer. Bigger computers need bigger values. Value 0 will disable the
concurrency check. */
+ibool srv_use_sys_malloc = TRUE;
ibool srv_thread_concurrency_timer_based = TRUE;
ulong srv_thread_concurrency = 0;
ulong srv_commit_concurrency = 0;
diff -ruN a/innobase/srv/srv0start.c b/innobase/srv/srv0start.c
--- a/innobase/srv/srv0start.c 2009-07-06 15:59:52.000000000 +0900
+++ b/innobase/srv/srv0start.c 2009-07-06 16:23:38.000000000 +0900
@@ -1040,6 +1040,11 @@
return(DB_ERROR);
}
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ fprintf(stderr,
+ "InnoDB: The InnoDB memory heap is disabled\n");
+ }
+
#ifdef HAVE_ATOMIC_BUILTINS
fprintf(stderr,
"InnoDB: use atomic builtins.\n");
diff -ruN a/innobase/ut/ut0mem.c b/innobase/ut/ut0mem.c
--- a/innobase/ut/ut0mem.c 2009-05-08 06:12:13.000000000 +0900
+++ b/innobase/ut/ut0mem.c 2009-07-06 16:42:26.000000000 +0900
@@ -15,6 +15,7 @@
#include "mem0mem.h"
#include "os0sync.h"
#include "os0thread.h"
+#include "srv0srv.h"
/* This struct is placed first in every allocated memory block */
typedef struct ut_mem_block_struct ut_mem_block_t;
@@ -70,6 +71,18 @@
ulint retry_count = 0;
void* ret;
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ ret = malloc(n);
+ ut_a(ret || !assert_on_error);
+
+#ifdef UNIV_SET_MEM_TO_ZERO
+ if (set_to_zero) {
+ memset(ret, '\0', n);
+ }
+#endif
+ return(ret);
+ }
+
ut_ad((sizeof(ut_mem_block_t) % 8) == 0); /* check alignment ok */
if (!ut_mem_block_list_inited) {
@@ -223,6 +236,11 @@
{
ut_mem_block_t* block;
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ free(ptr);
+ return;
+ }
+
block = (ut_mem_block_t*)((byte*)ptr - sizeof(ut_mem_block_t));
os_fast_mutex_lock(&ut_list_mutex);
@@ -275,6 +293,10 @@
ulint min_size;
void* new_ptr;
+ if (UNIV_LIKELY(srv_use_sys_malloc)) {
+ return(realloc(ptr, size));
+ }
+
if (ptr == NULL) {
return(ut_malloc(size));
diff -ruN a/patch_info/innodb_use_sys_malloc.info b/patch_info/innodb_use_sys_malloc.info
--- /dev/null 1970-01-01 09:00:00.000000000 +0900
+++ b/patch_info/innodb_use_sys_malloc.info 2009-07-06 16:04:24.000000000 +0900
@@ -0,0 +1,6 @@
+File=innodb_use_sys_malloc.patch
+Name=InnoDB uses malloc directly (backport from InnoDB-Plugin)
+Version=1.0
+Author=Percona <info@percona.com>
+License=GPL
+Comment
diff -ruN a/sql/ha_innodb.cc b/sql/ha_innodb.cc
--- a/sql/ha_innodb.cc 2009-07-06 15:59:52.000000000 +0900
+++ b/sql/ha_innodb.cc 2009-07-06 16:10:15.000000000 +0900
@@ -152,6 +152,7 @@
innobase_open_files;
long innobase_read_io_threads, innobase_write_io_threads;
+my_bool innobase_use_sys_malloc;
my_bool innobase_thread_concurrency_timer_based;
long innobase_extra_rsegments;
longlong innobase_buffer_pool_size, innobase_log_file_size;
@@ -1492,6 +1493,8 @@
srv_n_log_files = (ulint) innobase_log_files_in_group;
srv_log_file_size = (ulint) innobase_log_file_size;
+ srv_use_sys_malloc = (ibool) innobase_use_sys_malloc;
+
srv_thread_concurrency_timer_based =
(ibool) innobase_thread_concurrency_timer_based;
diff -ruN a/sql/ha_innodb.h b/sql/ha_innodb.h
--- a/sql/ha_innodb.h 2009-07-06 15:59:52.000000000 +0900
+++ b/sql/ha_innodb.h 2009-07-06 16:10:42.000000000 +0900
@@ -205,6 +205,7 @@
extern long innobase_buffer_pool_awe_mem_mb;
extern long innobase_file_io_threads, innobase_lock_wait_timeout;
extern long innobase_read_io_threads, innobase_write_io_threads;
+extern my_bool innobase_use_sys_malloc;
extern my_bool innobase_thread_concurrency_timer_based;
extern long innobase_extra_rsegments;
extern long innobase_force_recovery;
diff -ruN a/sql/mysqld.cc b/sql/mysqld.cc
--- a/sql/mysqld.cc 2009-07-06 15:59:52.000000000 +0900
+++ b/sql/mysqld.cc 2009-07-06 16:16:56.000000000 +0900
@@ -5102,6 +5102,7 @@
OPT_INNODB_ADAPTIVE_CHECKPOINT,
OPT_INNODB_READ_IO_THREADS,
OPT_INNODB_WRITE_IO_THREADS,
+ OPT_INNODB_USE_SYS_MALLOC,
OPT_INNODB_THREAD_CONCURRENCY_TIMER_BASED,
OPT_INNODB_EXTRA_RSEGMENTS,
OPT_INNODB_DICT_SIZE_LIMIT,
@@ -5470,6 +5471,10 @@
"Number of background write I/O threads in InnoDB.",
(gptr*) &innobase_write_io_threads, (gptr*) &innobase_write_io_threads,
0, GET_LONG, REQUIRED_ARG, 8, 1, 64, 0, 0, 0},
+ {"innodb_use_sys_malloc", OPT_INNODB_USE_SYS_MALLOC,
+ "Use OS memory allocator instead of InnoDB's internal memory allocator",
+ (gptr*) &innobase_use_sys_malloc, (gptr*) &innobase_use_sys_malloc,
+ 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
{"innodb_thread_concurrency_timer_based", OPT_INNODB_THREAD_CONCURRENCY_TIMER_BASED,
"Use InnoDB timer based concurrency throttling. ",
(gptr*) &innobase_thread_concurrency_timer_based,
diff -ruN a/sql/set_var.cc b/sql/set_var.cc
--- a/sql/set_var.cc 2009-07-06 15:59:52.000000000 +0900
+++ b/sql/set_var.cc 2009-07-06 16:22:05.000000000 +0900
@@ -1093,6 +1093,7 @@
{sys_innodb_adaptive_checkpoint.name, (char*) &sys_innodb_adaptive_checkpoint, SHOW_SYS},
{"innodb_read_io_threads", (char*) &innobase_read_io_threads, SHOW_LONG},
{"innodb_write_io_threads", (char*) &innobase_write_io_threads, SHOW_LONG},
+ {"innodb_use_sys_malloc", (char*) &innobase_use_sys_malloc, SHOW_MY_BOOL},
{"innodb_thread_concurrency_timer_based", (char*) &innobase_thread_concurrency_timer_based, SHOW_MY_BOOL},
{"innodb_extra_rsegments", (char*) &innobase_extra_rsegments, SHOW_LONG},
{sys_innodb_dict_size_limit.name, (char*) &sys_innodb_dict_size_limit, SHOW_SYS},
|