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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
|
/* Copyright (c) 2000, 2010, 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 */
/* Write some debug info */
#include "mariadb.h"
#include "sql_priv.h"
#include "unireg.h"
#include "sql_test.h"
#include "sql_base.h"
#include "sql_show.h" // calc_sum_of_all_status
#include "sql_select.h"
#include "keycaches.h"
#include "my_json_writer.h"
#include <hash.h>
#include "sql_connect.h"
#include "thread_cache.h"
#if defined(HAVE_MALLOC_H)
#include <malloc.h>
#endif
#if defined(HAVE_SYS_MALLOC_H)
#include <sys/malloc.h>
#endif
#if defined(HAVE_MALLOC_ZONE)
#include <malloc/malloc.h>
#endif
#ifdef HAVE_EVENT_SCHEDULER
#include "events.h"
#endif
#define FT_KEYPART (MAX_FIELDS+10)
static const char *lock_descriptions[] =
{
/* TL_UNLOCK */ "No lock",
/* TL_READ_DEFAULT */ NULL,
/* TL_READ */ "Low priority read lock",
/* TL_READ_WITH_SHARED_LOCKS */ "Shared read lock",
/* TL_READ_HIGH_PRIORITY */ "High priority read lock",
/* TL_READ_NO_INSERT */ "Read lock without concurrent inserts",
/* TL_READ_SKIP_LOCKED */ "Read lock without blocking if row is locked",
/* TL_WRITE_ALLOW_WRITE */ "Write lock that allows other writers",
/* TL_WRITE_CONCURRENT_INSERT */ "Concurrent insert lock",
/* TL_WRITE_DELAYED */ "Lock used by delayed insert",
/* TL_WRITE_DEFAULT */ NULL,
/* TL_WRITE_LOW_PRIORITY */ "Low priority write lock",
/* TL_WRITE_SKIP_LOCKED */ "Write lock but skip existing locked rows",
/* TL_WRITE */ "High priority write lock",
/* TL_WRITE_ONLY */ "Highest priority write lock"
};
#ifndef DBUG_OFF
void
print_where(COND *cond,const char *info, enum_query_type query_type)
{
char buff[1024];
String str(buff,(uint32) sizeof(buff), system_charset_info);
str.length(0);
str.extra_allocation(1024);
if (cond)
cond->print(&str, query_type);
DBUG_LOCK_FILE;
(void) fprintf(DBUG_FILE,"\nWHERE:(%s) %p ", info, cond);
(void) fputs(str.c_ptr_safe(),DBUG_FILE);
(void) fputc('\n',DBUG_FILE);
DBUG_UNLOCK_FILE;
}
#ifdef EXTRA_DEBUG
/* This is for debugging purposes */
static my_bool print_cached_tables_callback(TDC_element *element,
void *arg __attribute__((unused)))
{
TABLE *entry;
mysql_mutex_lock(&element->LOCK_table_share);
All_share_tables_list::Iterator it(element->all_tables);
while ((entry= it++))
{
THD *in_use= entry->in_use;
printf("%-14.14s %-32s%8ld%6d %s\n",
entry->s->db.str, entry->s->table_name.str,
in_use ? (long) in_use->thread_id : (long) 0,
entry->db_stat ? 1 : 0,
in_use ? lock_descriptions[(int)entry->reginfo.lock_type] :
"Not in use");
}
mysql_mutex_unlock(&element->LOCK_table_share);
return FALSE;
}
static void print_cached_tables(void)
{
compile_time_assert(TL_WRITE_ONLY+1 == array_elements(lock_descriptions));
/* purecov: begin tested */
puts("DB Table Version Thread Open Lock");
tdc_iterate(0, (my_hash_walk_action) print_cached_tables_callback, NULL, true);
fflush(stdout);
/* purecov: end */
return;
}
#endif
void TEST_filesort(SORT_FIELD *sortorder,uint s_length)
{
char buff[256],buff2[256];
String str(buff,sizeof(buff),system_charset_info);
String out(buff2,sizeof(buff2),system_charset_info);
DBUG_ASSERT(s_length > 0);
DBUG_ENTER("TEST_filesort");
out.length(0);
for (; s_length-- ; sortorder++)
{
if (sortorder->reverse)
out.append('-');
if (sortorder->field)
{
