mysql5/mysql-5.7.27/support-files/dtrace/query-filesort-time.d

66 lines
1.8 KiB
D

#!/usr/sbin/dtrace -s
/*
Copyright (c) 2009, 2014, 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 02110-1301 USA
*/
/*
Show the time taken for a query, including the time taken to
sort the results using filesort.
*/
#pragma D option quiet
dtrace:::BEGIN
{
printf("%-2s %-10s %-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->filesort = 0;
self->fsdb = "";
self->fstable = "";
}
mysql*:::filesort-start
{
self->filesort = timestamp;
self->fsdb = copyinstr(arg0);
self->fstable = copyinstr(arg1);
}
mysql*:::filesort-done
{
this->elapsed = (timestamp - self->filesort) /1000;
printf("%2d %-10s %-10s %9d %18d Filesort on %s\n",
arg0, self->who, self->fsdb,
self->connid, this->elapsed, self->fstable);
}
mysql*:::query-done
{
this->elapsed = (timestamp - self->querystart) /1000;
printf("%2d %-10s %-10s %9d %18d %s\n",
arg0, self->who, self->db,
self->connid, this->elapsed, self->query);
}