MySQL 5.6.14 Source Code Document
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statement-time.d
1 #!/usr/sbin/dtrace -s
2 #
3 # Copyright (c) 2009 Sun Microsystems, Inc.
4 # Use is subject to license terms.
5 #
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; version 2 of the License.
9 #
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #
19 # Creates a report on each query executed at the individual statement
20 # level, showing rows matched, updated, and total query time
21 
22 #pragma D option quiet
23 
24 dtrace:::BEGIN
25 {
26  printf("%-60s %-8s %-8s %-8s\n", "Query", "RowsU", "RowsM", "Dur (ms)");
27 }
28 
29 mysql*:::update-start, mysql*:::insert-start,
30 mysql*:::delete-start, mysql*:::multi-delete-start,
31 mysql*:::multi-delete-done, mysql*:::select-start,
32 mysql*:::insert-select-start, mysql*:::multi-update-start
33 {
34  self->query = copyinstr(arg0);
35  self->querystart = timestamp;
36 }
37 
38 mysql*:::insert-done, mysql*:::select-done,
39 mysql*:::delete-done, mysql*:::multi-delete-done, mysql*:::insert-select-done
40 / self->querystart /
41 {
42  this->elapsed = ((timestamp - self->querystart)/1000000);
43  printf("%-60s %-8d %-8d %d\n",
44  self->query,
45  0,
46  arg1,
47  this->elapsed);
48  self->querystart = 0;
49 }
50 
51 mysql*:::update-done, mysql*:::multi-update-done
52 / self->querystart /
53 {
54  this->elapsed = ((timestamp - self->querystart)/1000000);
55  printf("%-60s %-8d %-8d %d\n",
56  self->query,
57  arg1,
58  arg2,
59  this->elapsed);
60  self->querystart = 0;
61 }