if (sortorder->field->table_name)
{
const char *table_name= *sortorder->field->table_name;
out.append(table_name, strlen(table_name));
out.append('.');
}
const char *name= sortorder->field->field_name.str;
if (!name)
name= "tmp_table_column";
out.append(name, strlen(name));
}
else
{
str.length(0);
sortorder->item->print(&str, QT_ORDINARY);
out.append(str);
}
out.append(' ');
}
out.chop(); // Remove last space
DBUG_LOCK_FILE;
(void) fputs("\nInfo about FILESORT\n",DBUG_FILE);
fprintf(DBUG_FILE,"Sortorder: %s\n",out.c_ptr_safe());
DBUG_UNLOCK_FILE;
DBUG_VOID_RETURN;
}
void
TEST_join(JOIN *join)
{
uint ref;
int i;
List_iterator<JOIN_TAB_RANGE> it(join->join_tab_ranges);
JOIN_TAB_RANGE *jt_range;
DBUG_ENTER("TEST_join");
DBUG_LOCK_FILE;
(void) fputs("\nInfo about JOIN\n",DBUG_FILE);
while ((jt_range= it++))
{
/*
Assemble results of all the calls to full_name() first,
in order not to garble the tabular output below.
*/
String ref_key_parts[MAX_TABLES];
int tables_in_range= (int)(jt_range->end - jt_range->start);
for (i= 0; i < tables_in_range; i++)
{
JOIN_TAB *tab= jt_range->start + i;
for (ref= 0; ref < tab->ref.key_parts; ref++)
{
ref_key_parts[i].append(tab->ref.items[ref]->full_name_cstring());
ref_key_parts[i].append(STRING_WITH_LEN(" "));
}
}
for (i= 0; i < tables_in_range; i++)
{
JOIN_TAB *tab= jt_range->start + i;
TABLE *form=tab->table;
char key_map_buff[128];
fprintf(DBUG_FILE,"%-16.16s type: %-7s q_keys: %s refs: %d key: %d len: %d\n",
form->alias.c_ptr(),
join_type_str[tab->type],
tab->keys.print(key_map_buff),
tab->ref.key_parts,
tab->ref.key,
tab->ref.key_length);
if (tab->select)
{
char buf[MAX_KEY/8+1];
if (tab->use_quick == 2)
fprintf(DBUG_FILE,
" quick select checked for each record (keys: %s)\n",
tab->select->quick_keys.print(buf));
else if (tab->select->quick)
{
fprintf(DBUG_FILE, " quick select used:\n");
tab->select->quick->dbug_dump(18, FALSE);
}
else
(void)fputs(" select used\n",DBUG_FILE);
}
if (tab->ref.key_parts)
{
fprintf(DBUG_FILE,
" refs: %s\n", ref_key_parts[i].c_ptr_safe());
}
}
(void)fputs("\n",DBUG_FILE);
}
DBUG_UNLOCK_FILE;
DBUG_VOID_RETURN;
}
static void print_keyuse(KEYUSE *keyuse)
{
char buff[256];
char buf2[64];
const char *fieldname;
JOIN_TAB *join_tab= keyuse->table->reginfo.join_tab;
KEY *key_info= join_tab->get_keyinfo_by_key_no(keyuse->key);
String str(buff,(uint32) sizeof(buff), system_charset_info);
str.length(0);
keyuse->val->print(&str, QT_ORDINARY);
str.append('\0');
if (keyuse->is_for_hash_join())
fieldname= keyuse->table->field[keyuse->keypart]->field_name.str;
else if (keyuse->keypart == FT_KEYPART)
fieldname= "FT_KEYPART";
else
fieldname= key_info->key_part[keyuse->keypart].field->field_name.str;
ll2str(keyuse->used_tables, buf2, 16, 0);
fprintf(DBUG_FILE, "KEYUSE: %s.%s=%s optimize: %u used_tables: %s "
"ref_table_rows: %lu keypart_map: %0lx\n",
keyuse->table->alias.c_ptr(), fieldname, str.ptr(),
(uint) keyuse->optimize, buf2, (ulong) keyuse->ref_table_rows,
(ulong) keyuse->keypart_map);
}
/* purecov: begin inspected */
void print_keyuse_array(DYNAMIC_ARRAY *keyuse_array)
{
DBUG_LOCK_FILE;
fprintf(DBUG_FILE, "KEYUSE array (%zu elements)\n", keyuse_array->elements);
for(uint i=0; i < keyuse_array->elements; i++)
print_keyuse((KEYUSE*)dynamic_array_ptr(keyuse_array, i));
DBUG_UNLOCK_FILE;
}
/*
Print the current state during query optimization.
