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
|
#!/usr/sbin/dtrace -s
#
# Copyright (c) 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# 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 02110-1301 USA
#
# Show the time taken to execute a query, include the bytes and time taken
# to transfer the information over the network to/from the client
#pragma D option quiet
#pragma D option dynvarsize=4m
dtrace:::BEGIN
{
printf("%-2s %-30s %-10s %9s %18s %-s \n",
"St", "Who", "DB", "ConnID", "Dur microsec", "Query");
}
mysql*:::query-start
{
self->query = copyinstr(arg0);
self->who = strjoin(copyinstr(arg3),strjoin("@",copyinstr(arg4)));
self->db = copyinstr(arg2);
self->connid = arg1;
self->querystart = timestamp;
self->netwrite = 0;
self->netwritecum = 0;
self->netwritebase = 0;
self->netread = 0;
self->netreadcum = 0;
self->netreadbase = 0;
}
mysql*:::net-write-start
{
self->netwrite += arg0;
self->netwritebase = timestamp;
}
mysql*:::net-write-done
{
self->netwritecum += (timestamp - self->netwritebase);
self->netwritebase = 0;
}
mysql*:::net-read-start
{
self->netreadbase = timestamp;
}
mysql*:::net-read-done
{
self->netread += arg1;
self->netreadcum += (timestamp - self->netreadbase);
self->netreadbase = 0;
}
mysql*:::query-done
{
this->elapsed = (timestamp - self->querystart) /1000000;
printf("%2d %-30s %-10s %9d %18d %s\n",
arg0, self->who, self->db,
self->connid, this->elapsed, self->query);
printf("Net read: %d bytes (%d ms) write: %d bytes (%d ms)\n",
self->netread, (self->netreadcum/1000000),
self->netwrite, (self->netwritecum/1000000));
}
|
