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79 lines
2.2 KiB
D
79 lines
2.2 KiB
D
#!/usr/sbin/dtrace -s
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#
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# Copyright (c) 2009 Sun Microsystems, Inc.
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# Use is subject to license terms.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
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#
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# Show the time taken to execute a query, include the bytes and time taken
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# to transfer the information over the network to/from the client
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#pragma D option quiet
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#pragma D option dynvarsize=4m
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dtrace:::BEGIN
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{
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printf("%-2s %-30s %-10s %9s %18s %-s \n",
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"St", "Who", "DB", "ConnID", "Dur microsec", "Query");
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}
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mysql*:::query-start
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{
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self->query = copyinstr(arg0);
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self->who = strjoin(copyinstr(arg3),strjoin("@",copyinstr(arg4)));
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self->db = copyinstr(arg2);
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self->connid = arg1;
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self->querystart = timestamp;
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self->netwrite = 0;
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self->netwritecum = 0;
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self->netwritebase = 0;
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self->netread = 0;
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self->netreadcum = 0;
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self->netreadbase = 0;
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}
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mysql*:::net-write-start
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{
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self->netwrite += arg0;
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self->netwritebase = timestamp;
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}
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mysql*:::net-write-done
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{
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self->netwritecum += (timestamp - self->netwritebase);
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self->netwritebase = 0;
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}
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mysql*:::net-read-start
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{
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self->netreadbase = timestamp;
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}
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mysql*:::net-read-done
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{
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self->netread += arg1;
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self->netreadcum += (timestamp - self->netreadbase);
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self->netreadbase = 0;
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}
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mysql*:::query-done
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{
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this->elapsed = (timestamp - self->querystart) /1000000;
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printf("%2d %-30s %-10s %9d %18d %s\n",
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arg0, self->who, self->db,
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self->connid, this->elapsed, self->query);
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printf("Net read: %d bytes (%d ms) write: %d bytes (%d ms)\n",
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self->netread, (self->netreadcum/1000000),
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self->netwrite, (self->netwritecum/1000000));
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}
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