SYNOPSIS
print_plan()
join pointer to the structure providing all context info for
the query
read_time the cost of the best partial plan
record_count estimate for the number of records returned by the best
partial plan
idx length of the partial QEP in 'join->positions';
also an index in the array 'join->best_ref';
info comment string to appear above the printout
DESCRIPTION
This function prints to the log file DBUG_FILE the members of 'join' that
are used during query optimization (join->positions, join->best_positions,
and join->best_ref) and few other related variables (read_time,
record_count).
Useful to trace query optimizer functions.
RETURN
None
*/
void
print_plan(JOIN* join, uint idx, double record_count, double read_time,
double current_read_time, const char *info)
{
uint i;
JOIN_TAB *join_table;
JOIN_TAB **plan_nodes;
TABLE* table;
if (info == 0)
info= "";
DBUG_LOCK_FILE;
if (join->best_read == DBL_MAX)
{
fprintf(DBUG_FILE,
"%s; idx: %u best: DBL_MAX atime: %g itime: %g count: %g\n",
info, idx, current_read_time, read_time, record_count);
}
else
{
fprintf(DBUG_FILE,
"%s; idx :%u best: %g accumulated: %g increment: %g count: %g\n",
info, idx, join->best_read, current_read_time, read_time,
record_count);
}
/* Print the tables in JOIN->positions */
fputs(" POSITIONS: ", DBUG_FILE);
for (i= 0; i < idx ; i++)
{
POSITION *pos= join->positions + i;
table= pos->table->table;
if (table)
fputs(table->s->table_name.str, DBUG_FILE);
fputc(' ', DBUG_FILE);
}
fputc('\n', DBUG_FILE);
/*
Print the tables in JOIN->best_positions only if at least one complete plan
has been found. An indicator for this is the value of 'join->best_read'.
*/
if (join->best_read < DBL_MAX)
{
fputs("BEST_POSITIONS: ", DBUG_FILE);
for (i= 0; i < idx ; i++)
{
POSITION *pos= join->best_positions + i;
table= pos->table->table;
if (table)
fputs(table->s->table_name.str, DBUG_FILE);
fputc(' ', DBUG_FILE);
}
}
fputc('\n', DBUG_FILE);
/* Print the tables in JOIN->best_ref */
fputs(" BEST_REF: ", DBUG_FILE);
for (plan_nodes= join->best_ref ; *plan_nodes ; plan_nodes++)
{
join_table= (*plan_nodes);
fputs(join_table->table->s->table_name.str, DBUG_FILE);
fprintf(DBUG_FILE, "(%lu,%lu,%lu)",
(ulong) join_table->found_records,
(ulong) join_table->records,
(ulong) join_table->read_time);
fputc(' ', DBUG_FILE);
}
fputc('\n', DBUG_FILE);
DBUG_UNLOCK_FILE;
}
void print_sjm(SJ_MATERIALIZATION_INFO *sjm)
{
DBUG_LOCK_FILE;
fprintf(DBUG_FILE, "\nsemi-join nest{\n");
fprintf(DBUG_FILE, " tables { \n");
for (uint i= 0;i < sjm->tables; i++)
{
fprintf(DBUG_FILE, " %s%s\n",
sjm->positions[i].table->table->alias.c_ptr(),
(i == sjm->tables -1)? "": ",");
}
fprintf(DBUG_FILE, " }\n");
fprintf(DBUG_FILE, " materialize_cost= %g\n",
sjm->materialization_cost);
fprintf(DBUG_FILE, " rows= %g\n", sjm->rows);
fprintf(DBUG_FILE, "}\n");
DBUG_UNLOCK_FILE;
}
/* purecov: end */
/*
Debugging help: force List<...>::elem function not be removed as unused.
*/
Item* (List<Item>::*dbug_list_item_elem_ptr)(uint)= &List<Item>::elem;
Item_equal* (List<Item_equal>::*dbug_list_item_equal_elem_ptr)(uint)=
&List<Item_equal>::elem;
TABLE_LIST* (List<TABLE_LIST>::*dbug_list_table_list_elem_ptr)(uint) =
&List<TABLE_LIST>::elem;
#endif
typedef struct st_debug_lock
{
ulong thread_id;
char table_name[FN_REFLEN];
bool waiting;
const char *lock_text;
enum thr_lock_type type;
} TABLE_LOCK_INFO;
C_MODE_START
static int dl_compare(const void *p1, const void *p2)
{
TABLE_LOCK_INFO *a, *b;
a= (TABLE_LOCK_INFO *) p1;
b= (TABLE_LOCK_INFO *) p2;
if (a->thread_id > b->thread_id)
return 1;
if (a->thread_id < b->thread_id)
return -1;
if (a->waiting == b->waiting)
return 0;
else if (a->waiting)
return -1;
return 1;
}
C_MODE_END
static void push_locks_into_array(DYNAMIC_ARRAY *ar, THR_LOCK_DATA *data,
bool wait, const char *text)
{
if (data)
{
TABLE *table=(TABLE *)data->debug_print_param;
if (table && table->s->tmp_table == NO_TMP_TABLE)
{
TABLE_LOCK_INFO table_lock_info;
table_lock_info.thread_id= (ulong)table->in_use->thread_id;
memcpy(table_lock_info.table_name, table->s->table_cache_key.str,
table->s->table_cache_key.length);
table_lock_info.table_name[strlen(table_lock_info.table_name)]='.';
table_lock_info.waiting=wait;
table_lock_info.lock_text=text;
// lock_type is also obtainable from THR_LOCK_DATA
table_lock_info.type=table->reginfo.lock_type;
(void) push_dynamic(ar,(uchar*) &table_lock_info);
}
}
}
/*
Regarding MERGE tables:
For now, the best option is to use the common TABLE *pointer for all
cases; The drawback is that for MERGE tables we will see many locks
for the merge tables even if some of them are for individual tables.
The way to solve this is to add to 'THR_LOCK' structure a pointer to
the filename and use this when printing the data.
(We can for now ignore this and just print the same name for all merge
table parts; Please add the above as a comment to the display_lock
function so that we can easily add this if we ever need this.
*/
static void display_table_locks(void)
{
LIST *list;
void *saved_base;
DYNAMIC_ARRAY saved_table_locks;
(void) my_init_dynamic_array(key_memory_locked_thread_list,
&saved_table_locks, sizeof(TABLE_LOCK_INFO),
tc_records() + 20, 50, MYF(0));
mysql_mutex_lock(&THR_LOCK_lock);
for (list= thr_lock_thread_list; list; list= list_rest(list))
{
THR_LOCK *lock=(THR_LOCK*) list->data;
mysql_mutex_lock(&lock->mutex);
push_locks_into_array(&saved_table_locks, lock->write.data, FALSE,
"Locked - write");
push_locks_into_array(&saved_table_locks, lock->write_wait.data, TRUE,
"Waiting - write");
push_locks_into_array(&saved_table_locks, lock->read.data, FALSE,
"Locked - read");
push_locks_into_array(&saved_table_locks, lock->read_wait.data, TRUE,
"Waiting - read");
mysql_mutex_unlock(&lock->mutex);
}
mysql_mutex_unlock(&THR_LOCK_lock);
if (!saved_table_locks.elements)
goto end;
saved_base= dynamic_element(&saved_table_locks, 0, TABLE_LOCK_INFO *);
my_qsort(saved_base, saved_table_locks.elements, sizeof(TABLE_LOCK_INFO),
dl_compare);
freeze_size(&saved_table_locks);
puts("\nThread database.table_name Locked/Waiting Lock_type\n");
unsigned int i;
for (i=0 ; i < saved_table_locks.elements ; i++)
{
TABLE_LOCK_INFO *dl_ptr=dynamic_element(&saved_table_locks,i,TABLE_LOCK_INFO*);
printf("%-8ld%-28.28s%-22s%s\n",
dl_ptr->thread_id,dl_ptr->table_name,dl_ptr->lock_text,lock_descriptions[(int)dl_ptr->type]);
}
puts("\n\n");
end:
delete_dynamic(&saved_table_locks);
}
C_MODE_START
static int print_key_cache_status(const char *name, KEY_CACHE *key_cache,
void *unused __attribute__((unused)))
{
char llbuff1[22];
char llbuff2[22];
char llbuff3[22];
char llbuff4[22];
if (!key_cache->key_cache_inited)
{
printf("%s: Not in use\n", name);
}
else
{
KEY_CACHE_STATISTICS stats;
get_key_cache_statistics(key_cache, 0, &stats);
printf("%s\n\
Buffer_size: %10lu\n\
Block_size: %10lu\n\
Division_limit: %10lu\n\
Age_threshold: %10lu\n\
Partitions: %10lu\n\
blocks used: %10lu\n\
not flushed: %10lu\n\
w_requests: %10s\n\
writes: %10s\n\
r_requests: %10s\n\
reads: %10s\n\n",
name,
(ulong)key_cache->param_buff_size,
(ulong)key_cache->param_block_size,
(ulong)key_cache->param_division_limit,
(ulong)key_cache->param_age_threshold,
(ulong)key_cache->param_partitions,
(ulong)stats.blocks_used,
(ulong)stats.blocks_changed,
llstr(stats.write_requests,llbuff1),
llstr(stats.writes,llbuff2),
llstr(stats.read_requests,llbuff3),
llstr(stats.reads,llbuff4));
}
return 0;
}
C_MODE_END
void mysql_print_status()
{
char current_dir[FN_REFLEN];
STATUS_VAR tmp;
uint count;
tmp= global_status_var;
count= calc_sum_of_all_status(&tmp);
printf("\nStatus information:\n\n");
(void) my_getwd(current_dir, sizeof(current_dir),MYF(0));
printf("Current dir: %s\n", current_dir);
printf("Running threads: %d Cached threads: %lu Stack size: %ld\n",
count, thread_cache.size(),
(long) my_thread_stack_size);
#ifdef EXTRA_DEBUG
thr_print_locks(); // Write some debug info
print_cached_tables();
#endif
/* Print key cache status */
puts("\nKey caches:");
process_key_caches(print_key_cache_status, 0);
printf("\nhandler status:\n\
read_key: %10lu\n\
read_next: %10lu\n\
read_rnd %10lu\n\
read_first: %10lu\n\
write: %10lu\n\
delete %10lu\n\
update: %10lu\n",
tmp.ha_read_key_count,
tmp.ha_read_next_count,
tmp.ha_read_rnd_count,
tmp.ha_read_first_count,
tmp.ha_write_count,
tmp.ha_delete_count,
tmp.ha_update_count);
printf("\nTable status:\n\
Opened tables: %10lu\n\
Open tables: %10u\n\
Open files: %10u\n\
Open streams: %10lu\n",
tmp.opened_tables,
tc_records(),
my_file_opened,
my_stream_opened);
display_table_locks();
#if defined(HAVE_MALLINFO2)
struct mallinfo2 info = mallinfo2();
#elif defined(HAVE_MALLINFO)
struct mallinfo info= mallinfo();
#endif
#if __has_feature(memory_sanitizer)
/* Work around missing MSAN instrumentation */
MEM_MAKE_DEFINED(&info, sizeof info);
#endif
#if defined(HAVE_MALLINFO) || defined(HAVE_MALLINFO2)
char llbuff[10][22];
printf("\nMemory status:\n\
Non-mmapped space allocated from system: %s\n\
Number of free chunks: %lu\n\
Number of fastbin blocks: %lu\n\
Number of mmapped regions: %lu\n\
Space in mmapped regions: %s\n\
Maximum total allocated space: %s\n\
Space available in freed fastbin blocks: %s\n\
Total allocated space: %s\n\
Total free space: %s\n\
Top-most, releasable space: %s\n\
Estimated memory (with thread stack): %s\n\
Global memory allocated by server: %s\n\
Memory allocated by threads: %s\n",
llstr(info.arena, llbuff[0]),
(ulong) info.ordblks,
(ulong) info.smblks,
(ulong) info.hblks,
llstr(info.hblkhd, llbuff[1]),
llstr(info.usmblks, llbuff[2]),
llstr(info.fsmblks, llbuff[3]),
llstr(info.uordblks, llbuff[4]),
llstr(info.fordblks, llbuff[5]),
llstr(info.keepcost, llbuff[6]),
llstr((count + thread_cache.size()) * my_thread_stack_size +
info.hblkhd + info.arena, llbuff[7]),
llstr(tmp.global_memory_used, llbuff[8]),
llstr(tmp.local_memory_used, llbuff[9]));
#elif defined(HAVE_MALLOC_ZONE)
malloc_statistics_t info;
char llbuff[4][22];
malloc_zone_statistics(nullptr, &info);
printf("\nMemory status:\n\
Total allocated space: %s\n\
Total free space: %s\n\
Global memory allocated by server: %s\n\
Memory allocated by threads: %s\n",
llstr(info.size_allocated, llbuff[0]),
llstr((info.size_allocated - info.size_in_use), llbuff[1]),
llstr(tmp.global_memory_used, llbuff[2]),
llstr(tmp.local_memory_used, llbuff[3]));
#endif
#ifdef HAVE_EVENT_SCHEDULER
Events::dump_internal_status();
#endif
puts("");
fflush(stdout);
}
void print_keyuse_array_for_trace(THD *thd, DYNAMIC_ARRAY *keyuse_array)
{
DBUG_ASSERT(thd->trace_started());
Json_writer_object wrapper(thd);
Json_writer_array trace_key_uses(thd, "ref_optimizer_key_uses");
for (uint i=0; i < keyuse_array->elements; i++)
{
KEYUSE *keyuse= (KEYUSE*)dynamic_array_ptr(keyuse_array, i);
Json_writer_object keyuse_elem(thd);
keyuse_elem.add_table_name(keyuse->table->reginfo.join_tab);
if (keyuse->keypart != FT_KEYPART && !keyuse->is_for_hash_join())
{
keyuse_elem.add("index", keyuse->table->key_info[keyuse->key].name);
}
keyuse_elem.
add("field", (keyuse->keypart == FT_KEYPART) ? "<fulltext>":
(keyuse->is_for_hash_join() ?
keyuse->table->field[keyuse->keypart]
->field_name.str :
keyuse->table->key_info[keyuse->key]
.key_part[keyuse->keypart]
.field->field_name.str)).
add("equals",keyuse->val).
add("null_rejecting",keyuse->null_rejecting);
}
}
|